Solved papers for AFMC AFMC Solved Paper-2007

AFMC Solved Paper-2007 Total Questions - 200

1) An electron moves through a small distance in a uniform electric field. The magnitude of electric field is \[2\times {{10}^{4}}N{{C}^{-1}}.\]Now, if the direction of field is reversed keeping the magnitude same and a proton moves through the same distance, then which of the following options is correct?

A)

The time of fall will be more in case of electron

B)

The time of fall will be more in case of proton

C)

The time of fall will be same in both cases

D)

The time of fall will be independent of charge

View Answer
2) The length of the wire 15 doubled, Its conductance will

A)

remain unchanged

B)

be halved

C)

be doubled

D)

be quadrupled

View Answer
3) The path of an electron in a uniform magnetic field may be

A)

circular but not helical

B)

helical but not circular

C)

neither helical nor circular

D)

either helical or circular

View Answer
4) A magnetic needle is placed on a cork floating in a still lake in the northern hemisphere. Does the needle together with the cork move towards the north of the lake?

A)

Yes

B)

No

C)

May or may not move

D)

Nothing can be said

View Answer
5) Use of eddy currents is done in the following except

A)

moving coil galvanometer

B)

electric brakes

C)

induction motor

D)

dynamo

View Answer
6) When air is replaced by a dielectric medium of constant K. The maximum force of attraction between two charges separated by a distance

A)

increases K-1 times

B)

increases K times

C)

decreases K times

D)

remains constant

View Answer
7) If the tension on a wire is removed at once, then

A)

it will break

B)

its temperature wilt reduce

C)

there will be no change in its temperature

D)

its temperature increases

View Answer
8) A capillary tube is attached horizontally to a constant head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of liquid will change nearly by

A)

+10 %

B)

+46 %

C)

-10 %

D)

-40 %

View Answer
9) Two equal drops of water are falling through air with a steady velocity v. If the drops coalesced what will be the new velocity?

A)

\[{{\left( 2 \right)}^{\frac{1}{3}}}v\]

B)

\[{{\left( 2 \right)}^{\frac{3}{2}}}v\]

C)

\[{{\left( 2 \right)}^{\frac{2}{3}}}v\]

D)

\[{{\left( 2 \right)}^{\frac{1}{4}}}v\]

View Answer
10) A good lubricant should have

A)

high viscosity

B)

low viscosity

C)

moderate viscosity

D)

high density

View Answer
11) Two friends A and B are waiting for another friend for tea. A took the tea in a cup and mixed the cold milk and then waits. B took the tea in the cup and then mixed the cold milk when the friend comes. Then the tea will be hotter in the cup of

A)

A

B)

B

C)

tea will be equally hot in both cups

D)

friend's cup

View Answer
12) The internal energy of an ideal gas increases during an isothermal process when the gas Is

A)

expanded by adding more molecules to It

B)

expanded by adding more heat to it

C)

expanded against zero pressure

D)

compressed by doing work on it

View Answer
13) At what temperature, the mean kinetic energy of C > 2 will be the same as that of Ha molecules at \[- 73{}^\circ C\]?

A)

\[{{127}^{0}}C\]

B)

\[527{}^\circ C\]

C)

\[-73{}^\circ C\]

D)

\[-137{}^\circ C\]

View Answer
14) The fundamental frequency of a closed pipe is 220 Hz. If - of the pipe is filled with water, the frequency of the first overtone of the pipe now is

A)

220 Hz

B)

440 Hz

C)

880 Hz

D)

1760 Hz

View Answer
15) The intensity of sound increases at night due to

A)

increase in density of air

B)

decrease in density of air

C)

low temperature

D)

none of the above

View Answer
16) If the energy of a hydrogen atom in nth orbit is En, then energy in the nth orbit of a singly ionized helium atom will be

A)

\[4{{E}_{n}}\]

B)

\[{{E}_{n}}/4\]

C)

\[2{{E}_{n}}\]

D)

\[{{E}_{n}}/2\]

View Answer
17) The fission of \[^{235}U\]can be triggered by the absorption of a slow neutron by a nucleus. Similarly a slow proton can also be used. This statement is

A)

correct

B)

wrong

C)

information is insufficient

D)

none of the above

View Answer
18) Would there be any advantage to add n-type or n - type impurities to copper?

A)

Yes

B)

No

C)

Maybe

D)

Information is insufficient

View Answer
19) In semiconductor the concentrations of electrons and holes are \[8\times {{10}^{18}}{{m}^{3}}\]and \[5\times {{10}^{18}}/{{m}^{3}}\]respectively. If the mobilities of electrons and holes are 2.3 m2 /Vs it and 0.01 m2 /Vs respectively, then semiconductor is

A)

n-type and its resistivity is 0.34 \[\Omega \]-m

B)

p-type and its resistivity is 0.034 \[\Omega \]-m

C)

n-type and its resistivity is 0.034 \[\Omega \]-m

D)

p-type and its resistivity is 3.4 \[\Omega \]-m

View Answer
20) When a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened \[{{^{1}}_{1}}H{{+}_{3}}L{{i}^{7}}{{\xrightarrow[{}]{{}}}_{2}}H{{e}^{4}}{{+}_{2}}H{{e}^{4}}\] This statement is

A)

true

B)

false

C)

may be true at a particular pressure

D)

none of the above

View Answer
21) A capacitor of 20 \[\mu \]F charged upto 500 V is connected in parallel with another capacitor of 10 \[\mu \]F which is charged upto 200V. The common potential is

A)

250V

B)

300V

C)

