11th class Physics chapter 6 online mcq test with answers for ICS part 1 Physics chapter 6(Fluid Dynamics)

Question # 1

Internal energy is similar to the

Vibrational K.E.
A
Gravitational P.E.
B
K.E.
C
All of these
D

Question # 2

Collision between gas molecules are perfectly

C

Elastic

E
A
Inelastic

B
Neither elastic nor inelastic

C
All of these

D

Question # 3

When two obnects are made in thermal contact heaving same temperature then they are at.

Thermal Equilibrium
A
Chemical equilibrium
B
Mechanicla Equilibrium
C
Physical Equilibrium
D

Question # 4

In all natural prcoessees where heat flow from one system to another there is always a net increase in

Pressure
A
Entropy
B
Work
C
Volume
D

Question # 5

Which is not exmple of ddiablatic process.

Rapid escape of air from burst tyre
A
Rapid expansion of air
B
Conversion of water into ice in refrigerator
C
Cloud formation in the atmosphere
D

Question # 6

What one is not an isothermal change.

Melting of solid
A
Bioling of liquid
B
Bursting of bicycle tyre
C
Slow expansion of gas
D

Question # 7

Effeciency of a carnot engine is.

Infinite
A
Ten
B
Greater than 1
C
Less Than
D

Question # 8

First law of thermodynamics is based upon law of conservatio of.

Mass
A
Momentum
B
Energy
C
Charge
D

Question # 9

According to kinetic theory of gases, the size of the molecule is.

Much smaller than the separation between molecule

M
A
Much larger than the separation btween molecules

B
Botha a and b

C
Much larger ahtn the separation between atom

D

Question # 10

When th systme is expanded by additing heat energy, then the work done will be

Postive and on the system
A
Negative and on the system
B
Postive and by the system
C
Negative and by the system
D

Question # 11

A device which covnerts thermal eergy into mechanical energy is called.

Turbine
A
Heat engine
B
Carnot engine
C
Rerigerator
D

Question # 12

The efficiency of carnot engine depends upon

Sink temperature
A
Source temperature
B
Both a and b
C
The working substance
D

Question # 13

The sum of all forms of molecular energies of substance is termed as

Kinetic energy
A
Potential energy
B
Internal energy
C
Heat energy
D

Question # 14

Carnot Cycle is

Reersible
A
Irreversible
B
Both
C
Cp - Cv = R
D

Question # 15

What can be calculated from the curve under PV graph.

Heat
A
Work done
B
Temperatures
C
Internal energy
D

Question # 16

The process which is carried out at constant temperature is called.

Adiabatic process
A
Isothermal process
B
Isochoic process
C
Isobaric process
D

Question # 17

In carnot engine, each process is.

Reversible
A
Preferable Reversible
B
Irreversible
C
Perfectly irreversible
D

Sr.#	Question	Answer
1	In all natural prcoessees where heat flow from one system to another there is always a net increase in	A. Pressure B. Entropy C. Work D. Volume
2	A device which covnerts thermal eergy into mechanical energy is called.	A. Turbine B. Heat engine C. Carnot engine D. Rerigerator
3	First law of thermodynamics is based upon law of conservatio of.	A. Mass B. Momentum C. Energy D. Charge
4	Entropy of a system in reversibel process	A. Fluctuates B. Increases C. Is infinite D. Decrease
5	When two obnects are made in thermal contact heaving same temperature then they are at.	A. Thermal Equilibrium B. Chemical equilibrium C. Mechanicla Equilibrium D. Physical Equilibrium
6	According to kinetic theory of gases, the size of the molecule is.	A. Much smaller than the separation between molecule M B. Much larger than the separation btween molecules C. Botha a and b D. Much larger ahtn the separation between atom
7	The process which is carried out at constant temperature is called.	A. Adiabatic process B. Isothermal process C. Isochoic process D. Isobaric process
8	No entropy change is associated with	A. Isothermal process B. Adiabatic process C. Isobaric process D. Isochoric process
9	When th systme is expanded by additing heat energy, then the work done will be	A. Postive and on the system B. Negative and on the system C. Postive and by the system D. Negative and by the system
10	SI unit of entropy is	A. J/Kg B. J/K C. K gms-1 D. JK

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Internal energy is similar to the

Collision between gas molecules are perfectly C

When two obnects are made in thermal contact heaving same temperature then they are at.

In all natural prcoessees where heat flow from one system to another there is always a net increase in

Which is not exmple of ddiablatic process.

What one is not an isothermal change.

Effeciency of a carnot engine is.

First law of thermodynamics is based upon law of conservatio of.

According to kinetic theory of gases, the size of the molecule is.

When th systme is expanded by additing heat energy, then the work done will be

A device which covnerts thermal eergy into mechanical energy is called.

The efficiency of carnot engine depends upon

The sum of all forms of molecular energies of substance is termed as

Carnot Cycle is

What can be calculated from the curve under PV graph.

The process which is carried out at constant temperature is called.

In carnot engine, each process is.

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Collision between gas molecules are perfectly

C