General Science & Ability MCQs 2009

"Black holes" refer to:
A) Holes occurring in heavenly bodies
B) Bright spots on the sun
C) Collapsing objects of high density
D) Collapsing objects of low density

Cooking gas is a mixture of which of the following two gases?
A) Methane and Carbon Dioxide
B) Oxygen and Nitrogen
C) Oxygen and Methane
D) None of these

Eugenics is the study of:
A) Altering human beings by changing their genetic components
B) People of European origin
C) Different races of mankind
D) Genetics of plants

The position of Earth in its orbit, when it is at its greatest distance from the sun causing northern summer, is called:
A) Aphelion
B) Perihelion
C) Perigee
D) Apogee

Diamond is a very expensive ornament. It is composed of a single element:
A) Carbon
B) Gold
C) Silver
D) Platinum

Which of the following layers makes radio transmission possible?
A) Troposphere
B) Ionosphere
C) Mesosphere
D) Stratosphere

Which of the following explains the reason why there is no total eclipse of the sun?
A) Size of the Earth in relation to that of the moon
B) Orbit of the moon around Earth
C) Direction of rotation of Earth around the sun
D) Area of the sun covered by the moon

Television signals are converted into light signals by:
A) Optical fiber
B) Transistor
C) Decoder
D) Photodiode

Where do most 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

The number of spark plugs needed in a diesel engine is:
A) 0
B) 1
C) 2
D) 4