Questions

Q:

Iron and manganese present as pollutants in water cannot be removed by_____

A) oxidation followed by settling and filtration B) chlorination
C) ion exchange process D) lime soda process or manganese zeolite process
 
Answer & Explanation Answer: B) chlorination

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Who invented "Coca Cola"?

A) Floyd Paxton B) Les Paul
C) John Pemberton D) Forrest Parry
 
Answer & Explanation Answer: C) John Pemberton

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Filed Under: Inventions
Exam Prep: Bank Exams

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Q:

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

A) 3 cm B) 1.5 cm
C) 1 cm D) 2.5 cm
 
Answer & Explanation Answer: C) 1 cm

Explanation:

Let, inner radius of cylinder be ‘x’ cm.
4/3 π(6)3 = π × 32 (52 − x2)

or, (4 × 6 × 6 × 6) / (3 × 32) = 25 − x2 or, x2 = 25 − 9
or, x = 4 cm
Hence, thickness = 5 – 4 = 1 cm.

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Q:

In an examination, 52% candidates failed in English and 42% failed in Mathematics. If 17% failed in both the subjects, then what percent passed in both the subjects?

 

A) 77 B) 58
C) 48 D) 23
 
Answer & Explanation Answer: D) 23

Explanation:

No of students failed in English only = 52 –17 = 35

No of students failed in maths only = 42 –17 = 25

Total no of failed students in either of the subjects = 35+17+25 = 77

No of passed student in both subjects = 100 –77 = 23

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Q:

Which of the following is NOT correctly matched?

A) Shivasamudram Falls - Kaveri B) Dhuandhar Falls - Narmada
C) Sahastra dhara Falls - Baldy D) Gerosoppa Falls - Kaveri
 
Answer & Explanation Answer: D) Gerosoppa Falls - Kaveri

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Filed Under: World Geography
Exam Prep: Bank Exams

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Q:

A] The author of the novel 'Bird Box' is Victor LaValle.
B] The author of the novel 'The Devil in Silver' is Josh Malerman.
C] The author of the novel 'Fellside' is Victor LaValle.

Which of the statements given above are not correct?

A) A and B B) B and C
C) A and C D) A, B and C
 
Answer & Explanation Answer: D) A, B and C

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Filed Under: Books and Authors
Exam Prep: Bank Exams

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Q:

If x+1x = 2, then x2+1x2 = ?

A) 0 B) 2
C) 4 D) 8
 
Answer & Explanation Answer: B) 2

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Q:

Who among the following is NOT a Miss World?

A) Manushi Chhillar B) Yukta Mookhey
C) Sushmita Sen D) Diana Hayden
 
Answer & Explanation Answer: C) Sushmita Sen

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Filed Under: Famous Personalities
Exam Prep: Bank Exams

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