The dynamic viscosity of the liquid __________ with rise in temperature. None of these Decreases Increases Remain unaffected TRUE ANSWER : ? YOUR ANSWER : ?
The property by virtue of which a liquid opposes relative motion between its different layers is called Viscosity Coefficient of viscosity Osmosis Surface tension TRUE ANSWER : ? YOUR ANSWER : ?
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. Equal to One-fourth One-third One-half TRUE ANSWER : ? YOUR ANSWER : ?
The flow in which conditions do not change with time at any point, is known as one dimensional flow turbulent flow uniform flow steady flow TRUE ANSWER : ? YOUR ANSWER : ?
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream May increase/decrease Remain constant Keeps on decreasing Keeps on increasing TRUE ANSWER : ? YOUR ANSWER : ?
Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters) wQHs wQ (Hs + Hd) wQHd wQ (Hs - Hd) TRUE ANSWER : ? YOUR ANSWER : ?
In a forced vortex, the velocity of flow everywhere within the fluid is non-zero finite maximum minimum zero TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of the inertia force to the __________ is called Euler's number. Pressure force Viscous force Elastic force Surface tension force TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following pump is successfully used for lifting water to the boilers? Reciprocating pump Airlift pump Jet pump Centrifugal pump TRUE ANSWER : ? YOUR ANSWER : ?
The maximum number of jets generally employed in impulse turbine without jet interference is 6 12 8 4 TRUE ANSWER : ? YOUR ANSWER : ?