Mechanical Engineering - Hydraulic Machines

Exercise : Hydraulic Machines - Section 2
36.
The depth of the bucket for a Pelton wheel is generally __________ the diameter of jet.
equal to
1.2 times
1.8 times
double
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
An impulse turbine is used for
low head of water
high head of water
medium head of water
high discharge
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship, will be maximum when the relative velocity of the jet and ship is equal to twice the velocity of the ship.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
The cavitation in reaction turbines is avoided, to a great extent by
installing the turbine below the tail race level
using stainless steel runner of the turbine
providing highly polished blades to the runner
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
Which type of the pump is different from others in the same group?
Screw pump
Gear pump
Cam and piston pump
Plunger pump
Answer: Option
Explanation:
No answer description is available. Let's discuss.