Fluid mechanics MCQ-04

Q.1 which instrument is used to measure flow ?

A. Thermometer 

B. Rotameter

C. Raynold's meter

D. Barometer

Ans-: B

Q.2 Hydraulic jump is the example of which type of flow ?

A. Uniform flow 

B. Steady flow 

C. Non- uniform flow 

D. Turbulent flow 

Ans-: C

Q.3 Any obstruction of a stream flow over which water flows can be called ___.

A. Weir

B. Spillway

C. Water hammer

D. None of these 

Ans-: A

Q.4 water hammer is caused due to sudden stoppage of ____ .

A. Water contain in a tank

B. Water flow in a pipe 

C. Water flow through open channel 

D. All of the above 

Ans-: B

Q.5 _____ are used to relieve the pipe line of excessive pressure. 

A. Dam

B. Surge tank 

C. Hydraulic dam

D. None of these 

Ans-: B

Q.6 which device is used for measuring the rate of flow of a liquid through a small channel?

A. Notch

B. Rotameter 

C. Manometer

D. NOT

Ans-: A

Q.7 which of the following is measured by the pitot tube?

A. Pressure 

B. Flow

C. Discharge 

D. Velocity 

Ans-: D

Q.8 the upper surface of the weir over which water flows ______.

A. Vein

B. Sill

C. Nappe

D. Weir top surface 

Ans-: B

Q.9 specific gravity of fluid is determined by 

A. Hydrometer

B. Rotameter 

C. Manometer

D. None of these 

Ans-: A

Q.10 An idel fluid is __.

A. Frictionless 

B. Incompressible 

C. Very viscous 

D. A+B

Ans-: D