A hydraulic ram acts as a/an ______________ pump?
		A. Centrifugal
B. Reciprocating
C. Impulse
D. Parallel cylinder
		A. Centrifugal
B. Reciprocating
C. Impulse
D. Parallel cylinder
		A. Flow velocity
B. Pressure
C. Total energy
D. All A., B. and C.
		A. Pipe becomes smoother with use
B. Friction factor increases linearly with time
C. Absolute roughness decreases with time
D. Absolute roughness increases linearly with time
		A. < 2100
B. < 0.1
C. > 2.5
D. < 500
		A. Small differential
B. Atmospheric
C. Absolute
D. Gage
		A. Venturimeter
B. Pitot tube
C. Rotameter
D. None of these
		A. As square of
B. Directly as
C. As cube of
D. None of these
		A. Discharge and overall efficiency
B. Volume swept by piston for one complete revolution and the pressure in the cylinder
C. Angle swept by the crank  at any instant and the discharge
D. None of these
		A. 33:3
B. 50
C. 66.6
D. 88.8
		A. 25.61 kPa
B. 11.77 kPa
C. 14.86 kPa
D. 21.13 kPa