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question_answer1)
A cam with a roller follower would constitute following type of pair
A)
lower pair done
clear
B)
higher pair done
clear
C)
open pair done
clear
D)
close pair done
clear
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question_answer2)
In most machine members, the damping capacity of the material should be
A)
low done
clear
B)
zero done
clear
C)
high done
clear
D)
could be anything done
clear
E)
None of the above done
clear
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question_answer3)
According to I.S. specification, 100 H6g5 means that
A)
tolerance grade for the hole is 6 and for the shaft is 5 done
clear
B)
tolerance grade for the shaft is 6 and for the hole is 5 done
clear
C)
tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7 done
clear
D)
tolerance grade for the hole is 4 to 8 for the shaft is 3 to 7 done
clear
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question_answer4)
Gears are casted by
A)
sand mould casting done
clear
B)
slush casting done
clear
C)
permanent mould casting done
clear
D)
centrifugal casting done
clear
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question_answer5)
If the controlling force of a governor increases within crease in speed, the governor is said to be
A)
sensitive done
clear
B)
insensitive done
clear
C)
isochronous done
clear
D)
powerful done
clear
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question_answer6)
Kinematic pairs are those which have
A)
point or line contact between the two elements when in motion done
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B)
surface contact between the two elements when in motion done
clear
C)
elements of pairs not held together mechanically done
clear
D)
two elements that permit relative motion done
clear
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question_answer7)
A porter governor could be classified as could be classified as
A)
inertia type governor done
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B)
pendulum type governor done
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C)
centrifugal type governor done
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D)
dead weight type governor done
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question_answer8)
Lower pairs are those which have
A)
point or line contact between the two elements when in motion done
clear
B)
surface contact between the two elements when in motion done
clear
C)
elements of pairs not held together mechanically done
clear
D)
two elements that permit relative motion done
clear
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question_answer9)
Pulley in a belt drive acts as
A)
cylindrical pair done
clear
B)
turning pair done
clear
C)
rolling pair done
clear
D)
sliding pair done
clear
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question_answer10)
Taper on the cotter and slot is provided
A)
on both the sides done
clear
B)
on one side only done
clear
C)
on none of the sides done
clear
D)
may be provided anywhere done
clear
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question_answer11)
Rankine's theory of failure is applicable for following type of materials
A)
brittle done
clear
B)
ductile done
clear
C)
elastic done
clear
D)
plastic done
clear
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question_answer12)
A steel containing 0.85% carbon is known as
A)
eutectoid steel done
clear
B)
hyper-eutectoid steel done
clear
C)
hypo-eutectoid steel done
clear
D)
None of the above done
clear
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question_answer13)
Length of cross belt, in addition to centre length, depends
A)
only on the sum of the radii of pulleys done
clear
B)
on the sum and differance of the radii of tins pulleys done
clear
C)
square of difference of radii of the pulleys done
clear
D)
square of sum of radii of pulleys done
clear
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question_answer14)
The approximate straight line mechanism is a
A)
four bar linkage done
clear
B)
6 bar linkage done
clear
C)
8 bar linkage done
clear
D)
3 bar linkage done
clear
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question_answer15)
The coriolis component of acceleration leads the sliding velocity by
A)
\[45{}^\circ \] done
clear
B)
\[90{}^\circ \] done
clear
C)
\[135{}^\circ \] done
clear
D)
\[180{}^\circ \] done
clear
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question_answer16)
In composite or reverse laid ropes
A)
direction of twist of wires in strands is opposite to the direction of twist of strands done
clear
B)
direction of twist of wires and strands are same done
clear
C)
wires in two adjacent strands are twisted in opposite direction done
clear
D)
wires are not twisted done
clear
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question_answer17)
Which of the following is not correct procedure to increase the fatigue limit?
A)
Cold working done
clear
B)
Shot peening done
clear
C)
Surface decarburisation done
clear
D)
Under-stressing done
clear
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question_answer18)
Belt slip may occur due to
A)
heavy load done
clear
B)
loose belt done
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C)
driving pulley too small done
clear
D)
All of the above done
clear
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question_answer19)
The term "effort of governor" refers to
A)
centrifugal force of balls done
clear
B)
useful power developed done
clear
C)
force acting on sleeve for given % change of speed done
clear
D)
minimum force required on sleeve for % change of speed done
clear
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question_answer20)
Cam angle is defined as the angle
A)
during which the follower returns to its initial position done
clear
B)
of rotation of the cam for a definite displacement of the follower done
clear
C)
through which the cam rotates during the period in which the follower remains in the highest position done
clear
D)
moved by the cam from the instant the follower begins to rise, till it reaches its highest position done
clear
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question_answer21)
When two springs are in series (having stiffness K), the equivalent stiffness will be
A)
K done
clear
B)
K/2 done
clear
C)
2KL done
clear
D)
K/4 done
clear
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question_answer22)
In the case of an elastic bar fixed at upper end loaded by a falling weight at lower end, the shock olad produced can be decreased by
A)
decreasing the cross-section area of bar done
clear
B)
increasing the cross-section area of bar done
clear
C)
remain unaffected with cross-section area done
clear
D)
would depend upon other factors done
clear
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question_answer23)
Length of open belt, in addition to centre length, depends
A)
only on the sum of the radii of pulleys done
clear
B)
on the sum and difference of the radii of the pulleys done
clear
C)
square of difference of radii of pulleys done
clear
D)
square of sum of radii of pulleys done
clear
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question_answer24)
Which one of the following is a criterion in the design of hydrodynamic journal bearings?
A)
Sommer field number done
clear
B)
Rating life done
clear
C)
Specific dynamic capacity done
clear
D)
Rotation factor done
clear
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question_answer25)
Which of the following bearing is suitable for fluctuating demands?
