Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

Byadmin September 14, 2022

Question: In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
[A].

running full

[B].

running free

[C].

partially running full

[D].

partially running free

Answer: Option B

Explanation:

No answer description available for this question.

Ic Engines And Nuclear Power Plants | Mechanical Engineering

Nuclear reactors are used

Question: Nuclear reactors are used
[A].

to produce heat for thermoelectric power
[B].
to produce fissionable material
[C].
to propel ships, submarines, aircrafts
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

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Hydraulic Machines | Mechanical Engineering

A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)

Question: A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Read More A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)
Engineering Mechanics | Mechanical Engineering

Mass moment of inertia of a uni form thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

Question: Mass moment of inertia of a uni form thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

Read More Mass moment of inertia of a uni form thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
Ic Engines And Nuclear Power Plants | Mechanical Engineering

In a four stroke cycle petrol engine, the inlet valve

Question: In a four stroke cycle petrol engine, the inlet valve
[A].

opens at top dead centre and closes at bottom dead centre
[B].
opens at 20° before top dead centre and closes at 40° after bottom dead centre
[C].
opens at 20° after top dead centre and closes at 20° before bottom dead centre id) may open or close anywhere

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a four stroke cycle petrol engine, the inlet valve
Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?

A. 10m/sec2
B. 9.81 m/sec2
C. 10.2/m sec
D. 9.75 m/sec2
E. 9 m/sec .

Read More An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Degree of saturation or percentage humidity is

Question: Degree of saturation or percentage humidity is
[A].

the mass of water vapour present in 1 m3 of dry air
[B].
the mass of water vapour present in 1 kg of dry air
[C].
the ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure.
[D].
the ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure

Answer: Option C

Explanation:

No answer description available for this question.

Read More Degree of saturation or percentage humidity is

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