Exams Questions and Answers

Q:

If ${Sin}^{4} A - {Cos}^{4} A = 1$ then (A/2) in degrees is $(0 ° < A \leq 90 °)$

A) 60	B) 45
C) 40	D) 30

Answer & Explanation Answer: B) 45

Explanation:

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Filed Under: Simplification
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Q:

In the following figure, rectangle represents Editors, circle represents choreographers, triangle represents Jugglers and square represents Football players. Which set of letters represents Editors who are neither Jugglers nor football players?

A) DF	B) FJI
C) DB	D) AB

Answer & Explanation Answer: D) AB

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Filed Under: Image Analysis
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Q:

What is the value of $\sqrt[3]{729} \times \sqrt{16} + \sqrt{676} + \sqrt{169}$

A) 75	B) 64
C) 35	D) 60

Answer & Explanation Answer: A) 75

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Q:

If a mirror is placed on the line MN, then which answer figures is the right image of the given figure?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

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Q:

Which of the following is also known as the Biochemical Laboratory of the Human Body?

A) Small Intestine	B) Brain
C) Pancreas	D) Liver

Answer & Explanation Answer: D) Liver

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Filed Under: Biology
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Q:

Determine the value of 'x' in $x = \frac{1}{1 + \sqrt{2}} + \frac{1}{\sqrt{2} + \sqrt{3}} + \frac{1}{\sqrt{3} + 2}$

A) -1	B) 0
C) 1	D) 2

Answer & Explanation Answer: C) 1

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Q:

Which of the following is biodegradable?

A) Cattle dung	B) Aluminium cans
C) Plastics	D) D.D.T

Answer & Explanation Answer: A) Cattle dung

Explanation:

Any substance that does not cause pollution and is capable of getting decomposed by any living organism is called as Bio degradable. Human & animal excreta, plant wastes etc... come under bio-degradable.

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Filed Under: General Science
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Q:

Researchers from Columbia University Medical Centre in United States of America have converted which of the following into the world’s smallest data recorder?

A) Natural bacterial immune system	B) Magnetic tape
C) Viral snippet copies	D) No option is correct.

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