Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'STATION OFFICER TRAINEE FIRE AND RESCUE SERVICES' And exam conducted in the year 2015. And Question paper code was '080/2015'. 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.
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The apparent weight of a person in a freely falling elevator is :
(4) Infinity © 9.8Kg
(C) 98gm D) Zero
The existence of which elementary particle was confirmed by the data from Large Hadron
Collider LHC in 20137
(ಗಿ) Quarks (ए) Higgs Boson
(C) Tau Mesons (D) Electron
According to Theory of Relativity the time interval measured in a frame moving with very
high speed is :
(കു Shorter than proper time (B) Longer than proper time
(¢) Equal to proper time (D) None of these
The value of velocity of sound in air is :
കു 3331.6m/s (B) 333.16 m/s
(8 38.16 6 (D) 3.31 "8
In LASERs, if N. is number of atoms in ground level and N, that in higher energy level, the
population inversion 18 achieved when :
(A) N> N, ® N>
(0) (D) None of these
A pencil is viewed through a calcite erystal. Two images are seen. The cause of this
phenomenon 18 :
(ക) Diffraction (ए) Interference
(0) Double refraction (D) None of these
In radioactivity, the radiation which is produced by the transformation of particles in the
nucleus is :
(ಗ) Alpha rays (B) Beta rays
(0 Gamma rays (D) Infra red rays
The part of electromagnetic radiation with smallest wavelength is :
(ಗೆ) Radio waves (B) Visible spectrum
(ಲ) X-ray (D) Gamma ray
A gaseous plant hormone is :
(ക) Auxin (B) Ethylene
(C) ٦٣ (D) Cytokinin
80/2015 4 A
