Engineering Mechanics | Mechanical Engineering

If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys

Byadmin September 14, 2022

Question: If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys
[A].

first

[B].

second

[C].

third

Answer: Option B

Explanation:

No answer description available for this question.

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Nusselt number (NN) is given by

Question: Nusselt number (NN) is given by
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Read More Nusselt number (NN) is given by
Hydraulic Machines | Mechanical Engineering

A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

Question: A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the
[A].
kinetic head
[B].
velocity head
[C].
manometric head
[D].
static head

Answer: Option C

Explanation:

No answer description available for this question.

Read More A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the
Engineering Mechanics | Mechanical Engineering

A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:

Question: A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
[A].
both the balls undergo an equal change in momentum
[B].
the change in momentum suffered by rubber ball is more than the lead ball
[C].
the change in momentum suffered by rubber ball is less than the lead ball
[D].
none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Read More A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Question: In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
[A].
wet vapour region
[B].
superheated vapour region
[C].
sub-cooled liquid region
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
Ic Engines And Nuclear Power Plants | Mechanical Engineering

In a petrol engine, if diesel is used, then the engine will

Question: In a petrol engine, if diesel is used, then the engine will
[A].
not run
[B].
run more efficiently
[C].
run at high speed
[D].
explode

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a petrol engine, if diesel is used, then the engine will
Automobile Engineering | Mechanical Engineering

Instead of valves, the ports are used in case of

Question: Instead of valves, the ports are used in case of
[A].
four stroke I.C. engines
[B].
two-stroke I.C. engines
[C].
V-6 engines
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More Instead of valves, the ports are used in case of

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