1
GATE ME 1998
+2
-0.6
The isentropic heat drop in the nozzle of an impulse steam turbine with a nozzle efficiency $$0.9,$$ blade velocity ratio $$0.5,$$ and mean blade velocity $$150$$ $$m/s$$ in $$kJ/kg$$ is
A
$$50$$
B
$$40$$
C
$$60$$
D
$$75$$
2
GATE ME 1997
+2
-0.6
The following data pertain to a single stage impulse steam turbine:
Nozzle angle $$=$$ $${20^ \circ };$$
Blade velocity $$= 200$$ $$m/s;$$
Relative steam velocity at entry $$= 350$$ $$m/s;$$
Blade inlet $$30;$$
Blade exit angle $$= {25^ \circ }.$$

If blade friction is neglected, the work done per $$kg$$ steam is

A
$$124$$ $$kJ$$
B
$$164$$ $$kJ$$
C
$$169$$ $$kJ$$
D
$$174$$ $$kJ$$
3
GATE ME 1997
+2
-0.6
Consider an actual regenerative Rankine cycle with one open feed water heater. For each $$kg$$ steam entering the turbine, if $$m$$ $$kg$$ steam with a specific enthalpy of $${h_1}$$ is bled from the turbine, and the specific enthalpy of liquid water entering the heater is $${h_2},$$ then $${h_3},$$ the specific enthalpy of saturated liquid leaving the heater is equal to
A
$$m{h_1} - \left( {{h_2} - {h_1}} \right)$$
B
$${h_1} - m\left( {{h_2} - {h_1}} \right)$$
C
$${h_2} - m\left( {{h_2} - {h_1}} \right)$$
D
$$m{h_2} - \left( {{h_2} - {h_1}} \right)$$
4
GATE ME 1997
Subjective
+2
-0
Match the following GATE ME Subjects
Engineering Mechanics
Strength of Materials
Theory of Machines
Engineering Mathematics
Machine Design
Fluid Mechanics
Turbo Machinery
Heat Transfer
Thermodynamics
Production Engineering
Industrial Engineering
General Aptitude
EXAM MAP
Joint Entrance Examination