Test: Fluid Mechanics Level - 5 - Mechanical Engineering MCQ

conservation of mass

rate of change of linear momentum

rate of change of angular momentum

rate of change of velocity

A

B

C

D

more than atmospheric pressure to vacuum

less than atmospheric pressure to zero gauge pressure

atmospheric pressure to more than atmospheric pressure

atmospheric pressure to vacuum

Pelton turbine

Deriaz turbine

Tubular turbine

Turgo-impulse turbine

Pelton wheel, Francis turbine and kalpan turbine

Propeller turbine, Framcis turbine and pelton wheel

kalpan turbine, pelton wheel and Francis turbine

Francis turbine, Kaplan turbine and Felton wheel

vane angle is increased

vane angle is decreased

pressure is reduced

vane is moved against the jet

1/4

1/2

3/4

1

propeller turbine

pelton turbine

Kaplan turbine

Francis turbine

Discharge and power

Discharge and velocity

Head and power

Head and velocity

A

B

C

D

210 N

2.1 kN

20.6 kN

206 N

Outward flow reaction turbine

Inward flow impulse turbine

Low head axial flow turbine

High head mixed flow turbine

Water hammer

centrifugal action

reciprocating action

hydraulic press

A

B

C

D

centrifugal pumps to lift water from a greater depth

centrifugal pumps to remove air in the suction pipe and casing

hydraulic turbine to remove air in the turbine casing

hydraulic turbine to increase the speed of turbine and to generate more power

radial

curved backward

curved forward

twisted

To obtain a continous supply of water at uniform rate

To reduce suction head

To increase the delivery head

To reduce cavitation

For high flow rate

For high head

For high speed

For high efficiency

head varies inversely as square of speed

discharge varies directly as speed

discharge varies directly as square of speed

Power varies directly as fifth power of speed

tangential flow impulse turbine

outward flow impulse turbine

inward flow impulse turbine

inward flow reaction turbine

low head of water

high head of water

medium head of water

High discharge

diameter of jet to the diameter of Pelton wheel

velocity of jet to the velocity of Pelton wheel

diameter of Pelton wheel to the diameter of jet

velocity of Pelton wheel to the velocity turbine?

allow the water to enter the runner without shock

allow the water to flow over them, without forming eddies

allow the required quantity of water to enter  the turbine

all of the above