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Free gk questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. A high potential is applied to the final anode of a cathode ray tube in order to
(a)
increase beam current
(b)
increase tube sensitivity
(c)
deflect electrons
(d)
acceleration electrons
2. Earth and water
(a)
absorb long wave radiation and long wave radiation
(b)
absorb short wave radiation and emit short wave radiation
(c)
absorb long wave radiation and emit short wave radiation
(d)
absorb shortwave radiation and emit long wave radiation
3. On applying a constant force to a mass, it moves with a uniform
(a)
acceleration
(b)
momentum
(c)
angular velocity
(d)
velocity
4. Urea plastic is used in
(a)
transformers cores
(b)
capacitor dielectrics
(c)
radio receiver cabinets
(d)
all of the above
5. Which variety of copper has the best mechanical strength?
(a)
soft copper
(b)
cast copper
(c)
hard drawn copper
(d)
annealed copper
6. Diamond and Emerald are made of
(a)
carbon and beryllium
(b)
carbon and carbon
(c)
silica and silica
(d)
silica and beryllium
7. The phenomenon of light which explains the transverse nature of light waves is
(a)
dispersion
(b)
polarization
(c)
refraction
(d)
reflection
8. Which of the following materials has the highest value of Poisson’s ratio
(a)
aluminium
(b)
copper
(c)
rubber
(d)
steel
9. The distance from crest to crest of any wave is called its
(a)
amplitude
(b)
speed
(c)
wavelength
(d)
frequency
10. Ferrites are
(a)
anti-ferro-magnetic
(b)
paramagnetic
(c)
ferri-magnetic
(d)
ferro-magnetic
