Hydraulic Machines and Hydro Power PYQs, GPSC Civil (Page 1)

1. Braking jet in an impulse turbine is used to

A) break the jet of water
B) bring the runner to rest in a short time.
C) change the direction of the runner.
D) change the direction of the flow

Check Answer

B) bring the runner to rest in a short time.

2. In an outward flow reaction turbine

A) The water flows parallel to the axis of wheel.
B) The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel.
C) The water enters the wheel at the outer periphery and then flows towards at the centre of the wheel.
D) The flow of water is partly radial and partly axial.

Check Answer

B) The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel.

3. A Pelton wheel develops 1750 kW under a head of 100 m while running at 200 r.p.m and discharging 2500 litres of water per second. The unit power of the wheel is

A) 0.25 kW
B) 0.75 kW
C) 1.75 kW
D) 3.75 kW

Check Answer

C) 1.75 kW

4. Which of the following statement is wrong?

A) The reaction turbines are used for low head and high discharge.
B) The angle of taper on draft tube is less than 8°
C) An impulse turbine is generally fitted slightly above the tail race.
D) A Francis turbine is an impulse turbine.

Check Answer

D) A Francis turbine is an impulse turbine.

5.

A)
B)
C)
D)

Check Answer

C) સુલતાન અહમદશાહ પહેલો

6.

A)
B)
C)
D)

Check Answer

B) ગાંધીનગર

7.

A)
B)
C)
D)

Check Answer

A) મૈત્રક વંશ

8.

A)
B)
C)
D)

Check Answer

C) ચાવડા વંશ

9.

A)
B)
C)
D)

Check Answer

D) શામળદાસ ગાંધી

10.

A)
B)
C)
D)

Check Answer

A) કંડલા

11.

A)
B)
C)
D)

Check Answer

C) અનસુયાબેન

12.

A)
B)
C)
D)

Check Answer

A) ડભોઈનો કિલ્લો – ચૌલાદેવી

13.

A)
B)
C)
D)

Check Answer

A) નાગભટ્ટ-II

14.

A)
B)
C)
D)

Check Answer

A) ભાવનગર

15.

A)
B)
C)
D)

Check Answer

C) ઔરંગઝેબ