Kerala PSC Previous Years Question Paper & Answer
Page:1
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'CHEMIST IN FACTORIES AND BOILERS ENGLISH ' And exam conducted in the year 2020. And Question paper code was '009/2020'. 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.
009/2020
Maximum : 100 marks
Time : 1 hour and 15 minutes
1. Which of the following is a carbonate ore?
{A) Magnetite (B) Siderite
€) Rutile (D) Pyrolusite
2. Nitriding is the process of :
{A) heating steel with ammonia
{B) heating steel with nitrogen oxides
{C) heating steel with nitrogen gas
{D) keeping steel in inert atmosphere
8. Which of the following is an acidic refractory material?
(മ Graphite (B) Silica
{C) Carborundum യ) Dolomite
4. Addition of sodium dichromate to molten glass imparts colour to glass.
வ دہہ<ة ற Yellow
(0) Red യ Violet
5. Cinnabarisore of :
4) ए © Hg
(0) Sn (फ) पप
6. NPKvalue of a fertilizer denotes the nitrogen, phosphorous and potassium contents in terms
of respectively.
{A) Elementary nitrogen, P,0;, K,0
ற N20, elementary phosphorous, elementary potassium
)0 Elementary nitrogen, elementary phosphorous, elementary potassium
(0) 0, 206, दा
7. Alnicoisanalloyof :
(| Cu, Ni, Al Co {B) Fe, Co, Al,Ni
0 Al Co, Ni (D) AL Nj Cu
[P.T.O.]
