You Scored:
Ranking:
Physics MCQs Quiz For Entry Test
1. When two objects come to common temperature, the body is said to be in:
None of these
Dynamic equilibrium
Thermal equilibrium (Answer)
Static equilibrium
2. Absolute zero is considered as that temperature at which:
Water freezezs
None of these
All gases become liquids (Answer)
All liquid become gases
3. The law of thermodynamics which discusses the condition under which heat energy is converted into an equivalent amount of work is:
2nd (Answer)
3rd
1st
None of these
4. First law of thermodynamics is merely a statement of law of conservation of:
Energy (Answer)
Charge
Linear momentum
Angular momentum
5. A certain engine converts 20% of available heat energy into work. Then its efficiency will be:
50%
80%
None of these
20% (Answer)
6. One degree of thermodynamics scale of temperature is called:
Farenheit
Celsius
Radian
Kelivin (Answer)
7. Real gases strictly obey gas laws at:
Low pressure and high temperature (Answer)
High pressure and high temperatures
None of these
High pressure and low temperatures
8. When the disorder of the state of system increases, its entropy:
Increases (Answer)
Decreases
Remain constant
None of theses
9. The temperature at which all the gases become liquid is called:
Absolute zero and -273 K
Absolute zero (Answer)
-273 K
273 K
10. Hotness or coldness of an object is represented in term of:
None of these
Heat
Temperature (Answer)
Chemical energy
11. In an isothermal process, the internal energy of the system:
Remains constant (Answer)
Increases
None of these
Decreases
12. Thermal radiations are type of:
Electromagnetic waves (Answer)
Mechanical waves
Alpha rays
Electrons
13. For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:
One half (Answer)
Four times
None of these
Double
14. Number of spark plugs needed in diesel engine is:
Six
Five
Four
None of these (Answer)
15. A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:
Ideal gas (Answer)
None of these
Real gas
Inert gas
.jpg)
