Turbines Quiz | Turbines Multiple Choice Questions and Answers

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Questions
1 Which kind of turbine is a Fourneyron Turbine?
A Outward flow turbine
B Radial flow turbine
C Mixed flow turbine
D Inward flow turbine

Answer: Outward flow turbine
2 Which type of turbine is a Francis Turbine?
A Reaction turbine
B Impulse Turbine
C Screw Turbine
D Turgo turbine

Answer: Reaction turbine
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3 Which type of turbine is used to change the velocity of the water through its flow?
A Impulse turbines
B Reaction turbines
C Kinetic turbines
D Axial flow turbines

Answer: Impulse turbines
4 A hydraulic turbine converts the potential energy of water into
A Gravitational energy
B Heat energy
C Kinetic energy
D Thermal energy

Answer: Kinetic energy
5 Reaction turbine requires
A Low head and low discharge
B Low head and high discharge
C High head and low discharge
D High head and high discharge

Answer: Low head and high discharge
6 Hydraulic turbine converts hydro energy into mechanical by using ___ of water.
A Potential energy
B Kinetic energy
C both (A) and (B)
D None of the above

Answer: both (A) and (B)
7 The power available in stream of water is
A η.ρ/g.h.q
B η.ρ.g.h/q
C η.ρ.g/h.q
D η.ρ.g.h.q

Answer: η.ρ.g.h.q
8 The Pelton turbine is
A mixed flow impulse turbine
B tangential flow impulse turbine
C radial flow impulse turbine
D axial flow impulse turbine

Answer: tangential flow impulse turbine
9 Surge tank is usually utilized in those plants where distance between the forebay and the turbine is
A Large
B Medium
C Small
D Any Of The Above

Answer: Large
10 The water compressibility effect produces traveling waves of pressure and is usually called
A water hammer
B water impact
C water force
D water pressure

Answer: water hammer
11 In Propeller turbine, the water flows ___ through the runner.
A Axially
B Radially
C Tangentially
D None Of The Above

Answer: Axially
12 The following converts the dynamic pressure (kinetic energy) into static pressure
A Draft tube
B Conduits
C Penstock
D Runner

Answer: Draft tube
13 Following is an impulse turbine
A Petlon wheel turbine
B Tubular turbine
C Propeller turbine
D Francis turbine

Answer: Petlon wheel turbine
14 Kaplan turbine is a propeller turbine having vanes on rotor are:
A Non-Adjustable
B Adjustable
C Fixed
D None Of The Above

Answer: Adjustable
15 The specific speed (Ns) of a turbine is given by:
A Ns = NP1/2/H3/4
B Ns = NQ1/2/H3/4
C Ns = NP1/2/H5/4
D Ns = NQ1/2/H5/4

Answer: Ns = NP1/2/H5/4
16 The discharge through a single acting reciprocating pump having speed N rpm is:
A 60 LAN
B 120 LAN
C 2 LAN/60
D LAN/60

Answer: 2 LAN/60
17 The force exerted by a jet of water on a stationery vertical plate in the direction of jet is given by:
A ρAV2
B ρAV2 (1+Sinθ)
C ρAV2Sinθ
D ρAV2 (1+Cosθ)

Answer: ρAV2
18 Hydraulic ram is a pump which works
A on the principle of centrifugal action
B on the principle of reciprocating action
C on the principle of water hammer
D none of the above

Answer: on the principle of water hammer
19 Hydraulic gradient line represents the sum of
A pressure head and datum head
B pressure head, kinetic head and datum head
C pressure head and kinetic head
D kinetic head and datum head

Answer: pressure head and datum head
20 Pelton wheel is used in those place where
A high head and low discharge are available
B low head and high discharge are available
C high head and high discharge are available
D none of the above

Answer: high head and low discharge are available

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