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 'Welfare Organiser' And exam conducted in the year 2022. And Question paper code was '005/2022/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.
Question67:-Astigmatism can be corrected using
‘AcGylindrical lens
B:-Convex lens
CConcave lens
D-Bifocal lens
Correct Answer:- Option-é
Question68:-In the modern periodic table, the period indicates the value of
0
B:-Atomic mass
C=Principal Quantum number
D-Azimuthal Quantum number
Correct Answer:- Option-é
‘Question69::Which of the following statements is incorrect in relation to ironization enthalpy ?
1. irenization enthalpy increases for each successive electron,
2. the penetration effect will not affect the ironization enthalpy
3. ironization enthalpy is the energy used for the withdrawal of an atom form its gaseous atom
4, Helium has the largest firs ironization enthalpy.
Correct Answer: Option ®
Question70:-Alloy steels are prepared by adding other metal to steel. Stainless Steel, Alnico and Nichrome are the main alloys of steel. Which alloy/alloys is/are used for the production
of heating coil ?
AcAlnico
B:-Alnico and Nichrome
ಮ Stainless Steel
D:-Nichrome
Correct Answer:- Option-D
Question71::With reference to the properties of crystalline solids, consider the following statements.
1. They have irregular shape
2.They melt at a sharp and characteristic temperature.
3. They gradually soften over a range of temperature,
4, When cut with a sharp edged tool, they split in to two pieces having generated plain and
‘smooth surfaces,
and 4 are TRUE نم
Bel, 2and 4 are TRUE
C-Only 3 is TRUE
Deland 4 are TRUE
Correct Answer:- Option-é
Question72:-Consider the following statements in the context of hybridisation of chemical bonding.
The number of hybrid orbitals are equal to the number of the atomic orbitals that get hydribised. .1
The hybridised orbitals are not equivalent in energy and shape .2
The hybrid orbitals are more effective in forming stable bonds than the pure atomic orbitals. .3
‘AcOnly Land 4 are correct
B:-Only 2 and 4 are correct
C-Only 1 and 3 are correct
are correct 0:21
Correct Answer:- Option-C
Question73:-Among the following, which are the Indian players, who won Gold medal in Olympics 2020 held in Tokyo 7
1. Ravikumar Dahiya