400V

D)

600V

View Answer
22) The slope of the velocity- time graph for retarded motion is

A)

positive

B)

negative

C)

zero

D)

can be + ve , - ve or zero

View Answer
23) A man throws balls with the same speed vertically upwards one after the other at an interval of 2s. What should be the speed of the throw so that more than two balls are in the sly at any time? (Given g = 9.8 m/s2)

A)

Any speed less than 19.6 m/s

B)

Only with speed 19.6 m/s

C)

More than 19.6 m/s

D)

At least 9.8 m/s

View Answer
24) The driver of a car travelling at velocity v suddenly sees a broad wall in front of him at a distance d. He should

A)

brake sharply

B)

turn sharply

C)

(a) and (b) both

D)

none of the above

View Answer
25) A 60 kg man stands on a spring scale in the lift. At some instant he finds, scale reading has changed from 60 kg to 50 kg for a while and then comes back to the original mark. What should we conclude?

A)

The lift was in constant motion upwards

B)

The lift was in constant modal downwards

C)

The lift while in constant motion upwards, is stopped suddenly

D)

The lift while in constant motto downwards, is suddenly stopped

View Answer
26) The limiting friction is

A)

always greater than the dynamic friction

B)

always less than the dynamic friction

C)

equal to the dynamic friction

D)

sometimes greater and sometimes less than the dynamic friction

View Answer
27) A free \[\alpha \]-particle and a free proton, which are separated by a distance of 10-10 m are released. The KE of \[\alpha \]-particle when at infinite separation is

A)

\[46\times {{10}^{-19}}J\]

B)

\[23\times {{10}^{-19}}J\]

C)

\[36.8\times {{10}^{-19}}J\]

D)

\[9.2\times {{10}^{-19}}J\]

View Answer
28) The modon of planets in the solar system is an example of conservation of

A)

mass

B)

momentum

C)

angular momentum

D)

kinetic energy

View Answer
29) The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimension of

A)

frequency

B)

velocity

C)

angular momentum

D)

time

View Answer
30) The time period of a simple pendulum in a stationary train is T. The time period of a mass attached to a spring is also T. The train accelerates at the rate 5 m/s. If the new time periods of the pendulum and spring be Tp and T, respectively, then

A)

Tp = T1

B)

Tp > Ts

C)

Tp < Ts

D)

cannot be predicted

View Answer
31) A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are (-/3, 3). The path of the particle makes with the x-axis an angle of

A)

\[30{}^\circ \]

B)

\[45{}^\circ \]

C)

\[60{}^\circ \]

D)

\[0{}^\circ \]

View Answer
32) Two satellites of earth, S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one of the following statements is true?

A)

The time period of S1 is four times that of S2

B)

The potential energies of earth and satellite in the two cases are equal

C)

S1 and S2 are moving with the same speed

D)

The kinetic energies of the two satellites are equal

View Answer
33) If the length of tube is less and cannot accommodate the maximum rise of liquid then

A)

liquid will form fountain

B)

liquid will not rise

C)

the meniscus will adjust itself so that the water does not spill

D)

none of the above

View Answer
34) In the circuit shown in the figure the potential difference between X and Y will be

A)

(a) zero

B)

20 V

C)

60 V

D)

120 V

View Answer
35) In which of the following systems will the radius of the first orbit (n = 1) be minimum?

A)

Deuterium atom

B)

Hydrogen atom

C)

Doubly ionized lithium

D)

Singly ionized helium

View Answer
36) In hydrogen atom spectrum, frequency of \[2.7\times {{10}^{15}}Hz\]of electromagnetic wave is emitted when transmission takes place from to 1. If it moves from 3 to 1, the frequency emitted will be

A)

\[3.2\times {{10}^{15}}Hz\]

B)

\[32\times {{10}^{15}}Hz\]

C)

\[1.6\times {{10}^{15}}Hz\]

D)

\[16\times {{10}^{15}}Hz\]

View Answer
37) In case of a forced vibration, the resonance wave becomes very sharp when the

A)

applied periodic force is small

B)

quality factor is small

C)

damping force is small

D)

restoring force is small

View Answer
38) Total internal reflection takes place

A)

when a ray moves from denser to rarer and incident angle is greater than critical angle

B)

when a ray moves from rarer to denser and incident angle is less than critical angle

C)

when a ray moves from rarer to denser and incident angle is equal to critical angle

D)

none of the above

View Answer
39) The density of newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be

A)

2 R

B)

4 R

C)

\[\frac{1}{4}\] R

D)

\[\frac{1}{2}\] R

View Answer
40) In a p- n junction photo cell, the value of the photo-electro motive force produced by monochromatic light is proportional to

A)

the barrier voltage at the p- n junction

B)

the intensity of the light falling on the cell

C)

the frequency of the light falling on the cell

D)

the voltage applied at the p- n junction

View Answer
41) A child is swinging a swing. Minimum and maximum heights of swing from earth's surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is

A)

5 m/s

B)

10 m/s

C)

15 m/s

D)

20 in/s

View Answer
42) Ozone layer in atmosphere is useful, because it

A)

stops ultraviolet radiation

B)

absorbs polluent gases

C)

stops green house effect

D)

stops increase in temperature of atmosphere

View Answer
43) In which type of material the magnetic susceptibility does not depend on temperature?

