The Bernoulli's equation is based on the assumption that
A. There is no loss of energy of the liquid flowing
B. The velocity of flow is uniform across any cross-section of the pipe
C. No force except gravity acts on the fluid
D. All of the above
Answer D
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
A. Neutral equilibrium
B. Stable equilibrium
C. Unstable equilibrium
D. None of these
Answer B
Euler's equation in the differential form for the motion of liquids is given by
A.
B.
C.
D.
Answer A
If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,
A. P + m.a = 0
B. P - m.a = 0
C. P x m.a = 0
D. P/m.a = 0
The angle of inclination of the plane at which the body begins to move down the plane, is called
A. Angle of friction
B. Angle of repose
C. Angle of projection
D. Dynamic angle
