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Learn POLICE CONSTABLE MCQs with answers [Page 1 of Department 78]

B

Bijay Kumar • 5.24K Points
Tutor III

1) Find out the wrong number:
6, 13, 18, 25, 30, 37, 40

(A) 25
(B) 30
(C) 37
(D) 40
Correct Answer - Option (D)

Explanation :
The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5. So, 40 is wrong.

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B

Bijay Kumar • 5.24K Points
Tutor III

2) The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above condition is

(A) 4
(B) 6
(C) 8
(D) 12
Correct Answer - Option (A)

Explanation :
Let the required numbers be 33a and 33b. Then 33a +33b= 528 => a+b = 16. Now, co-primes with sum 16 are (1,15) , (3,13) , (5,11) and (7,9). Therefore, Required numbers are ( 33 x 1, 33 x 15), (33 x 3, 33 x 13), (33 x 5, 33 x 11), (33 x 7, 33 x 9) The number of such pairs is 4

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R

Ram Sharma • 178.09K Points
Coach

3) When a single gene controls the expression of more than one character, it is said to be

(A) Autotrophic
(B) Pleiotropic
(C) Allotropic
(D) Heterotrophic
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 178.09K Points
Coach

4) The two strands of the DNA double helix are held together by

(A) C=C double bonds
(B) Hydrogen bonds
(C) Peptide bonds
(D) Hydrophobic bonds
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 178.09K Points
Coach

5) Which among the given gas leaked in the Bhopal Gas tragedy in December 1984

(A) Methyl isocyanate
(B) Methyl phosphate
(C) Methyl isopropate
(D) Methyl isochlorate
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 178.09K Points
Coach

8) What is viewed through an electron microscope -

(A) Structure of bacteria & viruses
(B) Electrons & other elementary particles
(C) Inside of the human eye
(D) Inside of human stomach
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 178.09K Points
Coach

9) What are the blood corpuscles that help to build up resistance against diseases

(A) Neutrophils
(B) Leucocytes
(C) Lymphoctyes
(D) Monocytes
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 178.09K Points
Coach

10) In frog, breeding occurs

(A) when it rains moderately
(B) during spring
(C) when photoperiod is appropriate
(D) when it rains heavily
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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