1471. The equation of continuity of fluid is based on the :

A. Law of conservation of energy *
B. Law of conservation of mass
C. Law of conservation of momentum
D. Third law of motion

1472. Teh Bernoulli’s equation is based on the :

A. Law of conservation of energy *
B. Law of conservation of mass
C. Law of conservation of motion
D. Third law of motion

1473. The rain drop falling from the sky reach the ground with :

A. Constant terminal velocity *
B. Constant gravitational acceleration
C. Variable acceleration
D. Variable speed

1474. If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity :

A. V/A = Constant
B. A/V = Constant
C. AV= Constant *
D. None

1475. Which of the following substances has high resistance to flow ?

A. Honey
B. Thick tar
C. Mobile oil
D. All of these *

1476. Substance which flows easily are :

A. Water
B. Kerosene oil
C. Petrol
D. All of these *

1477. A flowing liquid possesses :

A. K.E
B. P.E
C. Pressure energy
D. All of them *

1478. The drag force increases at the speed of the object :

A. Decreases
B. Increases *
C. Decreases rapidly
D. None of these

1479. At terminal velocity , fluid friction is :

A. Maximum *
B. Minimum
C. Zero
D. Decreasing

1480. As the droplet accelerates the net force acting on it is :

A. Increase
B. Decreases *
C. Zero
D. None of these