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

Question # 1

No entrpy chagne is associated with

isothermal process
A
Adiabatic process
B
Isobaric process
C
Isochoric process
D

Question # 2

An addition of 400 J of heat casues the increase in internal energy of system is equal to 300 J, then work done will be

100 J
A
200J
B
300 J
C
400 J
D

Question # 3

Collision between gas molecules are perfectly

C

Elastic

E
A
Inelastic

B
Neither elastic nor inelastic

C
All of these

D

Question # 4

In an isothermal chagne, internal energy.

Decrease
A
Increase
B
Remain same
C
Becomes zero
D

Question # 5

The gas molecule sare in

Linear motion
A
Random Motion

B
Brownian motion

C
Circulatory motion

D

Question # 6

In carnot engine, each process is.

Reversible
A
Preferable Reversible
B
Irreversible
C
Perfectly irreversible
D

Question # 7

The efficiency of carnot eninge is always.

Greater than real engine
A
Less than real engine
B
Equal to the real engine
C
Both a and b
D

Question # 8

Adiabatic change occurs hen the gas expands or compressed.

Rapidly
A
Slowly
B
Gradually
C
Moderately
D

Question # 9

SI unit of entropy is

J/Kg
A
J/K
B
K gms-1
C
JK
D

Question # 10

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 # 11

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 # 12

KE of molecules of an ideal gas at absolutely zero will be

0
A
Infinite
B
Very High
C
Below zero
D

Question # 13

What happens to internal energy of an object when its temperature.

Decreses
A
Increases

I
B
Fluctuates

C
Remains Constant

D

Question # 14

The chagne in inernal energy is defined as.

Q- W
A
Q- T
B
Q+ P
C
Q - P
D

Question # 15

Chagne in entropy is maximum when temperature of source is that............of sink

Greater than
A
Less than
B
Equal to
C
Zero
D

Question # 16

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 # 17

Effeciency of a carnot engine is.

Infinite
A
Ten
B
Greater than 1
C
Less Than
D

Sr.#	Question	Answer
1	Adiabatic change occurs hen the gas expands or compressed.	A. Rapidly B. Slowly C. Gradually D. Moderately
2	KE of molecules of an ideal gas at absolutely zero will be	A. 0 B. Infinite C. Very High D. Below zero
3	No entropy change is associated with	A. Isothermal process B. Adiabatic process C. Isobaric process D. Isochoric process
4	Chagne in entropy is maximum when temperature of source is that............of sink	A. Greater than B. Less than C. Equal to D. Zero
5	In carnot engine, each process is.	A. Reversible B. Preferable Reversible C. Irreversible D. Perfectly irreversible
6	An addition of 400 J of heat casues the increase in internal energy of system is equal to 300 J, then work done will be	A. 100 J B. 200J C. 300 J D. 400 J
7	SI unit of entropy is	A. J/Kg B. J/K C. K gms-1 D. JK
8	Effeciency of a carnot engine is.	A. Infinite B. Ten C. Greater than 1 D. Less Than
9	The process which is carried out at constant temperature is called.	A. Adiabatic process B. Isothermal process C. Isochoic process D. Isobaric process
10	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

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No entrpy chagne is associated with

An addition of 400 J of heat casues the increase in internal energy of system is equal to 300 J, then work done will be

Collision between gas molecules are perfectly C

In an isothermal chagne, internal energy.

The gas molecule sare in

In carnot engine, each process is.

The efficiency of carnot eninge is always.

Adiabatic change occurs hen the gas expands or compressed.

SI unit of entropy is

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

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

KE of molecules of an ideal gas at absolutely zero will be

What happens to internal energy of an object when its temperature.

The chagne in inernal energy is defined as.

Chagne in entropy is maximum when temperature of source is that............of sink

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

Effeciency of a carnot engine is.

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Collision between gas molecules are perfectly

C