For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be 675 300 337.5 600 TRUE ANSWER : ? YOUR ANSWER : ?
A fluid is said to be ideal, if it is incompressible inviscous and incompressible inviscous inviscous and compressible TRUE ANSWER : ? YOUR ANSWER : ?
The line of action of the buoyant force acts through the centroid of the submerged body volume of the floating body volume of the fluid vertically above the body displaced volume of the fluid TRUE ANSWER : ? YOUR ANSWER : ?
Pressure of the order of 10''' torr can be measured by ionisastion gauge Bourdon tube Micro-manometer Pirani Gauge TRUE ANSWER : ? YOUR ANSWER : ?
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS 0.611 1.01 0.95 0.86 TRUE ANSWER : ? YOUR ANSWER : ?
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if the area is vertical the area is inclined All of these the area is horizontal TRUE ANSWER : ? YOUR ANSWER : ?
Mercury is often used in barometer because both (B) and (C) the height of barometer will be less it is the best liquid its vapour pressure is so low that it may be neglected TRUE ANSWER : ? YOUR ANSWER : ?
Free surface of a liquid tends to contract to the smallest possible area due to force of cohesion viscosity surface tension friction TRUE ANSWER : ? YOUR ANSWER : ?
At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be maximum could be any value negative value minimum TRUE ANSWER : ? YOUR ANSWER : ?
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to less than the weight of the body more than the weight of the body weight of the fluid displaced by the body the weight of the body TRUE ANSWER : ? YOUR ANSWER : ?