Exams Questions and Answers

Q:

The mass defect is the result of what action occurring?

A) mass being converted to energy when protons and neutrons bind together in a nucleus	B) protons and electrons being attracted to each other
C) energy being converted into moles of atoms when neutrons break apart protons	D) mass being converted to energy when protons and neutrons break apart in a nucleus

Answer & Explanation Answer: A) mass being converted to energy when protons and neutrons bind together in a nucleus

Explanation:

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Filed Under: Physics
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0 2822

Q:

Oxidation number of $S_{8}$ ?

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

Answer & Explanation Answer: D) 0

Explanation:

$S_{8}$ is an elemental form of sufur. In elemental form it can't be reduced or oxidized. Hence, it oxidation number is zero and thus sulfur is zerovalent here.

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Filed Under: Chemistry
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0 2822

Q:

Which virus is not associated with cancer?

A) Epstein-Barr virus	B) Papillomavirus
C) Retrovirus	D) Hepatitis virus

Answer & Explanation Answer: C) Retrovirus

Explanation:

In the above given options, Retrovirus is the only virus which is not associated with cancer. Here the viruses which are associated with different types of cancer. They are:

Hepatitis virus which is associated with Liver cancer

Papillomavirus which is associated with Cervical cancer

Epstein-Barr virus which is associated with Burkitt's lymphoma.

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Filed Under: Biology
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1 2821

Q:

Accounts that normally have debit balances are

A) Assets,Expenses,and Common stock	B) Assets,Dividends,and Expenses
C) Assets,Expenses,and Revenues	D) All of the above

Answer & Explanation Answer: B) Assets,Dividends,and Expenses

Explanation:

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Filed Under: Accounts Payable
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3 2820

Q:

The LCM of the three numbers 45,30 and 35 is:

A) 630	B) 420
C) 180	D) 840

Answer & Explanation Answer: A) 630

Explanation:

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Filed Under: Analytical Reasoning
Exam Prep: Bank Exams

8 2820

Q:

Claude Bernard first recognized

A) plant stomata opening and closing to maintain homeostasis	B) chemical reactions of enzymes
C) separate fluids outside and inside the cell	D) feedback loops

Answer & Explanation Answer: A) plant stomata opening and closing to maintain homeostasis

Explanation:

Claud_Bernard1533194164.jpg image

Claude Bernard was a French physiologist, who first recognised plant stomata opening and closing to maintain homeostasis.

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Filed Under: Famous Personalities
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1 2819

Q:

Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes

A) 2R	B) R/2
C) 5R/4	D) 3R/4

Answer & Explanation Answer: C) 5R/4

Explanation:

So, resistance of Wire 2 is R/4 as radius is half of wire 1, so area would be 4 times of wire 1.

Now for resistance in series. R= R1 + R2.

Therefore, Final R= R + R/4 = 5R/4

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Filed Under: Physics
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Q:

A man has 3 sons, 2 daughters and a wife. They divided a sum of Rs 19000 among themselves such that each daughter got 1.5 times the amount received by each son and his wife received 600 less than each son. What is the total amount (in Rs) received by the 3 sons together?

A) 2800	B) 3600
C) 5600	D) 8400

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