## Kerala PSC Previous Years Question Paper & Answer

Title : ASST ENGINEER MECHANICAL TTP LTD / ASST ENGINEER MECHANICAL SFC OF KERALA LTD
Question Code : A

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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ASST ENGINEER MECHANICAL TTP LTD / ASST ENGINEER MECHANICAL SFC OF KERALA LTD' And exam conducted in the year 2015. And Question paper code was '147/2015'. 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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Excerpt of Question Code: 147/2015

147/2015

o

Maximum : 100 marks

Time : 1 hour and 15 minutes

A cycle consists of two isothermal and two isentropic processes is known as :
(A) Otto cycle (B) Joule cycle
(C) Stirling cycle (D) ‘Carnot cycle

In an isometric projection the radius of a sphere it is equal to :
(A) 082R ) ‏٠‎

The function of stcam nozzle is to convert :
(ಗೆ) heat energy steam into kinetic energy
(8) heat energy steam into rotational energy
(C) kinetic energy into heat energy of steam
(D) heat energy steam into pressure energy

Dryness fraction is the ratio of :
(ಗಿ) mass of dry steam to the mass of water vapour in suspension

(18) mass of water vapour in suspension to the mass of water vapour and mass of dry
steam

(0) mass of dry steam ‏ما‎ the mass of dry steam and mass of water vapour in
suspension

(D) mass of water vapour in suspension to the mass of dry steam

If the thermal efficiency of Carnot heat engine is 50 percent, then coefficient of performance
of a refrigerator working within the same temperature limit would be :

@ 1 (8) 2
During throttling process :
(A) internal energy does not change (8) pressure does not change
(C) அல்ப does not change (D) enthalpy does not change

Which one of the following parameter is significant to ascertain chemical equilibrium of a
system?

(A) . Clapeyron ग equation ൫) Maxwell relation

( Gibb’s function (D) Helmholtz function

[P.T.O.]