Q:

Secondary storage ________

A) does not require constant power	B) does not use magnetic media
C) consists of four main types of devices	D) does not store information for later retrieval

Answer & Explanation Answer: A) does not require constant power

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

18 8119

Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)	B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq)	D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)

Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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8 8112

Q:

Which metal pollute the air of a big city?

A) Chromium	B) Lead
C) Copper	D) Zinc

Answer & Explanation Answer: B) Lead

Explanation:

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12 8111

Q:

The first gasoline-run car engine was developed by

A) Henry Ford	B) Carl Benz
C) Hugh Chalmers	D) Horace Elgin Dodge

Answer & Explanation Answer: B) Carl Benz

Explanation:

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Filed Under: Inventions
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0 8110

Q:

Prime Minister of India is de-facto head of which of the following bodies?

I. NITI Aayog

II. National Integration Council

III. Indian Board of Wildlife

A) Only I	B) Only II
C) Both II and III	D) All I, II and III

Answer & Explanation Answer: D) All I, II and III

Explanation:

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Filed Under: General Awareness
Exam Prep: Bank Exams

1 8110

Q:

Improve the bracketed part of the sentence.

"I am the only man in the world who (can) paint a picture so true to life," he said.

A) will	B) could
C) may	D) no improvement

Answer & Explanation Answer: D) no improvement

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 8108

Q:

Velocitation is the tendency to

A) be traveling at a speed that is faster than perceived	B) be traveling at a speed that is slower than perceived
C) Both A & B	D) None of the above

Answer & Explanation Answer: A) be traveling at a speed that is faster than perceived

Explanation:

Velocitation is a phenomenon caused by driving for long periods at high speeds. A driver may experience velocitation when coming off of the highway; the change in speed makes him or her think that the car is going much slower than it actually is.

Velocitation is the tendency to be traveling at a speed that is faster than perceived.

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Filed Under: Physics
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4 8101

Q:

The main element used in the vulcanisation of rubber is

A) nickel	B) copper
C) sulphur	D) graphite

Answer & Explanation Answer: C) sulphur

Explanation:

In vulcanization, cruder rubber is heated with 3% sulphur at about for $120^{0} C$ for 2-3 hours.

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