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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 . And Question paper code was '0/2019/OL'. 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.
B:-gun metal
C:-nickel chrome alloy
D:-brass
Correct Answer:- Option-A
Question49:-The system of water distribution which is suited to a city growing irregularly is .....
A:-grid iron system
B:-radial system
-ring system
D:-tree system
Correct Answer:- Option-D
Question50:-Which tool is used for heating while carrying out soldering .....
A:-torch lamp
-blow lamp
C:-holding lamp
D:-winding lamp
Correct Answer:- Option-B
Question51:-Rubber ring joints can be provided in the pipe line to .....
A:-water free seal
-water tight seal
C:-water peel seal
D:-none of the above
Correct Answer:- Option-B
Question52:-What is the use of hand taps .....
A:-internal threads
-external threads
:-internal gauge
D:-internal drilling
Correct Answer:- Option-A
Question53:-In an acetylene cylinder the acetylene is dissolved in .....
A:-carbon dioxide
B:-water
C:-acetone
D:-mercury
Correct Answer:- Option-C
Question54:-Which grade G | pipe is used for water suppl
A:-yellow
B:-blue
C:-red
D:-brown
Correct Answer:- Option-B
Question55:-The angle of metric thread is .....
A:-60 digree
B:-55 digree
C:-90 digree
D:-47 digree
Correct Answer:- Option-A
Question56:-What are the diameter of A C pipes available in .....
A:-4.cm to 100 cm
B:-5 cm to 100 cm
C:-2 cm to 100 cm
D:-6 cm to 100 cm
Correct Answer:- Option-C
Question57:-Name the tool used to check internal pipe threads .....
A:-pipe taps
B:-ring gauge
C:-pipe plug threads
D:-pipe bush
Correct Answer:- Option-C
Question58:-When pressure test can be started in solvent welder PVC pipe line