46.  Roentgen discovered

a

  Electrocardiograph

b

 Xâ'rays

c

 Anti polio vaccine

d

 Encephalograph

Answer & Explanation
Answer : Option B
Explanation :

47.  Which of the following is a secondary air pollutant?

a

  Acid rain

b

 CO2

c

 SO2

d

 Dust particles

Answer & Explanation
Answer : Option A
Explanation :

48.  Which major event in Indian history is also called as 'White Flowing River'?

a

  Quit India Movement

b

 Partition of India

c

 Dandi March

d

 Operation Bluestar

Answer & Explanation
Answer : Option C
Explanation :

49.  Which of the following is not a function of the Control Unit?

a

  Interpret instructions

b

 Read instructions

c

 Execute instructions

d

 Direct operations

Answer & Explanation
Answer : Option B
Explanation :

50.  Yellow color of urine is due to presence of

a

  Cholesterol

b

 Lymph

c

 Urochrome

d

 Bile juice

Answer & Explanation
Answer : Option C
Explanation :

51.  A prescribed set of well-defined instructions for solving mathematical problems is called ________

a

  A compiler

b

 An algorithm

c

 A code

d

 A description

Answer & Explanation
Answer : Option B
Explanation :

52.  Which one of the following strongly threatens biodiversity?

a

  Inaccessible habitates in the Himalayas

b

 Eragile ecosystems such as mangroves and wetlands

c

 Creation of biosphere reserves

d

 Desstruction of natural habitates and regetation and Jhum cultivation

Answer & Explanation
Answer : Option D
Explanation :

53.  A computer consists of

a

  central processing unit

b

 All of the above

c

 motherboard

d

 hard disk drive

Answer & Explanation
Answer : Option B
Explanation :

54.  DNA is made of repeating units called

a

  Peptides

b

 Aminoacids

c

 Ribozomes

d

 Nucleotides

Answer & Explanation
Answer : Option D
Explanation :

55.  Amrita Pritam's work A Revenue Stamp is

a

  A novel

b

 A biography

c

 A book of stories

d

 An autobiography

Answer & Explanation
Answer : Option D
Explanation :

56.  The State which has the highest percentage of literate unemployed in India is

a

  Kerala

b

 Manipur

c

 Andhra Pradesh

d

 Gujarat

Answer & Explanation
Answer : Option A
Explanation :

57.  An object with a constant speed

a

  also has a constant velocity

b

 might be accelerated

c

 is not accelerated

d

 is always accelerated

Answer & Explanation
Answer : Option B
Explanation :

58.  Cyclonic rainfall largely occurs in

a

  Egypy

b

 U.K

c

 India

d

 Mexico

Answer & Explanation
Answer : Option C
Explanation :

59.  KYC norms for e-wallets made mandatory from

a

  May 1

b

 March 1

c

 April 1

d

 March 31

Answer & Explanation
Answer : Option B
Explanation :

60.  Which of the following act was mentioned as a Charter of Slavery by Jawahar Lal Nehru ?

a

  Government of India Act

b

 

c

 Vernacular Press Act

d

 Regulation Act

Answer & Explanation
Answer : Option B
Explanation :



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