Engineering Thermodynamics MCQs

Question 1

The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).

Accepted Answer

More than

Answer

Less than

Answer

Equal to

Answer

None of these

Question 2

The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Accepted Answer

Flow processes

Answer

Non-flow processes

Answer

Adiabatic processes

Answer

None of these

Question 3

Which of the following is not the intensive property?

Accepted Answer

Heat

Answer

Pressure

Answer

Temperature

Answer

Density

Question 4

To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is

Accepted Answer

Multiplied by its molecular weight

Answer

Divided by its molecular weight

Answer

Multiplied by its density

Answer

Multiplied by its specific weight

Question 5

When the gas is heated at constant pressure, the heat supplied

Accepted Answer

Both (B) and (C)

Answer

Increases the internal energy of the gas

Answer

Increases the temperature of the gas

Answer

Does some external work during expansion

Question 6

When the gas is heated at constant volume, the heat supplied

Accepted Answer

Increases the internal energy of the gas and increases the temperature of the gas

Answer

Does some external work during expansion

Answer

Both (A) and (B)

Answer

None of these

Question 7

Kinetic theory of gases assumes that the collisions between the molecules are

Accepted Answer

Perfectly elastic

Answer

Perfectly inelastic

Answer

Partly elastic

Answer

Partly inelastic

Question 8

The ultimate analysis of coal consists of the determination of the percentage of

Accepted Answer

All of these

Answer

Carbon

Answer

Hydrogen and nitrogen

Answer

Sulphur and ash

Question 9

Which of the following is the lightest and most volatile liquid fuel?

Accepted Answer

Gasoline

Answer

Kerosene

Answer

Fuel oil

Answer

None of these