An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is 9.81 m/sec² 10.2/m sec 10m/sec² 9.75 m/sec² TRUE ANSWER : ? YOUR ANSWER : ?
Surface energy per unit area of a surface is numerically equal to force of adhesion force of cohesion atmospheric pressure surface tension TRUE ANSWER : ? YOUR ANSWER : ?
Two dimensional flow occurs when the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the direction and magnitude of the velocity at all points are identical the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time the magnitude and direction of the velocity do not change from point to point in the fluid TRUE ANSWER : ? YOUR ANSWER : ?
A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ? 1 : 5 1 :25 1:50 1 : 2.5 TRUE ANSWER : ? YOUR ANSWER : ?
True one-dimensional flow occurs when the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the direction and magnitude of the veiocity at all points are identical the magnitude and direction of the velocity do not change from point to point in the fluid TRUE ANSWER : ? YOUR ANSWER : ?
A perfect gas is of theoretical interest None of these has constant viscosity is incompressible TRUE ANSWER : ? YOUR ANSWER : ?
Select the correct statement Standard atmospheric pressure is the mean local atmospheric pressure a* sea level Local atmospheric pressure is always below standard atmospheric pressure A barometer reads the difference be-tween local and standard atmospheric pressure Local atmospheric pressure depends upon elevation of locality only TRUE ANSWER : ? YOUR ANSWER : ?
The surface tension of mercury at normal temperature compared to that of water is same more or less depending on size of glass tube less more TRUE ANSWER : ? YOUR ANSWER : ?
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the force of cohesion force of diffusion force of friction force of adhesion TRUE ANSWER : ? YOUR ANSWER : ?
An open vessel of water is accelerated up an inclined plane. The free water surface will be horizontal make an angle in opposite direction to inclination of inclined plane any one of above is possible make an angle in direction of inclination of inclined plane TRUE ANSWER : ? YOUR ANSWER : ?