A. Ensure intermittent supply of hydraulic pressure
B. Increase the pressure and store/ accumulate it
C. Accumulate pressure to increase force
D. Generate high pressure to operate hydraulic machines like cranes, lifts, presses etc
Related Mcqs:
- A hydraulic accumulator comprises of__________________?
A. A storage device and a control valve
B. A cylinder and a plunger
C. Two pistons and two cylinders
D. A storage tank and a ram pump - Capacity of a hydraulic accumulator is defined in terms of maximum_____________________?
A. Amount of energy stored
B. Flow rate through accumulator
C. Rate of falling of ram
D. Volume available in the cylinder - The capacity of an accumulator is the maximum_________________?
A. Energy which it can store
B. Discharge which it can deliver
C. Liquid which it can store
D. None of these - A hydraulic press has a ram of 10 cms in diameter and a plunger of 1 cm in diameter. The force required on the plunger to raise a weight of 10 tons on the ram is _____________ kg?
A. 10
B. 100
C. 1000
D. 10000 - 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’ - In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of___________________?
A. Relative roughness
B. Absolute roughness
C. Friction co-efficient for flows at equal Reynold number
D. All A., B. & C. - Which of the following quantities are computed by using the hydraulic radius for noncircular ducts ?
A. Velocity and relative roughness
B. Head loss and velocity
C. Reynold number, relative roughness and head loss
D. Reynolds number and friction factor - The pump impeller and the turbine runner in a hydraulic torque converter___________________?
A. Have the same diameter
B. Have different diameters
C. Are directly coupled
D. None of these - A hydraulic ram acts as a/an ______________ pump?
A. Centrifugal
B. Reciprocating
C. Impulse
D. Parallel cylinder - The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is___________________?
A. √(HW/π)
B. HW/2 (H + W)2
C. HW/4 (H + W)2
D. 2HW/(H + W)