1. The discharge through an orifice fitted in a tank can be increased by ?

fitting a short length of pipe to the outside

sharpening the edges of orifice

fitting a long length of pipe to the outside

fitting a long length of pipe to the inside

Answer: fitting a short length of pipe to the outside

Explanation:


2. Total pressure on the top of a closed cylindrical vessel completely filled with liquid, is directly proportional to ?

radius

square of radius

cube of radius

None of these

Answer: None of these

Explanation:


3. If flow in an open channel is gradually varied, then the flow will be ?

steady uniform flow

unsteady uniform flow

steady non-uniform flow

unsteady non-uniform flow

Answer: steady non-uniform flow

Explanation:


4. The energy loss in flow through nozzle as compared to venturimeter is ?

same

more

less

unpredictable

Answer: more

Explanation:


5. Orifice is an opening ?

with closed perimeter and of regular form through which water flows

with prolonged sides having length of 2 to 3 diameters of opening in thick wall

with partially full flow

in hydraulic structure with regulation provision

Answer: with closed perimeter and of regular form through which water flows

Explanation:


6. The value of coefficient of discharge in comparison to coefficient of velocity is ?

more

less

same

unpredictable

Answer: less

Explanation:


7. Heating of dry steam above saturation temperature is known as ?

enthalpy

super heating

super saturation

latent heat

Answer: super heating

Explanation:


8. The specific heat of superheated steam in kcal/kg is generally of the order of ?

0.1

0.3

0.5

0.8

Answer: 0.5

Explanation:


9. Adiabatic process is ?

essentially as isentropic process

non-heat transfer process

reversible process

constant temperature process

Answer: non-heat transfer process

Explanation:


10. The diameter (in cm) of Cornish boiler is of the order of ?

1 to 2

1. 5 to 2.5

2 to 3

2. 5 to 3.5

Answer: 1 to 2

Explanation: