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 'Training Instructor (Plumbing) SC Development Department English ' And exam conducted in the year 2020. And Question paper code was '007/2020'. 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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007/2020 8
What type of flux is used for soldering Copper sheet, Brass sheet and Tin plates ?
(ಹ) Hydrochloric acid (8) Zinc chloride
(C) Ammonium chloride (D) Resin
In torch brazing heat is applied by
(ಹ) Oxy-acetylene flame (B) Electric ore
(C) Spelter (D) Silver solder
Which gases are used for cutting of steel and heating purpose only ?
(A) Oxy acetylene gas flame (B) Oxy hydrogen gas flame
(0 Oxy liquid petroleum gas flame (D) Oxy coal gas flame
Melting point of lead is
(A) 332°C (೫) 350°C
(೧ 32710 (೧) 3790
Which tongs are used for holding round rods horizontally ?
(A) Flattong (8) Square mouth tong
(C) Hollow tong (D) Round Tong
The head of soldering iron is made of
(ಗ) 1೦0 (3) Forged copper
(C) Brass (D) Zinc
Which nut are used light duty assembly which requires frequent removal and fixing ?
(A) Hexagonal nuts (B) Square nuts
(C) Wingnuts (D) Knurled nuts
Soft solder are used for soldering, whose melting point is
(^) less than 300 °C (B) less than 350 °C
(C) 1655 than 400 °C (D) less than 450 °C
Which welding process preferred by weld thick plate ?
(ಹಿ) Tigwelding (B) Thermit welding
(C) Oxy-acetylene gas welding (D) Submerged arc welding
