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

Question # 1

Pressure of a gas is directly proportional to average.

Potential energy

A
Rotational energy

B
Translation K.E

C
Compressed P.E.
D

Question # 2

'R' is called

Universal constant
A
Universal per molecule constant
B
Universal gas constant
C
All of the above
D

Question # 3

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 # 4

No entrpy chagne is associated with

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

Question # 5

Adiabatic change occurs hen the gas expands or compressed.

Rapidly
A
Slowly
B
Gradually
C
Moderately
D

Question # 6

In an isothermal chagne, internal energy.

Decrease
A
Increase
B
Remain same
C
Becomes zero
D

Question # 7

K = R/NA , Where k is called.

Rydsberg constant
A
Boltzmann constant
B
Stefan constant
C
Planck's constant
D

Question # 8

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

Turbine
A
Heat engine
B
Carnot engine
C
Rerigerator
D

Question # 9

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

Decreses
A
Increases

I
B
Fluctuates

C
Remains Constant

D

Question # 10

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 # 11

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 # 12

Work done by the system is takn as

Positive
A
Negative
B
Undefined
C
None of these
D

Question # 13

Internal energy is similar to the

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

Question # 14

In an adiabatic process, there is no.

Change in temperature

A
Exchagne of heat

B
Chagne is internal energy

C
Work done

D

Question # 15

The process in which no heat enters or leaves the system is known as.

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

Question # 16

Boyle's law states that " The volume of a given mass of a gas is...................."

Directly proportional to absolute temperature
A
Invesely proportional to absolute temperature
B
Directly proportional to density
C
Inversely proportional topressure
D

Question # 17

The efficiency of carnot engine depends upon

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

Sr.#	Question	Answer
1	Chagne in entropy is maximum when temperature of source is that............of sink	A. Greater than B. Less than C. Equal to D. Zero
2	Entropy of a system in reversibel process	A. Fluctuates B. Increases C. Is infinite D. Decrease
3	No entropy change is associated with	A. Isothermal process B. Adiabatic process C. Isobaric process D. Isochoric process
4	When hot and cold water are mixed the entropy	A. Decrease B. Increase C. Remains constant D. Zero
5	Boyle's law states that " The volume of a given mass of a gas is...................."	A. Directly proportional to absolute temperature B. Invesely proportional to absolute temperature C. Directly proportional to density D. Inversely proportional topressure
6	SI unit of entropy is	A. J/Kg B. J/K C. K gms-1 D. JK
7	What happens to internal energy of an object when its temperature.	A. Decreses B. Increases I C. Fluctuates D. Remains Constant
8	Pressure of a gas is directly proportional to average.	A. Potential energy B. Rotational energy C. Translation K.E D. Compressed P.E.
9	Adiabatic change occurs hen the gas expands or compressed.	A. Rapidly B. Slowly C. Gradually D. Moderately
10	Which is not exmple of ddiablatic process.	A. Rapid escape of air from burst tyre B. Rapid expansion of air C. Conversion of water into ice in refrigerator D. Cloud formation in the atmosphere

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Pressure of a gas is directly proportional to average.

'R' is called

Which is not exmple of ddiablatic process.

No entrpy chagne is associated with

Adiabatic change occurs hen the gas expands or compressed.

In an isothermal chagne, internal energy.

K = R/NA , Where k is called.

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

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

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

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

Work done by the system is takn as

Internal energy is similar to the

In an adiabatic process, there is no.

The process in which no heat enters or leaves the system is known as.

Boyle's law states that " The volume of a given mass of a gas is...................."

The efficiency of carnot engine depends upon

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