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 'INSTRUCTOR GRADE I MECHANICAL ENGINEERING ENGINEERING COLLEGES' And exam conducted in the year 2017. And Question paper code was '093/2017'. 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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During which component of vapour compression relrigeration system, the enthalpy remains
constant
(A) Compressor ൫) Condenser
(C) Evaporator (ಐ) Throttle valve
During dehumidification process of removing moisture the dry bulb temperature
(A) decreases (8) ண
(C) remains constant (D) unpredictable
In winter air conditioning the air is
(ക) cooled and humiditied (B) heated and humiditied
(€) cooled and dehumidificd യ) heated and dehumidified
The three dimensional steady state heat conduction equation with internal heat generation is
known as
(ക) Poisson equation (8) Laplace equation
(6) Fourier equation (D) Momentum eguation
In a free convection the product of Grashoff and Prandtl numbers appears often and is called
(ക) Nusselt number (18) Reynolds number
(C) Kirchoff number (D) Rayleigh number
Heat transfer from the surface to the fluid within the boundary layer is maximum in the
ക) laminar region (B) transition region
(D) All of the above
کرو سن )©(
Fouling factor in a heat exchanger
(ക) increases the resistance of heat transfer
(B) decreases the resistance of heat transfer
(5) keep the resistance for heat transfer constant
(D) Nong of the above
The total emissive power (W/m”) of a black body at 100° K is
(ക) 5669 (8) 56.69
(೧) 5669 (13) 5660
093/2017 6 A
