A. 10
B. 100
C. 1000
D. 10000
Related Mcqs:
- A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be _______________ cms?
A. 17
B. 42
C. 84
D. 1.8 - A hydraulic ram acts as a/an ______________ pump?
A. Centrifugal
B. Reciprocating
C. Impulse
D. Parallel cylinder - The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?
A. 1.8
B. 12.4
C. 186.2
D. 736.4 - Plunger pumps are used for__________________?
A. Higher pressure
B. Slurries
C. Viscous mass
D. None of these - Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)?
A. Df + Bf = Wf
B. Df = Bf + Wf
C. Df + Bf + Wf =0
D. None of these - Hydraulic diameter for non-circular ducts is equal to ___________ times the area of flow divided by the perimeter?
A. Two
B. Three
C. Four
D. Eight - Hydraulic mean depth (Dm) for a circular pipe of diameter ‘D’ flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum ?
A. Flow rate
B. Mean velocity
C. Both ‘a’ & ‘b’
D. Neither ‘a’ nor ‘b’ - The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is_________________?
A. 0.3
B. 0.9
C. 0.03
D. 0.66 - The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is___________________?
A. 4(Ro-Ri)
B. √(Ro-Ri)
C. 2(Ro-Ri)
D. Ro + Ri - A fluid (μ/ρ) = 0.01 cm2/sec is moving at critical flow condition (NRe = 2100) through a pipe of dia 3 cms. Velocity of flow is _______________ cm/sec?
A. 7
B. 700
C. 7000
D. 630
