Questions

Q:

The HIV virus weakens the immunity of a person because it destroys

A) mast cells B) platelets
C) erythrocytes D) lymphocytes
 
Answer & Explanation Answer: D) lymphocytes

Explanation:

The    HIV    virus    continuously    invades    and destroys  T-cells  (lymphocytes).  Eventually  the body can't replace the T-cells fast enough, and the  immune  system  deteriorates.  When  the immune  system has deteriorated to the point that it is unable to fight off diseases, a person is diagnosed with AIDS.

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

What is the name of the device used to convert alternating current into direct current ?

A) Ammeter B) Galvanometer
C) Rectifier D) Transformer
 
Answer & Explanation Answer: C) Rectifier

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

A permanent magnet can affect

A) Magnets B) Electromagnets
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

A permanent magnet can affect both magnets and electromagnets.

a_permanent_magnet_can_affect1559196137.jpg image

A permanent magnet has natural magnetic properties while a temporal magnet is created by artificial means. Permanent magnets do not lose their magnetic ability.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

In a _________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation

A) longitudinal B) rolling
C) transverse D) field
 
Answer & Explanation Answer: C) transverse

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams , GATE
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Q:

What is impulse equal to?

A) Change in momentum B) Change in force
C) Change in velocity D) Change in acceleration
 
Answer & Explanation Answer: A) Change in momentum

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A child born after the death of father

A) Post dated B) Premature
C) Paternal D) Posthumous
 
Answer & Explanation Answer: D) Posthumous

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Which of the following mammals lay eggs?

A) Bat B) Whale
C) Weasel D) Platypus
 
Answer & Explanation Answer: D) Platypus

Explanation:
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Filed Under: Animals and Birds
Exam Prep: Bank Exams

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Q:

If x + (1/x) = 2, then what is the value of x64 + x121?

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

Explanation:
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