Kerala PSC Previous Years Question Paper & Answer
Page:2
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 '167/2023'. 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.
(A)
(0)
Acetylene
Oxygen
9. What is the use of flux?
(A)
(0)
10. Filler material used in brazing is known as:
(A)
(0)
11. Head of soldering iron is made by :
(A)
(0)
For quick welding
For joining the sheets
solder
flux
Brass
Cast iron
Which blow pipe valve is shut off first while back fire?
(B) Carbon dioxide
0) Nitrogen
(B)_ To bind the solder
(D) To remove oxides
(B) spelter
(D) alloy
(B) Copper
(D) High carbon steel
12. A small explosion of the flame during flame ignition in gas welding is known as:
(A)
(0)
Back fire
Flash back
(B) Shut off fire
(D) Flash fire
13. Which valve is shut off first while extinguishing the flame?
(A)
(0)
14. What is the colour of oxygen cylinder?
(A)
(0)
15. Gloves used while welding is made of :
(A)
(0)
Oxygen
Carbon dioxide
Black
Red
Leather
Rubber
(B) Nitrogen
(D) Acetylene
(B) Brown
(D) Maroon
(3) Asbestos
(D) Plastic
16. What is the maximum compressive strength of third class bricks?
(A)
(0)
17. Refractory bricks are also known as:
(A)
(0)
167/2028
35 kg/cm?
45 kg/cm?
Hollow bricks
Perforated bricks
(B) 40 kg/cm?
(D) 50 kg/cm?
(B)_ Fire bricks
(D) Country burnt bricks