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 MACHANICAL ENGINEERING POLYTECHNICS TECHNICAL EDUCATION' And exam conducted in the year 2014. And Question paper code was '003/2014'. 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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The welding zone in the TIG are welding is shielded by an atmesphere 0೯:
(ಗಿ) വല്ല ೮೩8 (8) €Oz
(0 Hydrogen (D) Helium
Which of the following welding techniques uses a non consumable electrode?
ക 1/6 @) TIG
(C) Submerged arc (1) Thermit
Vacuum environment is required in : ∙
(4) Ulfrasonic welding (18) مما beam welding
(0) Electron beam welding (D) None
High ലാട electron heam of electron 1 welding is focused on the weld spot using : +
(A) Vacuum lens. (0) 17020 588 1೧೧೩
() Optical lens (D) Magnetie lens
0 iron is usually welded using the following method :
(ക TIG _ (0) MIG
(0) ಹಂ (D) Gas
Weld spatter is : :
(A) awelding defect (1) an electrode
(0) aflux (2) none
All of the following are units of thermal conductivity except : )
(ക) keal/m-hr-°C (B) kjfm-hr-k
)0 Wim-s-k ∙ ¢ (D) ecaliem-s-°C
A compesite wall of a furnace has two layers of equal thickness with thermal conductivities
in the ratio 3 : 2. What is the ratio of temperature drop across the two layers :
ക 8 (B) 3:2
நண் (1) None
Critical thickness of insulation for a sphere with thermal conductivity k and convective heat
transfer coefficient h is given by
(५) 2kh ஐ ناا
മ யக (D) حا
3/2014 8 A
