Hydraulics and Fluid Mechanics | Mechanical Engineering

Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.

Byadmin September 14, 2022

Question: Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.
[A].

Yes

[B].

Answer: Option B

Explanation:

No answer description available for this question.

Engineering Materials | Mechanical Engineering

Hardness of steel is increased by adding sulphur, lead and phosphorus.

Question: Hardness of steel is increased by adding sulphur, lead and phosphorus.
[A].

Yes
[B].
No

Answer: Option B

Explanation:

No answer description available for this question.

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Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Bell-Coleman cycle is a

Question: Bell-Coleman cycle is a
[A].

reversed Carnot cycle
[B].
reversed Otto cycle
[C].
reversed Joule cycle
[D].
reversed Rankine cycle

Answer: Option C

Explanation:

No answer description available for this question.

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Automobile Engineering | Mechanical Engineering

In a ventilated disc brake,

Question: In a ventilated disc brake,
[A].

a duct directs air towards the caliper for cooling while the vehicle is moving
[B].
caliper is covered with cooling fins
[C].
disc contains many small holes for optimum cooling performance
[D].
disc contains radial vanes between its rubbing surfaces for optimum cooling performance

Answer: Option D

Explanation:

No answer description available for this question.

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Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

Viscosity of water in comparison to mercury is ______________________?

Viscosity of water in comparison to mercury is ______________________?

A. higher
B. lower
C. same
D. higher/lower depending on temperature
E. unpredictable.

Read More Viscosity of water in comparison to mercury is ______________________?
Engineering Mechanics | Mechanical Engineering

A screw jack used for lifting the loads is

Question: A screw jack used for lifting the loads is
[A].

a reversible machine
[B].
a non-reversible machine
[C].
an ideal machine
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

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Engineering Materials | Mechanical Engineering

In flame hardening, oxy-acetylene flame is used.

Question: In flame hardening, oxy-acetylene flame is used.
[A].

Yes
[B].
No

Answer: Option A

Explanation:

No answer description available for this question.

Read More In flame hardening, oxy-acetylene flame is used.

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