SSC JE Mechanical Engineering 29th Jan 2018 Shift-1
For the following questions answer them individually
The unit speed of a turbine is equal to
(a) $$\frac{N}{\sqrt{H}}$$
(b) $$\frac{\sqrt{H}}{N}$$
(c) $$N\sqrt{H}$$
(d) $$\frac{2N}{\sqrt{H}}$$
Consider the following statements regarding Bernoulli’s theorem for fluid flow
1. Conservation of energy
2. Steady flow
3. Viscous flow
4. Incompressible flow
Which of the above statements is/are correct?
Consider the following statements pertaining to specific speed of turbo machines:
1. Specific speed varies with shape of the runner and other parts of the machine.
2. Machines with higher specific speeds are limited to low heads.
3. Specific speed is dimensionless .and is independent of variation of type of fluid used.
Which of the statements given above are correct?
The velocity of a water stream is being measured by a L- Shaped pitot-tube and the readings is 20 cm. Then, what is the approximate value of velocity?
