Hydraulic accumulator is used for Generally high pressures to operate hydraulic machines Accumulating oil Supplying energy when main supply fails Supplying large quantities of oil for very short duration TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of the inertia force to the __________ is called Euler's number. Surface tension force Elastic force Pressure force Viscous force TRUE ANSWER : ? YOUR ANSWER : ?
The flow in a pipe is turbulent when Reynold number is More than 2800 None of these Between 2000 and 2800 Less than 2000 TRUE ANSWER : ? YOUR ANSWER : ?
The mass per unit volume of a liquid at a standard temperature and pressure is called None of these Specific gravity Specific weight Mass density TRUE ANSWER : ? YOUR ANSWER : ?
A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ? 4 x V225 minutes 4 (225)1/3 minutes 4 x (225)3/2 minutes 4 minutes TRUE ANSWER : ? YOUR ANSWER : ?
The pressure measured with the help of a Piezometer tube is in N/m2 N/mm2 All of these Head of liquid TRUE ANSWER : ? YOUR ANSWER : ?
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.) L.A.N (2 L.A.N)/60 2 L.A.N (L.A.N)/60 TRUE ANSWER : ? YOUR ANSWER : ?
A flow through an expanding tube at constant rate is called Unsteady non-uniform flow Unsteady uniform flow Steady uniform flow Steady non-uniform flow TRUE ANSWER : ? YOUR ANSWER : ?
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is 13,500 kg 27,000 kg 9,000 kg 18,000 kg TRUE ANSWER : ? YOUR ANSWER : ?