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 'LECTURER IN CHEMICAL ENGINEERING POLYTECHNICS KERALA TECHNICAL EDUCATION' And exam conducted in the year 2015. And Question paper code was '024/2015'. 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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Pure O, is mixed with air to produce an enriched air containing 50 vol% of 0,. The ratio of
moles of air to O, used is :
A) 1.72 (B) 0.58
© 5 യു 05
100 kg of wet solids are to be dried from 80% to 10% mixture (by weight), The mass of
moisture removed in kg is:
ക്ര 78 (B) 82
(©) 98 D) 56
The average molecular weight of air is :
കു 79 ® 21
(0 29 பக
For air at 100% saturation, the dry bulb temperation and wet bulb temperature are
related as :
(ക Dry bulb > wet bulb (3) Dry bulb = wet bulb
(C) Wet bulb > Dry bulb (D) None of these
During the combustion of fuel gas, if the air/ffuel ratio is increased. the adiabate flame
temperature will :
(A) Not change (B) Increase
(0) Increase or decrease (D) Decrease
A gets converted to B according to the reaction A— B, If the conversion of A is 50%, what is
the mole fraction of A in the exit stream?
(ക) 18 ® 12
© 1೫4 ™ 84
Which of the following is there in aviation fuel?
(A) Diesel (ए) Naphtha
(0) Petrol (D) Kerosene
A coal containing very high percentage of durain is called ————— coal.
(A) boghead (B) splint
(©) non-banded (D) bright
Which of the following is not a product of tar distillation?
(ക) Phenol and naphthalene (B) Anthracene and creosote
(£) Benzol and pitch (12) None of these
24/2015 8 A
