The product of force (F) and time (t) is called as________.

What is the formula for forces exerted by fluid on a body?

A. (Rate of momentum in) x (Rate of momentum out)

B. (Rate of momentum in) – (Rate of momentum out)

C. (Rate of momentum in) + (Rate of momentum out)

D. None of the above

The radial force in rotodynamic machine, which is developed by rate of change of momentum in radial velocity, is taken care by__________.

A. journal bearing

B. radial thrust bearing

C. both a. and b.

D. none of the above

Meridonial velocity is the resultant of _____________ components of fluid velocity.

A. radial and tangential

B. tangential and axial

C. radial and axial

D. unpredictable

_______________ components of fluid velocity have the responsibility of the transportation of fluid through the machine.

A. Radial and tangential

B. Tangential and axial

C. Radial and axial

D. None of the existing

In which turbine the pressure energy of water is first converted into kinetic energy by means of nozzle kept close to the runner?

A. Impulse turbine

B. Reaction turbine

C. Both a. and b.

D. None of the above