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 'Security Officer' And exam conducted in the year 2023. And Question paper code was '140/2023/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.
heating and extends from the surface of earth upto a height of 8-10 km?
A:-Stratosphere
B:-Troposphere
C:-Ozonosphere
D:-Mesosphere
Correct Answer:- Option-B
Question45:-Moseley's law for characteristic X rays is
^; - = ए(2-०)
B:-w=a(z-0)
മിര്)
D:-v=a(z-2)
Correct Answer:- Option-B
Question46:-The force acting on a body is doubled and mass is halved. What will be
the ratio of its accelerations?
2ھ
B:-2:1
C:-1:4
D:-4:1
Correct Answer:- Option-C
Question47:-lmage formed by a concave mirror
A:-is always real
B:-is always virtual
C:-is certainly real if object is virtual
D:-is certainly virtual if object is real
Correct Answer:- Option-C
Question48:-What is IRNSS?
A:-Lunar Probe
B:-Navigation satellite
C:-Military satellite
D:-None of the above
Correct Answer:- Option-B
Question49:-Heterocyclic ring structure present in Lobeline
A:-Quinoline
B:-Pyrrolidine
C:-lsoquinoline
D:-Piperidine