A)
Needle roller bearing done
clear
B)
Ball bearing done
clear
C)
Tapered bearing done
clear
D)
Cylindrical bearing done
clear
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question_answer26)
Which of the following is a positive locking device?
A)
Castled nut done
clear
B)
Locking by pin done
clear
C)
Locking by threaded pin done
clear
D)
Split nut done
clear
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question_answer27)
Deep groove ball bearings are used for
A)
heavy thrust load only done
clear
B)
small angular displacement of shafts done
clear
C)
radial load at high speed done
clear
D)
combined thrust and radial loads at high speed done
clear
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question_answer28)
Which of the following key is under compression rather than in being shear when under load?
A)
Saddle done
clear
B)
Barth done
clear
C)
Feather done
clear
D)
Kennedy done
clear
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question_answer29)
Which of the following is maximum capacity bearing?
A)
Filling notch bearing done
clear
B)
Single row bearing done
clear
C)
Angular contact bearing done
clear
D)
Self-aligning bearing done
clear
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question_answer30)
A kinematic pair consists of which of the following:
A)
two elements that permit relative motion done
clear
B)
two elements that are connected to each other done
clear
C)
two elements that do not permit relative motion done
clear
D)
None of these done
clear
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question_answer31)
A link that connects double slider crank chain fraces the path of which of the following shape?
A)
an elliptical path done
clear
B)
a circular path done
clear
C)
a straight path done
clear
D)
a hyperbolic path done
clear
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question_answer32)
Universal joint is an example of which of the following type of pair:
A)
Higher pair done
clear
B)
Lower pair done
clear
C)
Rolling pair done
clear
D)
None of these done
clear
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question_answer33)
Which of the following pair, a ball and socket joint forms?
A)
Spherical pair done
clear
B)
Rolling pair done
clear
C)
Turning pair done
clear
D)
Sliding pair done
clear
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question_answer34)
The safe rim velocity of a flywheel is influenced by:
A)
Mass of the flywheel done
clear
B)
energy fluctuation done
clear
C)
centrifugal stresses done
clear
D)
speed fluctuation done
clear
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question_answer35)
Porter governor is a:
A)
Pendulum type governor done
clear
B)
Dead weight type governor done
clear
C)
Spring loaded type governor done
clear
D)
Inertia type governor done
clear
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question_answer36)
In case of an isochronous governor, the value of sensitivity is:
A)
infinity done
clear
B)
zero done
clear
C)
one done
clear
D)
None of these done
clear
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question_answer37)
Which one of the following governors cannot be isochronous?
A)
Hartnell done
clear
B)
Porter done
clear
C)
Watt done
clear
D)
Hartung done
clear
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question_answer38)
The size of the cam depends upon:
A)
Base circle done
clear
B)
Pitch circle done
clear
C)
Prime circle done
clear
D)
None of these done
clear
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question_answer39)
Cam used for low and moderate speed engines should move with:
A)
uniform velocity done
clear
B)
Harmonic motion done
clear
C)
uniform acceleration done
clear
D)
cycloidal motion done
clear
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question_answer40)
For a simple harmonic motion of a cam follower, a cosine curve shows :
A)
acceleration diagram done
clear
B)
displacement diagram done
clear
C)
velocity diagram done
clear
D)
All of the above done
clear
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question_answer41)
The outer circle of spur gear is called:
A)
pitch circle done
clear
B)
base circle done
clear
C)
addendum circle done
clear
D)
dedeundum circle done
clear
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question_answer42)
Creep in a belt occurs due to:
A)
uneven contraction and extension of the belt done
clear
B)
weak material of the pulley done
clear
C)
weak material of the belt done
clear
D)
improper crowning done
clear
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question_answer43)
If in case of disc clutch,\[{{N}_{1}}\]= Number of discs on driving shaft \[{{N}_{2}}\]= Number of discs on driving shaft then, number of pairs of contact surfaces will be:
A)
\[{{N}_{1}}-{{N}_{2}}+1\] done
clear
B)
\[{{N}_{1}}-{{N}_{2}}-1\] done
clear
C)
\[{{N}_{1}}+{{N}_{2}}+1\] done
clear
D)
\[{{N}_{1}}+{{N}_{2}}-1\] done
clear
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question_answer44)
Which of the following clutches is positive type?
A)
jaw done
clear
B)
cone done
clear
C)
disc done
clear
D)
centrifugal done
clear
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question_answer45)
The included angle of V - belt is generally:
A)
\[10{}^\circ -20{}^\circ \] done
clear
B)
\[20{}^\circ -30{}^\circ \] done
clear
C)
\[30{}^\circ -40{}^\circ \] done
clear
D)
\[40{}^\circ -50{}^\circ \] done
clear
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question_answer46)
The diamond riveting is utilized for:
A)
structural work done
clear
B)
boiler work done
clear
C)
both structural and boiler work done
clear
D)
None of these done
clear
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question_answer47)
A rivet is specified by:
A)
shank diameter done
clear
B)
type of load done
clear
C)
length of rivet done
clear
D)
None of these done
clear
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question_answer48)
Which of the following type of material, the rivets are made?
A)
brittle done
clear
B)
ductile done
clear
C)
high density done
clear
D)
None of these done
clear
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question_answer49)
Lewis equation in case of gears is used to find the:
A)
Bending stress done
clear
B)
Tensile stress done
clear
C)
compressive stress done
clear
D)
All of these done
clear
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question_answer50)
Which type of teeth are normally used and satisfy law of gearing?
A)
conjugate teeth done
clear
B)
cycloidal teeth done
clear
C)
involute teeth done
clear
D)
All of these done
clear
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