A. MLT
B. ML-1T-1
C. ML-1T-2
D. ML-2T-2
✅ The correct answer is option C.
Heat and Thermodynamics MCQs
2. Temperature is a property which determines
A. How much heat a body contains
B. Whether a body will feel hot or cold to touch
C. In which direction heat will flow between two systems
D. How much total absolute energy a body has
✅ The correct answer is option C.
3. We prefer mercury as a thermometric substance because
A. Over a wide range of temperature, its expansion is uniform
B. It does not stick to thermometer glass
C. It opaque to light
D. All of above
✅ The correct answer is option D.
4. The scales of temperature are based on two fixed points which are
A. The temperatures of water at 0° 100°C
B. The temperature of melting ice and boiling water at atmospheric pressure
C. The temperatures of ice cold and boiling water
D. The temperatures of frozen and boiling mercury
✅ The correct answer is option B.
5. The numerical value of Boltzmann’s constant is
A. 1.38×10-31JK-1
B. 3.18×10-31JK-1
C. 3.18×10-23JK-1
D. 1.38×10-23JK-1
✅ The correct answer is option D.
6. In a clinical thermometer, the mercury in the capillary tube does not contract once removed from the patient because
A. Mercury takes a long time to contract
B. The amount of mercury use is very small
C. The capillary tube has a small constriction near the bulb
D. The capillary tube is very narrow
✅ The correct answer is option C.
7. Normal human body temperature 98.6°F corresponds to
A. 37°C
B. 42°C
C. 55°C
D. 410°C
✅ The correct answer is option A.
8. The Fahrenheit and centigrade scales agree to
A. 40
B. 15.5
C. 542
D. 273
✅ The correct answer is option A.
9. The size of one degree of Celsius is equal to
A. One degree of Fahrenheit scale
B. 1.8 degrees of Fahrenheit scale
C. 3.2 degrees of Fahrenheit scale
D. 2.12 degrees of Fahrenheit scale
✅ The correct answer is option B.
10. At constant temperature the graph between V and 1/P is
A. Hyperbola
B. Parabola
C. A curve of any shape
D. A straight lime
✅ The correct answer is option D.