1
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 _______________________.
Your input ____
2
GATE ME 2014 Set 4
MCQ (Single Correct Answer)
+1
-0.3
Kaplan water turbine is commonly used when the flow through its runner is
A
axial and the head available is more than 100 m
B
axial and the head available is less than 10 m
C
radial and the head available is more than 100 m
D
mixed and the head available is about 50 m
3
GATE ME 2013
MCQ (Single Correct Answer)
+1
-0.3
In order to have maximum power from a Pelton turbine, the bucket speed must be
A
equal to the jet speed.
B
equal to half of the jet speed.
C
equal to twice the jet speed.
D
independent of the jet speed.
4
GATE ME 2010
MCQ (Single Correct Answer)
+1
-0.3
A phenomenon is modeled using $$n$$ dimensional variables with $$k$$ primary dimensions. The number of non-dimensional variables is
A
$$k$$
B
$$n$$
C
$$n-k$$
D
$$n+k$$
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