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question_answer1)
On the Celsius scale the absolute zero of temperature is at [CBSE PMT 1994]
A)
0°C done
clear
B)
? 32°C done
clear
C)
100°C done
clear
D)
? 273.15°C done
clear
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question_answer2)
Oxygen boils at ? 183°C. This temperature is approximately [CPMT 1992]
A)
215°F done
clear
B)
? 297°F done
clear
C)
329°F done
clear
D)
361°F done
clear
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question_answer3)
Recently, the phenomenon of superconductivity has been observed at 95 K. This temperature is nearly equal to [CPMT 1990]
A)
? 288°F done
clear
B)
? 146°F done
clear
C)
? 368°F done
clear
D)
+178°F done
clear
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question_answer4)
The temperature of a substance increases by 27°C. On the Kelvin scale this increase is equal to [CPMT 1993]
A)
300 K done
clear
B)
2.46 K done
clear
C)
27 K done
clear
D)
7 K done
clear
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question_answer5)
The resistance of a resistance thermometer has values 2.71 and 3.70 ohm at 10°C and 100°C. The temperature at which the resistance is 3.26 ohm is [CPMT 1994]
A)
40°C done
clear
B)
50°C done
clear
C)
60°C done
clear
D)
70°C done
clear
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question_answer6)
No other thermometer is as suitable as a platinum resistance thermometer to measure temperature in the entire range of [MNR 1993]
A)
0°C to 100°C done
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B)
100°C to 1500°C done
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C)
? 50°C to +350°C done
clear
D)
? 200°C to 600°C done
clear
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question_answer7)
The temperature of the sun is measured with [Pb. PMT 1998; CPMT 1998; Pb. PET 1997, 2001]
A)
Platinum thermometer done
clear
B)
Gas thermometer done
clear
C)
Pyrometer done
clear
D)
Vapour pressure thermometer done
clear
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question_answer8)
Absolute temperature can be calculated by [AFMC 1994]
A)
Mean square velocity done
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B)
Motion of the molecule done
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C)
Both A and B done
clear
D)
None of the above done
clear
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question_answer9)
Thermoelectric thermometer is based on [CPMT 1993, 95; AFMC 1998]
A)
Photoelectric effect done
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B)
Seeback effect done
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C)
Compton effect done
clear
D)
Joule effect done
clear
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question_answer10)
Maximum density of \[{{H}_{2}}O\] is at the temperature [CPMT 1996; Pb. PMT 1996]
A)
32°F done
clear
B)
39.2°F done
clear
C)
42°F done
clear
D)
4°F done
clear
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question_answer11)
The study of physical phenomenon at low temperatures (below liquid nitrogen temperature) is called [CPMT 1992]
A)
Refrigeration done
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B)
Radiation done
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C)
Cryogenics done
clear
D)
Pyrometry done
clear
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question_answer12)
?Stem Correction? in platinum resistance thermometers are eliminated by the use of [AIIMS 1998]
A)
Cells done
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B)
Electrodes done
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C)
Compensating leads done
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D)
None of the above done
clear
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question_answer13)
The absolute zero is the temperature at which [AIIMS 1998]
A)
Water freezes done
clear
B)
All substances exist in solid state done
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C)
Molecular motion ceases done
clear
D)
None of the above done
clear
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question_answer14)
Absolute scale of temperature is reproduced in the laboratory by making use of a [SCRA 1998]
A)
Radiation pyrometer done
clear
B)
Platinum resistance thermometer done
clear
C)
Constant volume helium gas thermometer done
clear
D)
Constant pressure ideal gas thermometer done
clear
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question_answer15)
Absolute zero (0 K) is that temperature at which [AFMC 1993]
A)
Matter ceases to exist done
clear
B)
Ice melts and water freezes done
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C)
Volume and pressure of a gas becomes zero done
clear
D)
None of these done
clear
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question_answer16)
On which of the following scales of temperature, the temperature is never negative [EAMCET 1997]
A)
Celsius done
clear
B)
Fahrenheit done
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C)
Reaumur done
clear
D)
Kelvin done
clear
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question_answer17)
The temperature on Celsius scale is 25°C. What is the corresponding temperature on the Fahrenheit scale [AFMC 2001]
A)
40°F done
clear
B)
77°F done
clear
C)
50°F done
clear
D)
45°F done
clear
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question_answer18)
One quality of a thermometer is that its heat capacity should be small. If P is a mercury thermometer, Q is a resistance thermometer and R thermocouple type then [CPMT 1997]
A)
