10 Important General Science MCQs for most of the competitive exams
Que 1: Which one of the following glands produces the growth hormone (somatotrophin)?
(A) Adrenal
(B) Pancreas
(C) Pituitary
(D) Thyroid
Correct Ans: C
Que 2: Carbon dioxide is called a greenhouse gas because
(A) its concentration remains always higher than other gases
(B) it is used in photosynthesis
(C) it absorbs infrared radiation .
(D) it emits visible radiation
Correct Ans: C
Que 3: Laser is a device to produce
(A) a beam of white light
(B) coherent light
(C) microwaves
(D) X rays
Correct Ans: B
Que 4: In the human body, Cowper's glands form a part of which one of the following system?
(A) Digestive system
(B) Endocrine system
(C) Reproductive system
(D) Nervous system
Correct Ans: C
Que 5: Mist is a result of which one of the following
(A) Condensation
(B) Evaporation
(C) Sublimation
(D) Saturation
Correct Ans: A
Que 6: Fat can be separated from milk in a cream separation because of
(A) cohesive force
(B) gravitational force
(C) centrifugal force
(D) centripetal force
Correct Ans: C
Que 7: The average fixed cost curve will always be
(A) a rectangular hyperbola
(B) a downward sloping convex to the origin curve
(C) a downward sloping straight line
(D) a U-shaped curve
Correct Ans: A
Que 8: Malaria in the human body is caused by which one of the following organisms?
(A) Bacteria
(B) Virus
(C) Mosquito
(D) Protozoan
Correct Ans: D
Que 9: The focal length of convex lens is
(A) the same for all colours
(B) shorter for blue light than for red
(C) shorter for red light than for blue
(D) maximum for yellow light
Correct Ans: B
Que 10: Which one of the following is not a constituent of biogas?
(A) Methane
(B) Carbon dioxide
(C) Hydrogen
(D) Nitrogen dioxide
Correct Ans: D
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