i) increases stability

ii) decreases stability

iii) increases comfort for passengers

iv) decreases comfort for passengers

The correct answer is

a) (i) and (iii)

b) (i)and(iv)

c) (ii) and (iii)

d) (ii) and (iv)

Ans: b

# Category: FLUID MECHANICS Questions

## The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid

a) steady flow

b) uniform flow

c) incompressible flow

d) frictionless flow

where pi and p2 are mass densities.

Ans: a

## Coefficient of velocity of venturimeter | FLUID MECHANICS

a) is independent of Reynolds number

b) decreases with higher Reynolds number

c) is equal to the coefficient of discharge of venturimeter

d) none of the above

Ans: c

## The total pressure on a plane surface inclined at an angle 9 with the horizontal is equal to | FLUID MECHANICS

a) PA

b) pA sin 9

c) pA cos 9

d) pA tan 9

where p is pressure intensity at centroid of area and A is area of plane surface.

Ans: a

## A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is

a) 5kN

b) lOkN

c) 15 kN

d) 20 kN

Ans: b

## Which of the following velocity potentials satisfies continuity equation ? | FLUID MECHANICS

a) x2y

b) x2-y2

c) cosx

d) x2 + y2

Ans: b