A)

Diamagnetic

B)

Paramagnetic

C)

Ferromagnetic

D)

Ferrite

View Answer
44) In compound X(n, \[\alpha \]) \[\to \] \[_{3}L{{i}^{7}},\], the element X is

A)

2He4

B)

5B10

C)

5B9

D)

4Be11

View Answer
45) A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 s for every circular lap- The average velocity and average speed for each circular lap respectively is

A)

0, 0

B)

0, 10 m/s

C)

10 m/s, 10 m/s

D)

10 m/s, 0

View Answer
46) A convex lens is dipped in a liquid whose refractive index is equal to the refractive index of the lens. Then its focal length will

A)

become small, but non- zero

B)

remain unchanged

C)

become zero

D)

become infinite

View Answer
47) A stationary particle explodes into two particles of masses m1 and m2 which move in opposite directions with velocities v1 and v2. The ratio of their kinetic energies E1 /E2 is

A)

1

B)

\[{{m}_{1}}{{v}_{2}}/{{m}_{2}}{{v}_{1}}\]

C)

\[{{m}_{2}}/{{m}_{1}}\]

D)

\[{{m}_{1}}/{{m}_{2}}\]

View Answer
48) Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 m from eye? The wavelength of light is 5000 A.

A)

2.32 m

B)

4.28 mm

C)

1.25 cm

D)

12.48 cm

View Answer
49) A sample of gas expands from volume V1 to V2. The amount of work done by the gas is greatest when the expansion is

A)

adiabatic

B)

isobaric

C)

isothermal

D)

equal in all above cases

View Answer
50) The degrees of freedom of a molecule of a triatomic gas are

A)

2

B)

4

C)

6

D)

8

View Answer
51) If the wavelength of photon is \[2.2\times {{10}^{-11}}m,h=6.6\times {{10}^{-34}}J-s,\] then momentum of photon is

A)

\[3\times {{10}^{-23}}kg\,m{{s}^{-1}}\]

B)

\[3.33\times {{10}^{22}}\,kg\,m{{s}^{-1}}\]

C)

\[1.452\times {{10}^{-44}}\,kg\,m{{s}^{-1}}\]

D)

\[6.89\times {{10}^{43}}\,kg\,m{{s}^{-1}}\]

View Answer
52) In a given atom no two electrons can have the same values for all the four quantum numbers. This is called

A)

Hund's rule

B)

Aufbau's principle

C)

Uncertainty principle

D)

Fault's exclusion principle

View Answer
53) Which of the following particle is emitted in the reaction? \[_{13}A{{l}^{27}}{{+}_{2}}H{{e}^{4}}{{\xrightarrow{{}}}_{14}}{{P}^{30}}+...\]

A)

\[_{0}{{n}^{1}}\]

B)

\[_{-1}{{e}^{0}}\]

C)

\[_{1}{{H}^{1}}\]

D)

\[_{1}{{H}^{2}}\]

View Answer
54) For reaction,\[2NOCl(g)2NO(g)+C{{l}_{2}}(g),\]\[{{K}_{c}}\]at \[427{{\,}^{o}}C\]is \[3\times {{10}^{-6}}L\,mo{{l}^{-1}}.\] The value of \[{{K}_{p}}\]is nearly

A)

\[7.5\times {{10}^{-5}}\]

B)

\[2.5\times {{10}^{-5}}\]

C)

\[2.5\times {{10}^{-4}}\]

D)

\[1.72\times {{10}^{-4}}\]

View Answer
55) What is the order of a reaction which has a rate expression \[rate=k{{(A)}^{3/2}}{{(B)}^{-1}}\]?

A)

3/2

B)

1/2

C)

0

D)

None of these

View Answer
56) Which compound is highest covalent?

A)

LiCI

B)

LiF

C)

LiBr

D)

Lil

View Answer
57) Shape of \[\text{Xe}{{\text{F}}_{\text{4}}}\]molecule is

A)

linear

B)

pyramidal

C)

tetrahedral

D)

square planar

View Answer
58) An aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is   dissolved will be

A)

18 L

B)

9L

C)

0.9 L

D)

1.8 L

View Answer
59) Which one of the following elements has the highest ionisation energy?

A)

\[[Ne]3{{s}^{2}}3{{p}^{1}}\]

B)

\[[Ne]3{{s}^{2}},3{{p}^{2}}\]

C)

\[[Ne]3{{s}^{2}}3{{p}^{3}}\]

D)

\[[Ar]3{{d}^{10}}\,4{{s}^{2}}4{{p}^{2}}\]

View Answer
60) Important ore of zinc is

A)

calamine

B)

cryolite

C)

cassiterite

D)

malachite

View Answer
61) A metal which is refined by polling is

A)

sodium

B)

blister copper

C)

zinc

D)

silver

View Answer
62) Nessler's reagent is

A)

\[KHg{{I}_{4}}\]

B)

\[{{K}_{2}}Hg{{I}_{4}}+N{{H}_{4}}OH\]

C)

\[[Ne]3{{s}^{2}}3{{p}^{3}}\]

D)

\[KHg{{I}_{4}}+N{{H}_{4}}OH\]

View Answer
63) A brown ring appears in the test for

A)

nitrate

B)

nitrite

C)

bromide

D)

iron

View Answer
64) Potassium is kept in

A)

alcohol

B)

water

C)

kerosene

D)

liquid ammonia

View Answer
65) Glauber salt is

A)

\[MgS{{O}_{4}}.{{H}_{2}}O\]

B)

\[CuS{{O}_{4}}.5{{H}_{2}}O\]

C)

\[FeS{{O}_{4}}.7{{H}_{2}}O\]

D)

\[N{{a}_{2}}S{{O}_{4}}.10{{H}_{2}}O\]

View Answer
66) The liquid field metal expanding on solidification is

A)

Ga

B)

Al

C)

Zn

D)

Cu

View Answer
67) Which of the following oxides of nitrogen is the anhydride of nitrous acid?

