Physics questions and answer for Railway Exams PDF
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Question 1: Light year is the
a) Distance travelled by light in one year
b) Mean distance between the Earth and the Sun
c) Mean distance between the Earth and the Moon
d) Mean distance between the Sun and any planet
Question 2: Who discovered the fact that _____”An electric current produces a circular magnetic field as it flows through a wire” ?
a) Oersted
b) Faraday
c) Fleming
d) Coulomb
Question 3: The cathode rays are
a) Streams of electrons
b) Streams of positively charged particles
c) Streams of neutral particles
d) Electromagnetic Waves
Question 4: A freely suspended bar magnet always remains in the direction
a) North – South
b) East – West
c) South – West
d) Not – certain
Question 5: The SI unit of the specific resistance is
a) Ohm/metre
b) Ohm/$metre^{2}$
c) Ohm – metre
d) Ohm
Question 6: Newton/kg is a unit of
a) Acceleration
b) Force
c) Efficiency
d) Energy
RRB Group D previous year papers
Question 7: Which of the following is a unit of length in the old imperial and the U.S. customary systems, used especially for measuring the depth of water?
a) Nautical Mile
b) Fathom
c) Yards
d) Cable length
e) Feet
Question 8: Which term is used for the act of attempting to acquire information by masquerading as a trustworthy entity in an electronic communication?
a) Scamming
b) Phishing
c) Spoofing
d) Phreaking
e) Spamming
Question 9: If the speed of rotation of earth increases, then mass of earth would
a) Decrease
b) Increase
c) No effect
d) May increase or decrease depending upon the speed of rotation
Question 10: Radio waves reflect back from which layer of the earth’s atmosphere ?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Ozone layer
RRB Group D previous year papers
Question 11: If a ship comes to sea water’. from river water, then its bottom will
a) Rise due to buoyancy
b) Rise in water due to more mass of water
c) Same in both sea or river water
d) None of these
Question 12: The rapid sliding of large masses of bed rocks is called
a) Mass wasting
b) Landslide
c) Earthquake
d) Weathering
Question 13: Which of the following is false?
Sound waves are ………… waves.
a) Pressure
b) Longitudinal
c) Electromagnetic
d) Mechanical
Question 14: The filament of a light bulb is made up of
a) Platinum
b) Tantalum
c) Tungsten
d) Antimony
Question 15: In 1831, electricity became viable for use in technology when ________ created the electric dynamo.
a) Benjamin Franklin
b) Alessandro Volta
c) Michael Faraday
d) Thomas Edison
RRB Group D previous year papers
Answers & Solutions:
1) Answer (A)
2) Answer (A)
3) Answer (A)
4) Answer (A)
5) Answer (C)
RRB Group-D Important Questions (download PDF)
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6) Answer (A)
7) Answer (B)
8) Answer (B)
9) Answer (A)
10) Answer (A)
11) Answer (A)
12) Answer (B)
13) Answer (C)
14) Answer (C)
15) Answer (C)
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