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 'Junior Instructor ( Plumber)' And exam conducted in the year 2023. And Question paper code was '021/2023'. 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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021/23
Which type of filler rod contains copper, aluminium, tin along with zinc ?
A) Ferrous filler rod
B)
C) Non-ferrous filler rod
D) Alloy type filler rod for non-ferrous metals
Alloy type filler rod for ferrous metals
The chemical formula for acetylene gas is
A) CH, 8) 0212 0) рен12 0) 04114
What type of solder is used for soldering in heavy [thick] metal ?
A) Soft solder B) Coarse solder
C) Hard solder D) Fine solder
Which maximum diameter pipes can be bend using radius collar bending machine ?
A) 15mm dia B) 20 mm dia
C) 25 mmdia D) 30 mm dia
What size of nozzle number is used to weld 5 mm thick plate ?
A) Nozzle size No. 7 B) Nozzle size No. 18
C) Nozzle size No. 13 D) Nozzle size No. 10
Chemically, lime is mainly
A) Calcium Carbonate B) Calcium Oxide
C) Magnesium Oxide D) Magnesium Nitrate
Which of the following is known as independent scaffolding ?
A) Cantilever scaffolding B) Double scaffolding
C) Suspended scaffolding D) Steel scaffolding
What is the minimum compressive strength of first class bricks ?
A) 120 kg/cm? B) 105 kg/cm?
C) 110 kg/cm? D) 115 kg/cm?