A)

NO

B)

\[{{N}_{2}}{{O}_{3}}\]

C)

\[{{N}_{2}}{{O}_{4}}\]

D)

\[{{N}_{2}}{{O}_{5}}\]

View Answer
68) Which one below is a pseudohalide?

A)

\[C{{N}^{-}}\]

B)

\[ICl\]

C)

\[I{{F}_{5}}\]

D)

\[I_{3}^{-}\]

View Answer
69) Which of the following gas mixture is used by the divers inside the sea?

A)

\[{{O}_{2}}+He\]

B)

\[{{O}_{2}}+{{X}_{e}}\]

C)

\[{{O}_{2}}+Ar\]

D)

\[{{O}_{2}}+{{N}_{2}}\]

View Answer
70) In which of the following metallic bond is strongest?

A)

Fe

B)

Sc

C)

V

D)

Cr

View Answer
71) Acidified potassium permanganate solution is decolourised by

A)

bleaching powder

B)

white vitripl

C)

Monies salt

D)

microcosmic salt

View Answer
72) The pressure and temperature of \[4\text{ }d{{m}^{3}}\] of carbon dioxide gas are doubled. Then volume of carbon dioxide gas would be

A)

\[2\,d{{m}^{3}}\]

B)

\[3\,d{{m}^{3}}\]

C)

\[4\,d{{m}^{3}}\]

D)

\[8\,d{{m}^{3}}\]

View Answer
73) An fee unit cell of aluminium contains the equivalent of how many atoms?

A)

1

B)

2

C)

3

D)

4

View Answer
74) Hess law deals with

A)

changes in heat of reaction

B)

rate of reaction

C)

equilibrium constant

D)

influence of pressure on volume of gas

View Answer
75) By adding 20 mL 0.1 N HCl to 20 mL 0.001 N KOH, the pH of the obtained solution will be

A)

2

B)

1.3

C)

0

D)

7

View Answer
76) Hydrolysis of sodium acetate will give

A)

acidic solution

B)

basic solution

C)

neutral solution

D)

normal solution

View Answer
77) Which of the following is not a non- electrolyte?

A)

Acetic acid

B)

Glucose

C)

Ethanol

D)

Urea

View Answer
78) When lead storage battery is charged

A)

lead dioxide dissolves

B)

sulphuric acid is regenerated

C)

the lead electrode becomes coated with lead sulphate

D)

the amount of sulphuric acid decrease

View Answer
79) The oxidation state of S in \[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]is

A)

+2

B)

+4

C)

+ 6

D)

+7

View Answer
80) The equation for Freundlich adsorption isotherm is

A)

\[\frac{x}{m}=k{{p}^{1/n}}\]

B)

\[x=mk{{p}^{1/n}}\]

C)

\[\frac{x}{m}=k{{p}^{-n}}\]

D)

all of these

View Answer
81) Example of intrinsic colloid is

A)

glue

B)

sulphur

C)

Fe

D)

\[A{{s}_{2}}{{S}_{3}}\]

View Answer
82) Which of the following free radicals is the most stable?

A)

Primary

B)

Methyl

C)

Secondary

D)

Tertiary

View Answer
83) Which of the following will have a most isomer also?

A)

2, 3-dichloropentane

B)

2, 3-dichlorobutane

C)

2-chlorobutane

D)

2-hydroxy propanoic acid

View Answer
84) The correct IUPAC name of the compound is

A)

4 methoxy-2- nitrobenzaldehyde

B)

4- formyl -3 nitro anisole

C)

4- methoxy -6- nitro benzladehyde

D)

2- formyi -5- methoxy nitrobenzene

View Answer
85) Which of the following has highest knocking property?

A)

Aromatic hydrocarbons

B)

Olefins

C)

Branched chain paraffins

D)

Straight chain paraffins

View Answer
86) Which of the following is the most stable alkene?

A)

\[{{R}_{2}}C=C{{R}_{2}}\]

B)

\[RCH=CHR\]

C)

\[RCH=C{{H}_{2}}\]

D)

\[C{{H}_{2}}=C{{H}_{2}}\]

View Answer
87) In which alkyl halide, \[{{S}_{N}}2\]mechanism is favoured maximum

A)

\[C{{H}_{3}}Cl\]

B)

\[C{{H}_{3}}C{{H}_{2}}Cl\]

C)

\[{{(C{{H}_{3}})}_{2}}CHCl\]

D)

\[{{(C{{H}_{3}})}_{3}}C-Cl\]

View Answer
88) In the following reaction 'A is

A)

\[{{C}_{2}}{{H}_{5}}C{{H}_{2}}CHO\]

B)

\[{{C}_{2}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}OH\]

C)

\[{{C}_{2}}{{H}_{5}}C{{H}_{2}}OH\]

D)

\[{{C}_{2}}{{H}_{5}}CHO\]

View Answer
89) From Williamson's synthesis preparation of which of the following is possible?

