Fluid Mechanics Test

Question 1
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : Pascal law is the working principle of a hydraulic lift.
Reason : Pressure is equal to thrust per area.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 2
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : Hydrostatic pressure is a vector quantity.
Reason : Pressure is force divided by area, and force is a vector quantity.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If assertion is false but reason is true.

Question 3
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : A man sitting in a boat which is floating on a pond. If the man drinks some water from the pond, the level of the water in the pond decreases.
Reason : According to Archimedes principle the weight displaced by body is equal to the weight of the body.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If assertion is false but reason is true.

Question 4
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : The velocity increases, when water flowing in broader pipe enter a narrow pipe.
Reason : According to equation of continuity, product of area and velocity is constant.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 5
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : The velocity of flow of a liquid is smaller when pressure is larger and viceversa.
Reason : According to Bernoulli's theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 6
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : The size of the needle of a syning controls flow rate better than the thumb pressure exerted by a doctor while administering an injection.
Reason : Flow rate is independent of pressure exerted by the thumb of the doctor.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 7
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : The blood pressure in humans is greater at the feet than at the brain.
Reason : Pressure of liquid at any point is proportional to height, density of liquid and acceleration due to gravity.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 8
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : To float, a body must displace liquid whose weight is greater than the actual weight of the body.
Reason : The body will experiences no net downward force, in the case of floating.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 9
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : A piece of ice floats in water, the level of water remains unchanged when the ice melts completely.
Reason : According to Archimede's principle, the loss in weight of the body in the liquid is equal to the weight of the liquid displaced by the immersed part of the body.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Question 10
1 / -0

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : The velocity of fall of a man jumping with a parachute first increases and then becomes constant.
Reason : The constant velocity of fall of man is called terminal velocity.

A
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
C. If assertion is true but reason is false.

D
D. If the assertion and reason both are false.

Submit Test

Fluid Mechanics...

Question 1

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 2

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If assertion is false but reason is true.

Question 3

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If assertion is false but reason is true.

Question 4

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 5

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 6

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 7

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 8

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 9

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

Question 10

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.

B. If both assertion and reason are true but reason is not the correct explanation of the assertion.

C. If assertion is true but reason is false.

D. If the assertion and reason both are false.

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