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| Science GK |
Science GK | General Science Questions and Answers for all Competitive exam like SSC CHSL, CGL, HPPSC UPPSC, MPPSC, HPSSSB and Clerks also. You must read all the questions and for more questions click on links which is below the post.
Q.1 The most basic of all test instruments is the
(a) Multimeter
(b) Ohm meter
(c) Cathode Ray Oscilloscope
(d) Galvanometer
Answer :
d
Q.2 The energy gap of diamond of
(a) 1.7 ev
(b) 2.6 ev
(c) 10 ev
(d) 5.47 ev
Answer :
d
Q.3 The positron is called the antiparticle of the electronic, because it
(a) Has opposite change
(b) Has same mass
(c) Annihilates with an electron
(d) Collides with an electron
Answer :
a
Q.4 The radioactive decay follows
(a) N=N0eat
(b) N=N0eat
(c) N=N0e-at
(d) N=N0e-a2t
Answer :
c
Q.5 Y-rays be detected by passing them through
(a) Electric-field
(b) Magnetic field
(c) Electric and magnetic fields
(d) Scintillation counter
Answer :
c
Q.6 Magnetron is used for the production of
(a) X-rays
(b) Cathode rays
(c) Microwaves
(d) Positive rays
Answer :
c
Q.7 The intensity of an earthquake is measured with a
(a) Barometer
(b) Hydrometer
(c) Polygraph
(d) Seismograph
Answer :
d
Q.8 Alternating current is converted into direct current by
(a) Dynamo
(b) Transformer
(c) Rectifier
(d) Motor
Answer :
c
Q.9 The fuse wire is made of
(a) Copper
(b) Tungsten
(c) Nichrome
(d) Lead-Tin alloy
Answer :
d
Q.10 The radiation with highest energy is
(a) UV
(b) IR
(c) X-ray
(d) Visible
Answer :
c
Q.11 What makes the hairs of shaving brush cling together when removed from water?
(a) Viscosity
(b) Surface tension
(c) Cohesion
(d) None of these
Answer :
b
Q.12 As a person moves closer to a plan mirror the size of the image formed by the mirror
(a) Increases
(b) Decreases
(c) First increases and then decreases
(d) Remains the same
Answer :
a
Q.13 A pyrometer is used to measure
(a) Low temperature
(b) High temperature
(c) High pressure
(d) Low pressure
Answer :
b
Q.14 Control rods used in nuclear are made of
(a) Stainless steel
(b) Graphite
(c) Cadmium alloy
(d) Plutonium
Answer :
c
Q.15 Which of the following waves rays are produced by nuclear in the atom?
(a) Infrared rays
(b) Y-rays
(c) X-rays
(d) Lights waves
Answer : b
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