A)

Only symmetrical ethers

B)

Only asymmetrical ethers

C)

Both (a) and (b)

D)

None of the above

View Answer
90)

A)

B)

C)

D)

View Answer
91) Dry heating of calcium acetate gives

A)

acetaldehyde

B)

ethane

C)

acetic acid

D)

acetone

View Answer
92) Formaldehyde reacts with ammonia to give urotropine is

A)

\[{{(C{{H}_{2}})}_{6}}{{N}_{4}}\]

B)

\[{{(C{{H}_{2}})}_{4}}{{N}_{3}}\]

C)

\[{{(C{{H}_{2}})}_{6}}{{N}_{6}}\]

D)

\[{{(C{{H}_{2}})}_{3}}{{N}_{3}}\]

View Answer
93) The reagent which does not give acid chloride on treating with a carboxylic acid is

A)

\[PC{{l}_{5}}\]

B)

\[C{{l}_{2}}\]

C)

\[SOC{{l}_{2}}\]

D)

\[PC{{l}_{3}}\]

View Answer
94) Aniline react with acetaldehyde to form

A)

Schiffs base

B)

carbyl amine

C)

immine

D)

none of these

View Answer
95) Three dimensional molecules with cross links are formed in the case of a

A)

thermoplastic

B)

thermosetting plastic

C)

both (a) and (b)

D)

none of the above

View Answer
96) The reagent which forms crystalline osazone derivative when reacted with glucose, is

A)

Fehling solution

B)

phenyl hydrazine

C)

Benedict solution

D)

hydroxyl amine

View Answer
97) Insulin is

A)

an amino acid

B)

a protein

C)

a carbohydrate

D)

a lipid

View Answer
98) Which of the following polymer has ester linkage?

A)

Nylon-66

B)

PVC

C)

Terylene

D)

SBR

View Answer
99) Chloramine-T is a

A)

disinfectant

B)

antiseptic

C)

analgesic

D)

antipyretic

View Answer
100) Which one is disperse dye?

A)

Congo red

B)

Alizarin

C)

Celliton

D)

None of these

View Answer
101) Darwin?s finches provide excellent evidence in favour of organic evolution. These are related to which of the following evidences?

A)

Embryology

B)

Palaeontology (or fossils)

C)

Anatomy

D)

Biogeography(or geographic distribution)

View Answer
102) Relative Biological Effectiveness (RBE) usually refers to the damages caused by :

A)

low temperature

B)

high temperature

C)

radiation

D)

pollution

View Answer
103) Lysosomes are the reservoirs (store houses) of

A)

hydrolytic enzymes

B)

secretory glycoproteins

C)

RNA and protein

D)

fats (or sugars or ATP)

View Answer
104) The greatest biomass of autotrophs in the world?s oceans is that of

A)

benthic brown algae, coastal red algae and daphnids

B)

benthic diatoms and marine viruses

C)

sea grasses and slime molds

D)

free-floating micro-algae, cyanobacteria and nanoplankton

View Answer
105) For yielding one molecule of glucose the Calvin cycle turns

A)

two times

B)

four times

C)

six times

D)

eight times

View Answer
106) Industrial production of ethanol from starch is brought about by a certain species of

A)

Azotobacter

B)

Lactobacillus

C)

Saccharomyces

D)

Penicillium

View Answer
107) In most of the fungi, the food material is stored in the form of

A)

starch

B)

glucose

C)

sucrose

D)

glycogen

View Answer
108) Feed back inhibition of an enzymatic reaction is caused by

A)

substrate

B)

enzyme

C)

end product

D)

rise in temperature

View Answer
109) Geocarpic fruits are produced by :

A)

cannot

B)

onion

C)

ground nut

D)

watermelon

View Answer
110) The endangered largest living lemur Idriidri is inhabitant of

A)

Madagascar

B)

Mauritius

C)

Sri Lanka

D)

India

View Answer
111) Which one of the following is not a vestigial part in human?

A)

Coccyx

B)

Finger nails

C)

Third molar of each side in each jaw

D)

Segmental muscles of abdomen

View Answer
112) Small proteins produced by vertebrate cells naturally in response to viral infections and which inhibit multiplication of viruses are called

A)

immunoglobulin?s

B)

inter ferons

C)

antitoxins

D)

lipoproteins

View Answer
113) Black rust of wheat is caused by a member species of the genus

A)

Mucor

B)

Rhizopus

C)

Aspergillus

D)

Puccinia

View Answer
114) An institution where valuable plant material-likely to become irretrievably lost in the wild or in cultivation is preserved in a viable condition is known as

A)

genome

B)

gene library

C)

gene bank

D)

herbarium

View Answer
115) Among mammals, a significant role in the digestion of milk is played by

A)

rennin

B)

invertase

C)

amylase

D)

intestinal bacteria

View Answer
116) Which one of the following characters studied by Mendel in garden pea was found to be dominant ?

A)

Green seed colour

B)

Terminal flower position

C)

Green pod colour

D)

Wrinkled seed

View Answer
117) The replication of DNA is a pre- requisite for a eukaryotic cell to undergo division. During the cell cycle the DNA replicates in

A)

S phase

B)

\[{{G}_{1}}\] phase

C)

\[{{G}_{2}}\]phase

D)

M phase

View Answer
118) Which one of the following is correctly matched pair of the given secretion and its primary role in human physiology?

A)

Seburtise             -           Sexual attraction

B)

Sweat                   -           Thermoregulation

C)

Saliva                     -           Tasting food

D)

Tears                     -           Excretion of salts

View Answer
119) The function of copper T is to prevent

A)

fertilization

B)

egg maturation

C)

ovulation

D)

implantation of blastocyst

View Answer
120) Plasmids are suitable vectors for gene cloning because

A)

these are small circular DNA molecules which can integrate with host chromosomal DNA

B)

these are small circular DNA molecules with their own replication origin site

C)

these can shuttle between prokaryotic and eukaryotic cells

D)

these often carry antibiotic resistance genes

View Answer
121) As per geological time scale, hominids evolved during

A)

Miocene

B)

Pliocene

C)

Pleistocene

D)

Oligocene The family Hominids includes humans of today. These are the most intelligent of the hominoids. They are distinguished from the other families of hominoids in that they are bipedal i.e, they walk upright on two legs. Hominids appeared during Pliocene but modern human (Homo sapiens) are believed to have arisen about 150.000 years back during Pleistocene.

