# Hydraulic Question

Some important Question of Hydraulic

1.      The basic head loss in a long pipe is :
a)     Fittings
b)     Sudden increase in diameter
c)     Sudden decrease in diameter
d)     Friction

2.      Which of the following has highest coefficient of discharge:
a)     Sharp edge of orifice
b)     Venturimeter
c)     Cipolleti weir
d)     Borda’s mouth piece running full

3.      The hydrostatic force exerted by 2 m deep water on the gate down stream is equal to :
a)     40 KN
b)     10 KN
c)     20 KN
d)     30 KN

4.      The total energy of a liquid in motion is equal to :
a)     Pressure energy + kinetic energy + potential energy
b)     Pressure energy – (Kinetic energy + potential energy)
c)     Potential energy – (pressure energy + kinetic energy)
d)     Kinetic energy – (pressure energy + potential energy)

5.      If fluid or flow parameters at any given instant remain sam at every point in space, it is called “
b)     Laminar flow
c)     Uniform flow
d)     Rotational flow

6.      To measure very low pressure, we use :
a)     Barometers
b)     Piezometers
c)     Monometers
d)     Differential monometers

7.      The upper surface of the weir over which water flows is known as :
a)     Vein
b)     Nappe
c)     Sill
d)     None of the above

8.      What affects in quantity of mass of a fluid ?
a)     Acceleration due to gravity
b)     Distance from the center of the earth
c)     Elevation of the body
d)     None of the above

9.      The magnitude of capillary rise in more in :
a)     Silts
b)     Sands
c)     Clays
d)     Gravels

10. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if
a)     Area is horizontal
b)     Area is vertical
c)     Area is inclined
d)     All of the above

 Q Ans Q Ans 1 d 6 b 2 b 7 d 3 c 8 d 4 a 9 c 5 b 10 d

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