Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Mechanic Grade-II -State Farming Corporation of Kerala Ltd' And exam conducted in the year 2023. And Question paper code was '227/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Steam at 8 bar has a sensible heat of 720 kJ/kg and latent heat of 2045 kJ /kg. If the steam is
80% dry, then the total enthalpy is :
(A) 2765 kd/kg (B) 2356 kJ/kg
(© 2621 kd/kg (D) 2945 kJ/kg
The critical pressure ratio for initially super heated steam is :
(A) 0.528 (B) 0.546
(© 0.577 (D) 0.582
To reduce the speed of impulse turbines to practical limits, the method used is :
(^) Velocity compounding (B) Pressure compounding
(0) Pressure-velocity compounding (D)_ Allof the above
The cycle generally used for gas turbine is :
(A) Rankine cycle (B) Otto cycle
(C) Carnot cycle (D)_ Brayton cycle
In case of reaction steam turbine :
(^) The steam is expanded in nozzle only
(B) The steam is expanded in moving blades only
(C) The steam is expanded both in fixed and moving blades continuously
(D) None of the above
The modulus of Elasticity (EK) and Bulk modulus (K) are related by ———————— (Take
5 5 ٠ 1
Poisson’s ratio = —).
m
_ _ 71. டட ரஹி
ல் ~ B(m—2) ಈ = 3B(m +2)
¢ _ 77 0 1778
© ^= إل 7047]
9 227/2028
[P.T.0.]