View Answer
122) Which one of the following correctly matches a Sexually Transmitted Disease (STD) with its pathogen?

A)

AIDS                                      ? Bacillus anthracis

B)

Syphilis                                 ? Treponemapallidum

C)

Urethritis                             ? Entamoebagingivalis

D)

Gonorrhoea                       ? Leishmaniadonovani

View Answer
123) ATP is a

A)

nucleotide

B)

nucleosome

C)

purine base

D)

nucleoside

View Answer
124) Removal of apical (terminal) bud of a flowering plant (or pruning of a flowering plant) leads to

A)

formation of new apical buds.

B)

formation of adventitious roots on the cut side

C)

early flowering(or stopping of floral growth)

D)

promotion of lateral branches

View Answer
125) Coconut milk (coconut water) is widely used in tissue culture because it contains

A)

auxins

B)

ethylene

C)

cytokinin

D)

gibberellins

View Answer
126) A research scholar once collected certain alga and found that its cells contained chlorophyll a, chlorophyll d and phycoerythrin. The alga must belong to

A)

Chlorophyceae

B)

Rhodopyceae

C)

Bacillariophyceae

D)

Cyanophyceae

View Answer
127) In a given plant, red colour (R) of fruits is dominant over white fruit (r); and tallness (T) is dominant over dwarfness (t). If a plant with genotype RRTt, is crossed with a plant of genotype rrtt what will be the percentage of tall plants with red fruits in the next generation?

A)

100%

B)

25%

C)

50%

D)

75%

View Answer
128) In an animal cell, protein synthesis takes place

A)

onlyon the ribosomes protein in the cytosol

B)

only on the ribosomes attached to nuclear envelope and endoplasmic reticulum

C)

on ribosomes present in the nucleolus as well as in cytoplasm

D)

on ribosomes present in the cytosol as well as in the mitochondria

View Answer
129) Anticodon is present on

A)

rRNA

B)

fRNA

C)

mtDNA

D)

mRNA

View Answer
130) Blastopore is the opening to the exterior of

A)

coelom

B)

coelenteron

C)

archentron

D)

blastocoel

View Answer
131) Fixation of one molecule of \[C{{O}_{2}}\]through Calvin cycle requires

A)

3 ATP and 3 \[\text{NADP}{{\text{H}}_{\text{2}}}\]molecules

B)

3 ATP and 2 \[\text{NADP}{{\text{H}}_{\text{2}}}\]molecules

C)

2 ATP and 1 \[\text{NADP}{{\text{H}}_{\text{2}}}\]molecule

D)

1 ATP and 2 \[\text{NADP}{{\text{H}}_{\text{2}}}\]molecules

View Answer
132) Movement of ions or molecules against the electrochemical gradient is called

A)

diffusion

B)

pinocytosis

C)

Brownian movement

D)

active transport

View Answer
133) The enteronephricnephridia of earthworms are mainly concerned with

A)

digestion

B)

respiration

C)

osmoregulation

D)

excretion of nitrogenous wastes

View Answer
134) Which one of the following is a skull bone?

A)

Coracoid

B)

Arytaenoid

C)

Atlas

D)

Pterygoid

View Answer
135) Which method out of the following renders the seed coat permeable to water so that embryo expansion is not physically retarded?

A)

Stratification

B)

Denudation

C)

Vernalisation

D)

Scarification

View Answer
136) Many scientists consider viruses as living entities because these

A)

respire

B)

can cause diseases

C)

reproduce (inside host)

D)

respond to tough environment

View Answer
137) Drosophila Hies with XXY genotype are females, but human beings with such genotype are abnormal males. It shows that

A)

Y-chromosome is essential for sex determination in Drosophila

B)

Y-chromosome is female determination in Drosophila

C)

Y-chromosome is male determining in human beings

D)

Y-chromosomehas no roleinsexdetermination either in Drosophila or in human beings

View Answer
138) Which one pair of parents out of the following is most likely get a child who would suffer from hemolytic disease of the new- born

A)

\[\text{R}{{\text{h}}^{+}}\]mother and\[R{{h}^{-}}\]father

B)

\[R{{h}^{-}}\]mother and\[R{{h}^{-}}\]father

C)

\[\text{R}{{\text{h}}^{+}}\]mother and\[\text{R}{{\text{h}}^{+}}\]father

D)

\[R{{h}^{-}}\]mother and\[\text{R}{{\text{h}}^{+}}\]father

View Answer
139) What is correct regarding leucocytes?

A)

These can squeeze out through (can cross)the capillary walls

B)

These are enucleate

C)

Sudden fall in their number indicates cancer

D)

These are produced in thymus

View Answer
140) RNA and DNA are similar in

A)

having similar sugars

B)

having similar pyrimidine bases

C)

being capable to replicate

D)

being polymers of nucleotides

View Answer
141) The length of one turn of the helix in a B- form DNA is approximately

A)

0.34 nm

B)

20 nm

C)

2 nm

D)

3.4 nm

View Answer
142) An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed because

A)

more potassium ions enter the axon as compared to sodium ions leaving it

B)

more sodium ions enter the axon as compared to potassium ions leaving it

C)

all potassium ions leave the axon

D)

all sodium ions enter the axon

View Answer
143) Melanocyte Stimulating Hormone (MSH) is produced by

A)

anterior pituitary

B)

posterior pituitary

C)

parsintermedia of pituitary

D)

parathyroid

View Answer
144) Which of the following is not a characteristic feature of all the chordates?

