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Free download in PDF Turbines Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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
(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
(4)
A hydraulic turbine converts the potential energy of water into
[A]
Gravitational energy
[B]
Heat energy
[C]
Kinetic energy
[D]
Thermal 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
(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
(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
(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
(11)
In Propeller turbine, the water flows ___ through the runner.
[A]
Axially
[B]
Radially
[C]
Tangentially
[D]
None Of The Above
(12)
The following converts the dynamic pressure (kinetic energy) into static pressure
[A]
Draft tube
[B]
Conduits
[C]
Penstock
[D]
Runner
(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
(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
(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
(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)
(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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