Hydraulic Machines | Mechanical Engineering

In an outward flow reaction turbine

Byadmin September 14, 2022

Question: In an outward flow reaction turbine
[A].

the water flows parallel to the axis of the wheel

[B].

the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel

[C].

the water enters the wheel at the outer periphery and then flows towards the centre of the wheel

[D].

the flow of water is partly radial and partly axial

Answer: Option B

Explanation:

No answer description available for this question.

Hydraulics and Fluid Mechanics | Mechanical Engineering

According to Chezy’s formula, the discharge through an open channel is (where A = Area of flow, C = Chezy’s constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

Question: According to Chezy’s formula, the discharge through an open channel is (where A = Area of flow, C = Chezy’s constant, m = Hydraulic mean depth, and i = Uniform slope in bed)
[A].

A m x i
[B].
C m x i
[C].
AC m x i
[D].
mi A x C

Answer: Option C

Explanation:

No answer description available for this question.

Read More According to Chezy’s formula, the discharge through an open channel is (where A = Area of flow, C = Chezy’s constant, m = Hydraulic mean depth, and i = Uniform slope in bed)
Ic Engines And Nuclear Power Plants | Mechanical Engineering

In compression ignition engines, swirl denotes a

Question: In compression ignition engines, swirl denotes a
[A].

haphazard motion of the gases in the chamber
[B].
rotary motion of the gases in the chamber
[C].
radial motion of the gases in the chamber
[D].
none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Read More In compression ignition engines, swirl denotes a
Engineering Materials | Mechanical Engineering

In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.

Question: In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.
Engineering Mechanics | Mechanical Engineering

Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Question: Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
[A].

meet
[B].
do not meet

Answer: Option B

Explanation:

No answer description available for this question.

Read More Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
Hydraulic Machines

The efficiency of a centrifugal pump is maximum when its blades are__________________?

The efficiency of a centrifugal pump is maximum when its blades are__________________?

A. straight
B. bent forward
C. bent backward
D. bent forward first and then backward
E. bent backward first and then forward

Read More The efficiency of a centrifugal pump is maximum when its blades are__________________?
Engineering Materials | Mechanical Engineering

German silver contains

Question: German silver contains
[A].

70% copper and 30% zinc
[B].
60% copper and 40% zinc
[C].
59% copper, 40% zinc and 1% tin
[D].
60.45% copper, 35.2% zinc and 5.35% nickel

Answer: Option D

Explanation:

No answer description available for this question.

Read More German silver contains

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