Heat Transfer MCQ Quiz

What is heat transfer?

• Flow of thermal energy from low-temperature reservoir to high-temperature reservoir

• Flow of energy in the form of heat from high-temperature reservoir to low-temperature reservoir

• Flow of thermal energy irrespective of reservoir temperature

• None of the above

Which of the following is a method of heat transfer?

• Convection

• Radiation

• Conduction

• All of the mentioned

Heat transfer takes place according to which of the following law?

• Newton’s second law of motion

• First law of thermodynamics

• Newton’s law of cooling

• Second law of thermodynamics

Which of the following is the rate of heat transfer unit?

• Watt

• Pascal

• Joule

• Newton

Which of the following is an example of steady-state heat transfer?

• Electric bulb cools down by the surrounding atmosphere

• Chilling effect of cold wind on a warm body

• Boilers and turbines

• Cooling of I.C engine

In liquids and gases, heat transmission is primarily caused by

• Convection

• Radiation

• Conduction

• Conduction as well as convection

In which process, the rate of transfer of heat is maximum __________

• Conduction

• convection

• Radiation

• in all, heat is transferred with the same speed

The appropriate rate equation for convective heat transfer between a surface and adjacent fluid is prescribed by which law?

• Newton’s law of cooling

• Kirchhoff’s law

• Newton’s first law

• Wein’s displacement law

Radiation heat transfer is characterized by

• Movement of discrete packets of energy as electromagnetic waves

• Due to bulk fluid motion, there is a transport of energy

• There is the circulation of fluid by buoyancy effects

• Thermal energy transfer as vibrational energy in the lattice structure of the material

Which of the following is the unit of coefficient of radiant heat transfer?

• W/m2

• W/m K

• W/m2 K

• W/K