Kerala PSC Previous Years Question Paper & Answer
Page:13
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Assistant Professor (Chemical Engineering)' And exam conducted in the year 2023. And Question paper code was '026/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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:-Coagulation
Disinfection
D-Softening
Correct Answer: Option-D
Question91:-Chemical composition of producer gas.
معدم = 15, COg = 35, HO = 25, N= 25
8-C Hy, = 47. COy= 10, Hy = 13, Ny 30
C-H 90 = 15, COy = 25, Hy = 40, N= 20
DCO = 30, COz = 5, Hy =
4, N9= 51
Correct Answer: Option-D
Question92:-Match the common name of the chemicals in Group - 1 with their chemical formula in Group -2
Group - 1 Group -2
P.Soda ash |. NaHCO;
0. Baking soda ۷ NayCO310H,0
R Caustic soda tN, NaOH
S.Washing sodas. Na CO
A=PAV, Qu, Rell, Sl
Be-P-lV, Quill, Rll, S-1
1. Q-tl, Pell, S-
Pell, 9-1, Rell, SIV
Correct Answer:- OptionA
‘Question93:-Match the chemicals in Group - 1 with their industrial production process in Group - 2
Group - 1 Group - 2
P. Sulphuric acid |. Solvay process,
Q. Nitric acid I. Wet process,
R. Phosphoric acid Ill. Contact process
5. Soda ash. IV. Ostwald process
A=Palll, Qe, RAV, Sl
உ॥, 04 ೧-೪5-1
OAV, Rll, Sl
D Pill, QU, RA, SV
Correct Answer:- Option-C
Question94:-Octane number following the order
AcAromaties < Olefins < Isoparaffins < Naphthenes
B:-Olefins < Naphthenes < Isoparaffins < Aromatics
C:-Olefins < Isoparaffins < Naphthenes < Aromatics
-Isoparaffins > Naphthenes < Olefins < Aromatics
Correct Answer:- Option-C
‘Question95 -The setting and hardening of cement paste is due to hydration and hydrolysis of
ய silicate (035)
B:-Di calcium silicate (C25)
(Cri calcium aluminate (C3A)
Dell the above
Correct Answer:- Option-D
Question96:-The role of phosphorus present in the fertilizers is
‘A=Essential for the development of stems and leaves
B:-Stimulates growth and accelerates fruit and seed formation
CEssential for the development of starches, sugars and fibers and helps to prevent disease
Di-None of the above
Correct Answer:- Option-8
Question97:-Hydrogen is obtained from methane by a process called
As Hydrogenation
8:-Catalytic cracking
C=1somerisation
Steam reforming
Correct Answer:- Option-D
‘Question98 :-Match the catalyst used in the production of following chemicals
Group -1 Group -2
P. Sulphuric acid 1. PUR
Q. Nitric acid டம
R Ammonia ॥: 7205६
S. Hydrogenation of oll. Fe
A=Palll, Qe, RAV, Sl
ടം