ME GATE 2010 - Online Test
Q1. In a steam power plant operating on the Rankine cycle, steam enters the turbine at
4MPa, 350ºC and exits at a pressure of 15kPa. Then it enters the condenser and exits as
saturated water. Next, a pump feeds back the water to the boiler. The adiabatic
efficiency of the turbine is 90%. The thermodynamic states of water and steam are
given in the table.
h is specific enthalpy, s is specific entropy and v the specific volume; subscripts f and g
denote saturated liquid state and saturated vapour state.
The net work output (kJ kg-1) of the cycle is
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. For the stability of a floating body, under the influence of gravity alone, which of
the following is TRUE?
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. In a steam power plant operating on the Rankine cycle, steam enters the turbine at
4MPa, 350ºC and exits at a pressure of 15kPa. Then it enters the condenser and exits as
saturated water. Next, a pump feeds back the water to the boiler. The adiabatic
efficiency of the turbine is 90%. The thermodynamic states of water and steam are
given in the table.
h is specific enthalpy, s is specific entropy and v the specific volume; subscripts f and g
denote saturated liquid state and saturated vapour state.
Heat supplied (kJ kg-1) to the cycle is
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. A shaft has a dimension, 
The respective values of fundamental deviation
and tolerance are
The respective values of fundamental deviation
and tolerance are
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. Torque exerted on a flywheel over a cycle is listed in the table. Flywheel energy
(in J per unit cycle) using Simpson’s rule is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. A band brake having band-width of 80mm, drum diameter of 250mm, coefficient
of friction of 0.25 and angle of wrap of 270 degrees is required to exert a friction
torque of 1000N-m. The maximum tension (in kN) developed in the band is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. A bracket (shown in figure) is rigidly mounted on wall using four rivets. Each rivet
is 6mm in diameter and has an effective length of 12mm.
Direct shear stress (in MPa) in the most heavily loaded rivet is
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. A mass m attached to a spring is subjected to a harmonic force as shown in
figure. The amplitude of the forced motion is observed to be 50mm. the value of
m (in kg) is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. For the epicyclic gear arrangement shown in the figure, ω2 = 100rad / s clockwise
(CW) and ωarm = 80rad / s counter clockwise (CCW). The angular velocity ω5 (in rad/s) is
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. A lightly loaded full journal bearing has a journal of 50mm, bush bore of
50.05mm and bush length of 20mm. if rotational speed of journal is 1200rpm
and average viscosity of liquid lubricant is 0.03 Pa s, the power loss (in W) will be
Answer : Option A
Explaination / Solution:
No Explaination.
