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	Heat travels through vacuum by	A. Conduction B. Convection C. Radiation D. Both A and B
2	The efficiency of petrol engine is usually not more than 25% to 30% because of	A. friction B. heat losses C. both of them D. none of them
3	A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called	A. reversible process B. irreversible process C. any one of them D. none of them
4	In a heat engine, heat is supplied by the	A. cold reservoir B. sink C. hot reservoir D. none of them
5	The behaviour of gases is well accounted by the kinetic theory based on	A. microscopic approach B. macroscopic approach C. both of them D. none of them
6	Generally a temperature scale is established by	A. one fixed point B. two fixed point C. three fixed point D. four fixed point
7	The rate of change of momentum of a molecule is equal to:	A. Pressure B. Work C. Density D. Force
8	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
9	While deriving equation of pressure by kinetic theory of gases, we take into account:	A. Only linear motion of molecules B. Only rotational motion C. Only vibratory motion D. All of these
10	We can express the work in term of	A. directly measurable variables B. indirectly measurable variables C. either of them D. both of them