Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Instructor Grade I in Chemical Engineering (Engineering Colleges) - Technical Education' And exam conducted in the year 2022. And Question paper code was '67/2022/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.
8:74, 0-3, بحم 5.2
نو رمم 83,52
൧൮.൭൭. 82, 5-4
Correct Answer:- ೦೧000
Question69:-The presence of increases the brilliancy and strength of optical glass and
‘As Potassium carbonate and borax
B:-Barium compounds and red lead oxide
۷۷ء می and boric acid
D-Dolomite and Tin oxide
Correct Answer: Option ®
Question70:-Match the following drugs in Column | with their raw material in Column ۷
1 0
൫ Parathion ೩. Sodium hydroxide
Q. bor. 2. Methanol
3. Ethanol
4. Diviny! benzene
५1, ९-३
8:02, Q-1
CP 3, 0-4
0:84, دو
Correct Answer: Option:
‘Question71:-In the manufacture of soda ash by Solvay process, the cost of product. 85 the tower height
and
with
‘Acincreases, decreases, increases, decreases
Br-increases, increases, decreases, decreases
Cedecreases, increases, increases, decreases
De-decreases, increases, decreases, decreases
Correct Answer: Option ®
Question72::Which one of following processes used in the production of caustic soda ?
‘AcBrine purifier + multistage evaporator + diaphragm cell
Bs-Brine purifier ೨ diaphragm cell + Absorber
C=Brine purifier + diaphragm cell + multistage evaporator
D:-Diaphragm cell + multistage evaporator + Absorber
Correct Answer: Option-C
Question73::Which one of the following process sequences is used in the sugar industry 7
௦170, [Lime treatment + Crystallization + Crushing
B:-Ca,HPO, /Lime treatment + Multiple stage evaporation + Crystallization
C:Crushing + Crystallization ௮ 03/20, (۳۵ treatment
D:-Multiple stage evaporation + 0௨470, /Lime treatment ೨ Crystallization
Correct Answer: Option ®
Question74:-Match the following classification of refractories in Column I with their raw materials in
Column ॥.
॥ ॥
९५०५८ 1. Carbon graphite, chromite
Q. Neutral 2. Alumina, Silica
R. Basic 3. Magnesite, dolomite
4. Copper, silicone
قو ميم 82
8:72, 0-103
कर, 8۸۸3
0೧೫,೦೩೩, ೫-4
Correct Answer: ೦೧0078.
Question75::Which of the following are post Taning operations ?
‘AcDeliming and bathing
B:-Soaking and Liming
C-Shaving, Splitting
imparts high density and high refracting power.
in NaCl losses.