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30000+ Important MCQs for POLICE SI
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Learn POLICE SI MCQs with answers [Page -1 of Department 70]
-19) Which of the most reactive metal?
(A) Sodium
(B) Calcium
(C) Iron
(D) Potassium
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-18) Alcoholic fermentation is brought about the action of
(A) yeast
(B) CO2
(C) O2
(D) CO
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-17) Enzymses are
(A) carbohydrates
(B) lipids
(C) proteins
(D) None of these
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
-16) Smoke is a colloidal dispersion of a
(A) Solid in a gas
(B) Liquid in a gas
(C) Gas in a solid
(D) Gas in a gas
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-15) Which one of the following contains cobalt?
(A) Chlorophyll
(B) Haemoglobin
(C) Vitamin C
(D) Vitamin B12
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-14) Which of the following gases is used in cigarette lighters?
(A) Butane
(B) Methane
(C) Propane
(D) Radon
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-13) Heavy water is used as a coolant in nuclear reactors Heavy water is
(A) Water rich in minerals
(B) Ozonized water
(C) Water containing minerals of heavy metal
(D) Water containg heavy isotope of hydrogen
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-12) Statements : All good athletes win. All good athletes eat well.
Conclusions :
I. All those who eat well are good athletes.
II. All those who win eat well.
(A) Only conclusion I follows
(B) Only conclusion II follows
(C) Either I or II follows
(D) Neither I nor II follows
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-11) Statements : All hill stations have a sun-set point. X is a hill station.
Conclusions :
I. X has a sun-set point.
II. Places other than hill stations do not have sun-set points.
(A) Only conclusion I follows
(B) Only conclusion II follows
(C) Either I or II follows
(D) Neither I nor II follows
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-10) Statements :All jungles are tigers. Some tigers are horses.
Conclusions :
I. Some horses are jungles.
II. No horse is jungle.
(A) Only conclusion I follows
(B) Only conclusion II follows
(C) Either I or II follows
(D) Neither I nor II follows
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
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