Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Laboratory Assistant Common Facility Service Centre' And exam conducted in the year 2023. And Question paper code was '019/2023/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.
A:-Always transverse
B:-Always longitudinal
C:-Can be either longitudinal or transverse
D:-Electromagnetic in nature
Correct Answer:- Option-C
Question29:-Distance between two consecutive points with the same phase of a
wave is
A:-lts frequency
B:-Its propagation constant
C:-lts amplitude
D:-Wavelength
Correct Answer:- Option-D
Question30:-Acoustic echo happens due to
A:-Reflection of sound
B:-Refraction of sound
C:-Doppler effect
D:-Interference of sound
Correct Answer:- Option-A
Question31:-According to Joule's law, the heat generated in a current carrying
conductor is given by
മം
بتجرر: تا
(:-7२४/४
ಔ:-773/:
Correct Answer:- Option-A
Question32:-If two equal resistances R and R are connected in series and parallel
configurations, then which statement is correct ?
A:-Effective resistance of series combination is 22
B:-Effective resistance of parallel combination is R/2
C:-Both series and parallel combinations have same effective resistance
D:-Effective resistance of series combination is R/2
Correct Answer:- Option-B
Question33:-Alloy of tin and lead is generally used as fuse wires because
A:-It has very high melting point
B:-It has low melting point
C:-It never heats up
D:-No current flows through it