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Question: Most commonly used joint in the underground pipe lines is the
[A].

sleevejoint

[B].

coupling

[C].

flange

[D].

expansion joint

Answer: Option A

Explanation:

No answer description available for this question.

Question: A pitched-blade turbine draws __________ a straight blade turbine.
[A].

less power than

[B].

more power than

[C].

same power as

[D].

data insufficient to predict

Answer: Option A

Explanation:

No answer description available for this question.

Question: Froude number is not a factor
[A].

for Reynolds number greater than 300.

[B].

when there is no vortex formation.

[C].

for unbaffled tank.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Froude number is the ratio of
[A].

shear stress to gravitational stress.

[B].

drag stress to shear stress.

[C].

inertial stress to shear stress.

[D].

inertial stress to gravitational stress.

Answer: Option D

Explanation:

No answer description available for this question.

Question: With increase in the temperature, viscosity of a liquid
[A].

increases

[B].

decreases

[C].

remains constant

[D].

may increase or decrease; depends on the liquid

Answer: Option B

Explanation:

No answer description available for this question.

Question: Baffles in mixing tanks are provided to
[A].

reduce swirling and vortex formation.

[B].

increase the structural strength of the tank.

[C].

aid in rotational flow.

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Dimension of kinematic viscosity is
[A].

MLT-1

[B].

L2 . T-1

[C].

L2T

[D].

L2 . T-2

Answer: Option B

Explanation:

No answer description available for this question.

Question: A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m3/s? The Fanning friction factor, f is 0.0062.
[A].

10 m

[B].

11 m

[C].

12 m

[D].

20 m

Answer: Option B

Explanation:

No answer description available for this question.

Question: A pipe has a porous section of length L as shown in the figure. Velocity at the start of this section of V0. If fluid leaks into the pipe through the porous section at a volumetric rate per unit area q(x/L)2, what will be axial velocity in the pipe at any x ? Assume incompressible one dimensional flow i.e., no gradients in the radial direction.
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

Question: A conical tank with a bottom opening of cross-sectional area A is filled with water and is mounted on supports as shown in the figure. What is the force F with which plate X must be pushed up to prevent water from leaking ? Assume that the density of air is negligible as compared to the density of water ρL.
[A].

ρL . Vg

[B].

ρL . A.Hg

[C].

ρL . Vg/2

[D].

ρL .Vg/3

Answer: Option B

Explanation:

No answer description available for this question.