A)

Presence of coelom

B)

Pharyngeal gill clefts in the early embryonic stages

C)

A diaphragm that separates thorax from abdomen

D)

Dorsal nerve cord

View Answer
145) A common scent producing gland among mammals is

A)

anal gland

B)

prostate gland

C)

adrenal gland

D)

Bartholin?s gland

View Answer
146) Double fertilization (or triple fusion) leading to initiation of endosperm in angiosperms, requires

A)

fusion of 4 or more polar nuclei and the second male gamete only

B)

fusion of 2 polar nuclei and second male gamete only

C)

fusion of one polar nucleus and second male gamete only

D)

all the above type of fusions in different types of angiosperms

View Answer
147) A person suffering from the deficiency of the visual pigment rhodopsin is advised to take more of

A)

radish and potato

B)

apple and grapes

C)

carrot and ripe papaya

D)

guava and ripe banana

View Answer
148) Eight nucleate embryo sacs are

A)

always bisporic

B)

always tetrasporic

C)

always monosporic

D)

sometimes monosporic, sometines bisporic and sometimes tetrasporic

View Answer
149) Occurrence of endemic species in South America and Australia is due to

A)

extinction of these species from other regions

B)

continental separation

C)

absence of terrestrial route to these places

D)

retrogressive evolution

View Answer
150) Anemophilous type of pollination is found in

A)

Salvia

B)

Bottle brush

C)

Vallisneria

D)

Coconut

View Answer
151) Who was the first Indian ruler to face the Mahmud Ghaznavi?

A)

Prithviraj Chauhan

B)

King Jaipal

C)

Jaichand

D)

Firdausi

View Answer
152) The scientific study of birds is called

A)

Ethnology

B)

Ornithology

C)

Anthropology

D)

Onchology

View Answer
153) Which of the following taxes is not a source of revenue for the Union Government?

A)

Income tax

B)

Corporation tax

C)

Land revenue

D)

Customs duties

View Answer
154) The finance commission is appointed by the

A)

President

B)

Prime Minister

C)

Council of Ministers

D)

Parliament

View Answer
155) The famous Big Bang Theory is based on which of the following principles?

A)

Zeoman?s effect

B)

Doppler Effect

C)

De Broglie Theorem

D)

Principle of Thermodynamics

View Answer
156) Red blood corpuscles are formed in

A)

liver

B)

bone marrow

C)

kidneys

D)

blood vessels

View Answer
157) Yuan is the currency of

A)

China

B)

Indonesia

C)

Thailand

D)

Japan

View Answer
158) Agha Khan cup is associated with

A)

Hockey

B)

Football

C)

Cricket

D)

Badminton

View Answer
159) Nobel Prizes are distributed anunally at

A)

New York

B)

German

C)

Stockholm

D)

Rome

View Answer
160) Which of the following is not the main organ of the United Nations Organisation?

A)

General Assembly

B)

Trusteeship Council

C)

Security Council

D)

World Health Organisation

View Answer
161) Pick the odd one out.

A)

Sun

B)

Moon

C)

Mars

D)

Earth

View Answer
162) Pick the odd one out.

A)

Swim

B)

Run

C)

Dance

D)

Anticipate

View Answer
163) Fill in the blanks. 3, 6 , 6 , 12 ,9.....12

A)

18

B)

8

C)

22

D)

17

View Answer
164) Fill in the blanks. U, O, I, ? , A

A)

E

B)

C

C)

S

D)

G

View Answer
165) Fill in the blanks. D-4, F-6, H-8, ?, L-12

A)

J-10

B)

K -12

C)

M -14

D)

L- 10

View Answer
166) Who is the professor of Psychology?

A)

A

B)

B

C)

C

D)

D

View Answer
167) Who is the professor of Philosophy?

A)

D

B)

B

C)

C

D)

A

View Answer
168) Who is the wife of E?

A)

C

B)

D

C)

A

D)

B

View Answer
169) Who is the professor of Economics?

A)

A

B)

B

C)

C

D)

E

View Answer
170) Find the value of\[\sqrt{\frac{0.081\times 0.484}{0.0064\times 6.25}}\].

A)

0.81

B)

0.99

C)

64

D)

25

View Answer
171) The average of first 10 even numbers is

A)

10

B)

12.5

C)

9

D)

11

View Answer
172) 25% of x is same as 40% of y. The ratio x : y is

A)

8 : 5

B)

5 :3

C)

3 : 8

D)

5 :8

View Answer
173) A and B can finisha piece of work in16 days while A alone can do the same work in 24 day sin how many days can B alone complete the work ?

A)

56 days

B)

48 days

C)

36 days

D)

164 days

View Answer
174) If ?-? means ?x?, ?x? means ?+?, ?+? means and ?+? means then \[\text{4}0\times \text{12}+\text{3}-\text{6}+\text{6}0=?\]

A)

482.9

B)

16

C)

44

D)

4

View Answer
175) The diameter of a copper sphere is 6 cm. It is melted to form a wire of uniform cross-section. If the length of the wire is 36 cm then find the radius of the wire.

