1
GATE ME 1998
MCQ (Single Correct Answer)
+1
-0.3
If $$\,\,{V_N}\,\,$$ and $$\alpha $$ are the nozzle exit velocity and nozzle angle in an impulse turbine, the optimum blade velocity is given by
A
$${V_N}\,\,\,\cos \,\,\,2\alpha $$
B
$${V_N}\,\,\,sin\,\,\,2\alpha $$
C
$${{{V_N}\,\,\,\cos \,\,\,\alpha } \over 2}$$
D
$${{{V_N}\,\,\,sin\,\,\,\alpha } \over 2}$$
2
GATE ME 1998
MCQ (Single Correct Answer)
+1
-0.3
A Curtis stage, Rateau stage and a $$50$$% reaction stage in a steam turbine are examples of
A
different types of impulse stages
B
different types of reaction stages
C
a simple impulse stage, a velocity compounded impulse stage and reaction stage
D
a velocity compounded impulse stage, a simple impulse stage and a reaction stage
3
GATE ME 1997
MCQ (Single Correct Answer)
+1
-0.3
Which among the following is the boiler mounting?
A
Blow $$-$$ off cock
B
Feed pump
C
Economizer
D
Super-heater
4
GATE ME 1995
Fill in the Blanks
+1
-0
In adiabatic flow with friction, the stagnation temperature along a streamline ____________ (increase / remains constant)
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