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Q:

Which one of the following is commonly used for pulp bleaching in the paper industry?

A) Mild sulphuric acid B) Glucose isomerase
C) peroxide D) Iodine and water
 
Answer & Explanation Answer: C) peroxide

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 1428
Q:

In humans, the sound is produced by the ________.

A) oesophagus B) larynx
C) medulla D) epiglottis
 
Answer & Explanation Answer: B) larynx

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Filed Under: Biology
Exam Prep: Bank Exams

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Q:

If sinθ x cosθ = 1⁄2 . The value of sinθ ­- cosθ is where 0°< θ< 90°

A) 0 B) √2
C) 2 D) 1
 
Answer & Explanation Answer: A) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Who among the following Indians has been honoured by a special Oscar?

A) Mahesh Bhatt B) Satyajit Ray
C) Mira Nair D) G.P.Sippy
 
Answer & Explanation Answer: B) Satyajit Ray

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Filed Under: Honours and Awards
Exam Prep: Bank Exams

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Q:

Which of the numbers given below is the square root of 15376?

A) 122 B) 124
C) 134 D) 128
 
Answer & Explanation Answer: B) 124

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Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

2 1428
Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The value of 2.31 x 0.34 = ?

A) 1.7854 B) 0.7854
C) 0.7845 D) 0.7584
 
Answer & Explanation Answer: B) 0.7854

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A shopkeeper cheats to the extent of 8% while buying and selling fruits, by using tampered weights, his total gain in percentage is

A) 16.25 B) 16.44
C) 16.75 D) 16.5
 
Answer & Explanation Answer: B) 16.44

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 1428