A)

0.5 cm

B)

1 m

C)

1.5 cm

D)

3.14 cm

View Answer
176) In each of the following questions, choose the correct antonym for the word given in capital letters. AMICABLE

A)

Cunning

B)

Shy

C)

Hostile

D)

Crazy

View Answer
177) In each of the following questions, choose the correct antonym for the word given in capital letters. CLARITY

A)

Exaggeration

B)

C and our

C)

Confusion

D)

Reserve

View Answer
178) In each of the following questions, choose the correct antonym for the word given in capital letters. OPULENT

A)

Wealthy

B)

Poor

C)

Sumptuous

D)

Drooping

View Answer
179) In each of the following questions, choose the correct antonym for the word given in capital letters. SANCTIFY

A)

Dedicate

B)

Patronise

C)

Venerate

D)

Pollute

View Answer
180) In each of the following questions, choose the correct synonym for the word given in capital letters. JOVIAL

A)

Merry

B)

Funny

C)

Smart

D)

Triumphant

View Answer
181) In each of the following questions, choose the correct synonym for the word given in capital letters. EXCERPT

A)

Extract

B)

Invitation

C)

Debate

D)

Speech

View Answer
182) In each of the following questions, choose the correct synonym for the word given in capital letters. ERADICATE

A)

Complicate

B)

Indicate

C)

Dedicate

D)

Eliminate

View Answer
183) In each of the following questions, choose the correct synonym for the word given in capital letters. OSTENTATIOUS

A)

Noisy

B)

Talkative

C)

Showy

D)

Wealthy

View Answer
184) In each of the following questions, choose the alternative which can be substituted for the given words/sentence. Study of mankind

A)

Pathology

B)

Physiology

C)

Philology

D)

Anthropology

View Answer
185) In each of the following questions, choose the alternative which can be substituted for the given words/sentence. Intentional destruction of racial groups

A)

Homicide

B)

Genocide

C)

Fratricide

D)

Regicide

View Answer
186) In each of the following questions, choose the alternative which can be substituted for the given words/sentence. One who is interested in the welfare of women

A)

Feminine

B)

Feminist

C)

Effeminate

D)

Flamboyant

View Answer
187) In each of the following questions, choose the alternative which can be substituted for the given words/sentence. Study of statistics of births, deaths, diseases to show the state of community

A)

Geography

B)

Anthropology

C)

Topography

D)

Demography

View Answer
188) In each of the following questions, choose the most suitable alternative to fill in the blank. The summit meeting provided him the much .....shot in the arm.

A)

required

B)

desired

C)

needed

D)

urgent

View Answer
189) In each of the following questions, choose the most suitable alternative to fill in the blank. If you drink too much, it will .....your judgment.

A)

obstruct

B)

impede

C)

impair

D)

hinder

View Answer
190) In each of the following questions, choose the most suitable alternative to fill in the blank. The government should provide attractive tax .....to create the market for quality goods.

A)

controls

B)

incentives

C)

revenues

D)

structures

View Answer
191) In each of the following questions, choose the most suitable alternative to fill in the blank. Each cause conditions a .....effect and there can be no cause without effect.

A)

specific

B)

relevant

C)

requisite

D)

proper

View Answer
192) In each of the following questions, re-arrange the given four parts P, Q, R and S to make a complete and meaningful sentence. (P) The management having agreed (Q) the workers called off the strike (R) to increase their wages (S) and returned to work

A)

PQRS

B)

PRQS

C)

RSQP

D)

SPQR

View Answer
193) In each of the following questions, re-arrange the given four parts P, Q, R and S to make a complete and meaningful sentence. The Bible, (P) has in many respects (Q) the sacred book of all Christians (R) among all the books of the world (S) a unique character and position

A)

QPSR

B)

QRPS

C)

RPQS

D)

RQPS

View Answer
194) In each of the following questions, re-arrange the given four parts P, Q, R and S to make a complete and meaningful sentence. The ultimate hope (P) will force the nations (Q) that the destructive nature of weapons (R) to give up war (S) has not been fulfilled

A)

PQRS

B)

PRQS

C)

QPRS

D)

RSQP

View Answer
195) In each of the following questions, re-arrange the given four parts P, Q, R and S to make a complete and meaningful sentence. (P) deserve all honour in society (Q) in doing their job well (R) men of conscience who take pride (S) whatever its nature

A)

PRSQ

B)

QRPS

C)

RQSP

D)

SPQR

View Answer
196) According to the passage, a journalist?s work includes

A)

writing

B)

news gathering

C)

sorting out the news

D)

all of the above

View Answer
197) What, according to the passage, is the common characteristic of all journalists?

A)

They all write for the newspapers

B)

They all have to first probe into the news they gather

C)

They all make an adventure to find a worthy news

D)

They all can forecast future news

View Answer
198) What is most important for a journalist?

A)

He must be able to interpret the new correctly

B)

He must know how to sort out the news

C)

He must be able to write effectively

D)

He must know how to gather the right news

View Answer
199) What does the passage say about successful journalists?

A)

They reject a major portion of the gathered news

B)

They can use a relatively small portion of the news

C)

Their news come from unexpected sources

D)

They present advance news

View Answer
200) What is the basic requisite for exclusive and exhaustive coverage of newspapers?

A)

Forecast of tomorrow?s news from today?s news

B)

Collecting the news of a ?real scoop?

C)

Selection of a small portion of the gathered news

D)

Effective style of writing

View Answer

Study Package

Buy Now

Solved papers for AFMC AFMC Solved Paper-2007

done AFMC Solved Paper-2007 Total Questions - 200

Study Package

AFMC Solved Paper-2007 Total Questions - 200