MCQs of Hydraulic Machines (Fluid Mechanics and Hydraulic Machines - 3141906)

Showing 1 to 10 out of 31 Questions

Hydraulic ram is

(a)	a mechanical device for operating the hydraulic crane
(b)	a pump that works on the principle of positive displacement action
(c)	a pump which ensures a considerably large supply of low-pressure water
(d)	a pump that lifts small quantities of water to greater heights from large quantities of water available at smaller heights

The hydraulic ram is a device used

(a)	to accelerate water flow
(b)	to lift water without electric motor
(c)	for lifting heavy loads
(d)	all of the above

The hydraulic ram is a pump which works on the principle of

(a)	centrifugal action
(b)	reciprocating action
(c)	positive displacement action
(d)	inertia forces of water in the supply line

A hydraulic ram acts like

Maximum impulse will be developed in hydraulic ram when

(a)	the waste valve closes suddenly
(b)	supply pipe is long
(c)	supply pipe is short
(d)	ram chamber is large

The hydraulic intensifier is a device used to

(a)	transfer and lift heavy loads
(b)	augment the supply rate of water
(c)	increase the pressure intensity of the liquid
(d)	store the energy of fluid under pressure

A hydraulic intensifier normally consists of

(a)	two cylinders, two rams and a storage device
(b)	a cylinder and a ram
(c)	two co-axial rams and two cylinders
(d)	a cylinder, a piston, storage tank and control valve

A hydraulic press is a device used

(a)	to store pressure energy which may be supplied to a machine later on
(b)	to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
(c)	to lift the larger load by the application of a comparatively much smaller force
(d)	all of the above

The working of which of the following hydraulic units is based on Pascal's law?

10.

In a hydraulic press, the pump acts as a _________

Showing 1 to 10 out of 31 Questions