Modes of Heat Transfer

Q. In which of the following processes no medium is required for heat transfer?

1. Conduction
2. Convection
3. Radiation
4. Advection

Q.

Define the following term.

Conduction.

Q.

Define conduction. What is a necessary condition for conduction?

Q. What is the meaning of insolation?

1. Incoming solar radiation
2. Outgoing solar radiation
3. Increase in temperature
4. Decrease in temperature

Q.

Do electromagnetic radiations require a medium to travel?

Q. How is the heat budget of the Earth maintained?

1. With the balance of solar radiation between advection and conduction.
2. With balance of solar radiation between insolation and terrestrial radiation.
3. With the balance of solar radiation between advection and insolation.
4. With the balance of solar radiation between convection and conduction.

Q.

What is convection?

Q.

In solids transfer of heat occurs through

1. convection

2. conduction

3. radiation

4. vibration

Q.

Define: Temperature.

Q.

Define the term Temperature?

Q. is a measure of the warmth of an object expressed in terms of Celsius or Fahrenheit.

1. Radiation
2. Temperature
3. Heat

Q.

The Biggest Source of Energy on Earth’s Surface Is (a) Biomass (B) Solar Radiation (C) Tides (D) Winds

Q. What is conduction?

1. The mechanism of transfer of heat between two adjacent parts of a body because of same temperature.
2. The mechanism of transfer of heat between two adjacent parts of a body because of difference in humidity.
3. The mechanism of transfer of heat between two adjacent parts of a body because of their temperature difference.
4. The mechanism of transfer of energy between two adjacent parts of a body because of their difference in state.

Q. Terrestrial radiation that reaches outer space from the Earth's surface have short wavelength.

1. True
2. False

Q.

Define temperature. Give its SI unit.

Q. Temperature is a measure of the warmth or coldness of an object expressed in terms of _________.

1. Celsius
2. Fahrenheit
3. Metres
4. Kilogram

Q.

What is meant by temperature of an object?

Q.

1. The transfer of heat through vertical movement of air is called advection.
2. Horizontal movement of the air is relatively more important than the vertical movement for the heating and cooling of the atmosphere.
3. Seasonal local wind ‘Loo’ is the outcome of the advection process.

Which of the above statements is/are correct?

1. 3
2. 1
3. 1 and 2 only
4. 2 and 3 only

Q. Solar radiation can travel in vacuum and it gets transferred in the form of which wave?

1. Shortwave
2. Longwave
3. Terrestrial wave
4. Electromagnetic

Q. Choose the correct pair.

1. Conduction
2. Convection
3. Bulk transport
4. Vacuum
5. Direct contact
6. Radiation

Q. Advection is similar to which mode of heat transfer?

1. Evaporation
2. Conduction
3. Radiation
4. Convection