Question # 1

Which one is true for isothermal process.

Choose an answer

Q = 0

W = 0

Q = W(D) Delta U = 0

None of these

A device based upon the thermodynamics property of matter is called.

Choose an answer

Calorimeter

Heat engine

thermometer

Voltmeter

For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes.

Choose an answer

Double

Three fold

One half

Remains the same

The unit o pressure of gas is

Choose an answer

Nm^-2

Pascal

Atmosphere

All of these

A Carnot engine has an efficiency of 50% when its sink temperature is at 27 ^oC. The temperature of source.

Choose an answer

273^oC

300 ^oC

327 ^oC

373 ^oC

First law of thermodynamics can be defined by the equation

Choose an answer

During adiabatic process, which factor remains constant.

Choose an answer

Entropy

Pressure

Momentum

Power

Carnot cycle consists of.

Choose an answer

Two steps

Three steps

Four steps

Five steps

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

Choose an answer

38%

63%

80%

90%

Which remains constant in an adiabatic process.

Choose an answer

Volume

Pressure

entropy

temperature

Efficiency of a heat engine working between 27 ^oC and 32 ^oC will be.

Choose an answer

50%

90%

40%

62%

More Classes

Other Links

Physics English Medium Fsc Part 1 Chapter 11 Online MCQs Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer