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Hydraulic Machines
Hydraulic Machines Assessment
Quiz 1
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Q.1
Constant head curves are also called as _______
a) Head race curves
b) Tail race curves
c) Main characteristic curves
d) Impeller curves
Q.2
The speed of the turbine in a constant head curve is varied by __________
a) Temperature change
b) Reaction speed change
c) Changing the gate opening
d) Wheel speed change
Q.3
Constant speed curves travel at constant speed when the value is equal to _______
a) 0
b) 1
c) 2
d) 3
Q.4
Power of a turbine is measured ______
a) Mechanically
b) Electrically
c) Chemically
d) Thermally
Q.5
Which among the following is not a parameter to determine the efficiency of the turbine?
a) Unit speed
b) Unit power
c) Unit volume
d) Unit discharge
Q.6
Which among the following is not an important parameter to determine the performance of the turbine?
a) Speed
b) Discharge
c) Head
d) Volume of tank
Q.7
Which among the following is not a type of curve?
a) Logarithimic curve
b) Straight curve
c) Pressure vs power
d) Efficiency vs speed
Q.8
The inlet passage of water entry is controlled by ________
a) Head race
b) Gate
c) Tail race
d) Pump
Q.9
Overall efficiency vs what is drawn to determine the turbine performance?
a) Unit Discharge
b) Unit speed
c) Unit power
d) Unit pressure
Q.10
Constant discharge takes place due to _______
a) Unit Discharge
b) Unit speed
c) Unit power
d) Unit pressure
Q.11
All the characteristic curves are drawn with respect to __________
d) Unit pressure
a) Unit Discharge
b) Unit speed
c) Unit power
Q.12
Constant head curves are also called as _______
a) Head race curves
b) Tail race curves
c) Main characteristic curves
d) Impeller curves
Q.13
In constant speed curves, the speed is kept a constant varying its head.
a) True
b) False
Q.14
In all the characteristic curves, the overall efficiency is aimed at the maximum value.
a) True
b) False
Q.15
Constant efficiency curves are plotted using _______
a) Constant head curves
b) Constant speed curves
c) Main characteristic curves
d) Constant speed and constant head
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