ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

Sr.#	Question	Answer
1	If the distance between two charges is doubled, the force between them will become:	A. Double B. Half C. Three times D. One fourth
2	The temperature scale approved in SI units is:	A. Celsius scale B. Kelvin scale C. Fehrenheit scale D. None of these
3	In which process the condition for the application of Boyle's law on the gas is fulfilled	A. isochoric process B. adiabatic process C. isothermal process D. none of them
4	A heat engine is that which converts	A. mechanical energy into thermal energy B. thermal energy into mechanical energy C. K.E into potential energy D. heat energy into light energy
5	An irreversible heat flow from a hot to cold substances of a system, causes the disorder to	A. decrease B. remains the same C. increase D. any one of them
6	The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at	A. 546 K B. 273 K C. 546°C D. 273°C
7	The motion of molecules in gases is:	A. Orderly B. Random C. Circular D. All of these
8	The example of reversible process is	A. an explosion B. changes occur suddenly C. slow compression of a gas D. all of them
9	For the working of a heat engine, there must be	A. a source of heat at high temperature B. a sink at low temperature C. both of them D. none of them
10	Adiabatic change occurs when the gas	A. expands B. compressed C. expands or compressed D. expands or compressed rapidly