A. Infra-red
B. Ultraviolet
C. X-rays
D. Gamma rays
E. None of these
Show AnswerAnswer= Option B
Environmental Science
Which one of the following is a non-metallic mineral?
A. Manganese
B. Magnesium
C. Gypsum
D. Bauxite
E. None of these
Show AnswerAnswer= Option C
Sedimentary rocks are__________?
A. Porous
B. Hard
C. Rough
D. Brittle
E. Volcanic
Show AnswerAnswer= Option A
A moderator is used in nuclear reactor in order to ?
A. Accelerate the neutrons
B. Slow down the speed of the neutrons
C. Increase the number of elections
D. Decrease the number of electrons
E. None of these
Show AnswerAnswer= Option B
Which of the following atmospheric layers help in radio communication?
A. Exosphere
B. Ionosphere
C. Troposphere
D. Stratosphere
E. Ozone layer
Show AnswerAnswer= Option B
Monsoon is caused by____________________?
A. Seasonal reversal of winds
B. Revolution of earth
C. Movement of clouds
D. Rise in temperature
E. Rain forests
Show AnswerAnswer= Option A
Fuel used in a Fast Breeder Reactor is _____________?
A. Uranium Oxide
B. Uranium Plutonium carbide
C. Uranium Plutonium Oxide
D. Uranium thorium Oxide
E. None of these
Show AnswerAnswer= Option C
The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?
A. 4 days
B. 12 days
C. 16 days
D. 8 days
E. None of these
Show AnswerAnswer= Option D
The number of spark plugs needed in a diesel engine is__________?
A. 2
B. 3
C. 0
D. 4
E. None of these
Show AnswerAnswer= Option C
Where do most of Asteroids lie?
A. In asteroid belt between the orbits of Mars and Jupiter
B. In asteroid belt between the orbits of Mars and Venus
C. In asteroid belt between the orbits of Jupiter and Venus
D. Everywhere in the sky
E. None of these
Show AnswerAnswer= Option A