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Heat

Description: Heat HeatFundamentals of Heat
Number of Questions: 15
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Tags: Heat Fundamentals of Heat
Attempted 0/15 Correct 0 Score 0

The SI unit of heat is

  1. Joule

  2. Calorie

  3. Kelvin

  4. Celsius

  5. None of these


Correct Option: A

Heat is considered as the form of

  1. fluid

  2. mass

  3. matter

  4. energy

  5. none of these


Correct Option: D

The heat always flows from

  1. higher temperature to lower temperature

  2. lower temperature to higher temperature

  3. equal temperature

  4. all of these

  5. none of these


Correct Option: A

The most important naturally occurring source of heat is

  1. Sun

  2. Stars

  3. Moon

  4. Earth

  5. Pluto


Correct Option: A

What is the normal temperature of human body?

  1. 45°C

  2. 37°C

  3. 29°C

  4. 35°C


Correct Option: B

The freezing point of mercury is

    • 12°C
    • 30°C
  1. 42°C

    • 39°C

Correct Option: D

Which of the following is not an ideal place for using a mercury thermometer?

  1. London

  2. North Pole

  3. Sun

  4. New York

  5. All of these


Correct Option: C

Which of the following formulae is correct for converting Celsius temperature into Kelvin temperature?

  1. K = °C + 273

  2. C = K + 273

  3. °C + K = 273

  4. K = °C - 273


Correct Option: A

A thermos flask prevents

  1. conduction

  2. radiation

  3. convection

  4. conduction, convection and radiation

  5. none of these


Correct Option: D

What is the value of melting point of ice?

  1. 273°C

  2. 0°C

  3. � 273°C

  4. � 5°C

  5. � 10°C


Correct Option: B

Which liquid is used in a laboratory thermometer?

  1. Alcohol

  2. Water

  3. Ether

  4. Mercury

  5. None of these


Correct Option: D

Which of the following is not true for temperature?

  1. It is degree of hotness or coldness of body

  2. It is measured in Kelvin

  3. It is measured by barometer

  4. All of these

  5. None of these


Correct Option: C

The value of 5°C in Fahrenheit will be

  1. 39°F

  2. 41°F

  3. 56°F

  4. 5°F


Correct Option: B

In solids, the head transfers by the process of

  1. convection

  2. conduction

  3. radiation

  4. evaporation

  5. none of these


Correct Option: B

Which of the following devices is used for the measurement of temperature?

  1. Manometer

  2. Hydrometer

  3. Barometer

  4. Thermometer

  5. None of these


Correct Option: D
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