Mechanical Properties of Fluids Test

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Mechanical Properties of Fluids Test - 63

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Question 1
4 / -1

Assertion The size of the needle of a syringe 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
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.

E
If Assertion is false but Reason is true.

Solution
Question 2
4 / -1

Assertion A fluid flowing out of a small hole in a vessel apply a backward thrust on the vessel
Reason According to equation of continuity, the product of area and velocity remain constant .

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.

E
If Assertion is false but Reason is true.
Question 3
4 / -1

Assertion For a floating body to be in stable equilibrium, its centre of buoyancy must be located above the centre of gravity
Reason The torque produced by the weight of the body and the upthrust will restore body back to its normal position, after the body is disturbed.

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 true but Reason is false.

E
If Assertion is false but Reason is true.
Question 4
4 / -1

Assertion In taking into account the fact that any object which floats must have an average density less than that of water, during world war I, a number of cargo vessels are made of concrete.
Reason Concrete cargo vessels were filled with air.

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.

E
If Assertion is false but Reason is true.

Solution
Question 5
4 / -1

Assertion A thin stainless steel needle can lay floating on a still water surface.
Reason Any object floats when the buoyancy force balances the weight of the object.

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.

E
If Assertion is false but Reason is true.
Question 6
4 / -1

Assertion Aeroplanes are made to run on the runway before take off, so that they acquire the necessary lift.
Reason According to Bernoull\'s theorem, as velocity increases pressure decreases and viceversa.

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.

E
If Assertion is false but Reason is true.
Question 7
4 / -1

Assertion Sudden fall of pressure at a place indicates storm.
Reason Air flows from higher pressure to lower pressure

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.

E
If Assertion is false but Reason is true.
Question 8
4 / -1

Assertion Machine parts are jammed in winter .
Reason The viscosity of lubricant used in machine parts increase at low temperature.

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.

E
If Assertion is false but Reason is true.
Question 9
4 / -1

Assertion When two boats sail parallel in the same direction and close to each other, they are pulled towards each other.
Reason The viscous drag on a spherical body moving with speed v is proportional to v.

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.

E
If Assertion is false but Reason is true.
Question 10
4 / -1

Assertion A rain drop after falling through some height attains a constant velocity
Reason At constant velocity, the viscous drag is just equal to its weight.

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.

E
If Assertion is false but Reason is true.

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Mechanical Properties of Fluids Test - 63

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Mechanical Properties of Fluids Test - 63

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Question 1

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Solution

Question 2

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 3

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If Assertion is true but Reason is false.

If Assertion is false but Reason is true.

Question 4

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Solution

Question 5

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 6

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 7

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 8

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 9

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

Question 10

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

If Assertion is true but Reason is false.

If the Assertion and Reason both are false.

If Assertion is false but Reason is true.

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Question Analysis

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