HYDRAULICS AND FLUID MECHANICS IN ME QUIZ

The major loss of energy in long pipes is due to

sudden enlargement

gradual contraction or enlargement

sudden contraction

friction

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum number of jets generally employed in impulse turbine without jet interference is

6

4

8

12

TRUE ANSWER : ?
YOUR ANSWER : ?

The volume of a fluid __________ as the pressure increases.

Increases

Remains same

Decreases

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The divergent portion of a Venturimeter is made longer than convergent portion in order to

Both (A) and (B)

To minimize frictional losses

Avoid the tendency of breaking away the stream of liquid

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The wake

None of these

always occurs after a separation point

is a region of high pressure intensity

always occurs before a separation point

TRUE ANSWER : ?
YOUR ANSWER : ?

For 450 m head of water, _________ shall be used.

Pelton wheel

None of these

Francis turbine

Kaplan turbine

TRUE ANSWER : ?
YOUR ANSWER : ?

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

h

w/h

wh

h/w

TRUE ANSWER : ?
YOUR ANSWER : ?

The value of mass density in kgsecVm4 for water at 0°C is

101.9

1000

1

100

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an incorrect statement ?

Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined

None of these

Coefficient of contraction of a venturimeter is unity

Flow nozzle is cheaper than venturimeter but has higher energy loss

TRUE ANSWER : ?
YOUR ANSWER : ?

The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

(8/15) Cd. 2g. H

(8/15) Cd. 2g. H3/2

(8/15) Cd. 2g. H²

(8/15) Cd. 2g. H5/2

TRUE ANSWER : ?
YOUR ANSWER : ?