human resource interview questions

Question 1: One litre of water occupies a volume of

1000 cm3

Question 2: The value of bulk modulus of a fluid is required to determine.

Mach number

Question 3: In a depressed nappe

the pressure below the nappe is negative

Question 4: In one dimensional flow, the flow

takes place in straight line

Question 5: The kinematic viscosity is the.

ratio of absolute viscosity to the density of the liquid

Question 6: A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

more than

Question 7: A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid).

wH2/2

Question 8:An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.

2.5%

Question 9: Coefficient of contraction is the ratio of.

area of jet at vena contracta to the area of orifice

Question 10:In a free nappe,

the pressure below the nappe is atmospheric

Question 11:The Reynold's number of a ship is __________ to its velocity and length.

directly proportional

Question 12: When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water.

False

Question 13: The coefficient of viscosity may be determined by

capillary tube method, orifice type viscomete , rotating cylinder method

Question 14: Coefficient of resistance is the ratio of

loss of head in the orifice to the head of water available at the exit of the orifice

Question 15: According to equation of continuity,

a1v1 = a2v2

Question 16:The total energy line lies over the hydraulic gradient line by an amount equal to the

velocity head

Question 17: In order to measure the flow with a venturimeter, it is installed in

any direction and in any location

Question 18: The maximum discharge over a broad crested weir is

1.71 Cd x L x H3/2

Question 19: The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

16/RN

Question 20:Which of the following is an example of laminar flow?

Under ground flow, Flow past tiny bodies, Flow of oil in measuring instruments

Question 21: The pressure less than atmospheric pressure is known as

suction pressure, vacuum pressure, negative gauge pressure

Hydraulics and Fluid Mechanics interview questions