P is best, R worst done
clear
B)
R is best, P worst done
clear
C)
R is best, Q worst done
clear
D)
P is best, Q worst done
clear
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question_answer19)
Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky [AFMC 1997]
A)
The temperature recorded by both will be same done
clear
B)
The temperature recorded by wet-bulb thermometer will be greater than that recorded by the other done
clear
C)
The temperature recorded by dry-bulb thermometer will be greater than that recorded by the other done
clear
D)
None of the above done
clear
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question_answer20)
The temperature of a body on Kelvin scale is found to be x K. When it is measured by Fahrenheit thermometer, it is found to be x°F, then the value of x is [UPSEAT 2000; Pb. CET 2004]
A)
40 done
clear
B)
313 done
clear
C)
574.25 done
clear
D)
301.25 done
clear
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question_answer21)
A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers 140°. What is the fall in temperature as registered by the Centigrade thermometer [CBSE PMT 1992; AIIMS 1998]
A)
30° done
clear
B)
40° done
clear
C)
60° done
clear
D)
80° done
clear
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question_answer22)
At what temperature the centigrade (Celsius) and Fahrenheit, readings are the same [RPMT 1997, 99, 2003; BHU 1997; MNR 1992; DPMT 1998; CPMT 1995; UPSEAT 1999; KCET 2000]
A)
? 40° done
clear
B)
+ 40° done
clear
C)
36.6° done
clear
D)
? 37° done
clear
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question_answer23)
Standardisation of thermometers is obtained with [CPMT 1996]
A)
Jolly?s thermometer done
clear
B)
Platinum resistance thermometer done
clear
C)
Thermocouple thermometer done
clear
D)
Gas thermometer done
clear
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question_answer24)
The gas thermometers are more sensitive than liquid thermometers because [CPMT 1993]
A)
Gases expand more than liquids done
clear
B)
Gases are easily obtained done
clear
C)
Gases are much lighter done
clear
D)
Gases do not easily change their states done
clear
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question_answer25)
Mercury thermometers can be used to measure temperatures upto [CBSE PMT 1992, 96; BHU 1998; UPSEAT 1998]
A)
100°C done
clear
B)
212°C done
clear
C)
360°C done
clear
D)
500°C done
clear
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question_answer26)
A constant volume gas thermometer shows pressure reading of 50cm and 90cm of mercury at 0°C and 100°C respectively. When the pressure reading is 60 cm of mercury, the temperature is [MNR 1991; UPSEAT 2000; Pb. CET 2004]
A)
25°C done
clear
B)
40°C done
clear
C)
15°C done
clear
D)
12.5°C done
clear
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question_answer27)
Mercury boils at 367°C. However, mercury thermometers are made such that they can measure temperature up to 500°C. This is done by [CPMT 2004]
A)
Maintaining vacuum above mercury column in the stem of the thermometer done
clear
B)
Filling nitrogen gas at high pressure above the mercury column done
clear
C)
Filling nitrogen gas at low pressure above the mercury level done
clear
D)
Filling oxygen gas at high pressure above the mercury column done
clear
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question_answer28)
A device used to measure very high temperature is [KCET 1998]
A)
Pyrometer done
clear
B)
Thermometer done
clear
C)
Bolometer done
clear
D)
Calorimeter done
clear
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question_answer29)
The absolute zero temperature in Fahrenheit scale is [DCE 1996]
A)
? 273°F done
clear
B)
? 32°F done
clear
C)
? 460°F done
clear
D)
? 132°F done
clear
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question_answer30)
A constant pressure air thermometer gave a reading of 47.5 units of volume when immersed in ice cold water, and 67 units in a boiling liquids. The boiling point of the liquid will be [AIIMS 1994]
A)
135°C done
clear
B)
125°C done
clear
C)
112°C done
clear
D)
100°C done
clear
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question_answer31)
If a thermometer reads freezing point of water as 20°C and boiling point as 150°C, how much thermometer read when the actual temperature is 60°C [AFMC 2004]
A)
98°C done
clear
B)
110°C done
clear
C)
40°C done
clear
D)
60°C done
clear
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question_answer32)
If temperature of an object is 140°F, then its temperature in centigrade is [RPMT 1999]
A)
105°C done
clear
B)
32°C done
clear
C)
140°C done
clear
D)
60°C done
clear
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question_answer33)
Of the following thermometers, the one which can be used for measuring a rapidly changing temperature is a [CPMT 1992]
A)
Thermocouple thermometer done
clear
B)
Gas thermometer done
clear
C)
Maximum resistance thermometer done
clear
D)
Vapour pressure thermometer done
clear
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question_answer34)
On centigrade scale the temperature of a body increases by 30 degrees. The increase in temperature on Fahrenheit scale is [UPSEAT 2005]
A)
50° done
clear
B)
40° done
clear
C)
30° done
clear
D)
54° done
clear
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question_answer35)
The correct value of 0°C on Kelvin scale will be [RPMT 1999]
A)
273.15 K done
clear
B)
273.00 K done
clear
C)
273.05 K done
clear
D)
273.63 K done
clear
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