1
GATE ME 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following statement is TRUE?
A
Both Pelton and Francis turbines are impulse turbines.
B
Francis turbine is a reaction turbine but Kaplan turbine is an impulse turbine.
C
Francis turbine is an axial – flow reaction turbine.
D
Kaplan turbine is an axial – flow reaction turbine.
2
GATE ME 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is NOT a rotating machine?
A
Centrifugal pump
B
Gear pump
C
Jet pump
D
Vane pump
3
GATE ME 2016 Set 3
Numerical
+1
-0
The blade and fluid velocities for an axial turbine are as shown in the figure. GATE ME 2016 Set 3 Turbo Machinery - Turbo Machinery Question 19 English

The magnitude of absolute velocity at entry is $$300$$ $$m/s$$ at an angle of $${65^0}$$ to the axial direction, while the magnitude of the absolute velocity at exit is $$150$$ $$m/s.$$ The exit velocity vector has a component in the downward direction. Given that the axial (horizontal) velocity is the same at entry and exit, the specific work (in $$kJ/kg$$) is ______________.

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4
GATE ME 2016 Set 1
Numerical
+1
-0
Consider two hydraulic turbines having identical specific speed and effective head at the inlet. If the speed ratio $$\left( {{{{N_1}} \over {{N_2}}}} \right)$$ of the two turbines is $$2,$$ then the respective power ratio $$\left( {{{{P_1}} \over {{P_2}}}} \right)$$ is _______________________.
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