Q:

When were bar code scanners invented?

A) 1940s	B) 1950s
C) 1960s	D) 1970s

Answer & Explanation Answer: D) 1970s

Explanation:

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Filed Under: Inventions

1 3792

Q:

Which of the following is true about blood plasma?

A) The main protein component is hemoglobin.	B) It is a faint yellow fluid.
C) It is the same as serum but without the clotting proteins.	D) It is about 90% water.

Answer & Explanation Answer: D) It is about 90% water.

Explanation:

The first option is incorrect because it is devoid of blood cell, also red blood cells so doesn’t contains haemoglobin.

The second option is incorrect because plasma is colorless.

The third option is also incorrect because plasma contains the clotting factors.

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Filed Under: Biology
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2 3792

Q:

The world's largest delta system is the _________

A) The Nile, Egypt	B) Ganges-Brahmaputra, India/ Bangladesh
C) The Mississippi, USA	D) The Amazon , Brazil

Answer & Explanation Answer: B) Ganges-Brahmaputra, India/ Bangladesh

Explanation:

The Ganges, Brahmaputra delta covers an area of about 75000 sq km.

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Filed Under: World Geography

3 3791

Q:

Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes?

A) Yes	B) No
C) May be Yes or No	D) None

Answer & Explanation Answer: B) No

Explanation:

No.Minimal spanning tree assures that the total weight of the tree is kept at its minimum. But it doesn’t mean that the distance between any two nodes involved in the minimum-spanning tree is minimum.

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Filed Under: Database
Job Role: Database Administration

1 3790

Q:

Who has been appointed as the Election Commissioner of India ?

A) S. Y. Quraishi	B) Sunil Arora
C) H. S. Brahma	D) Nasim Zaidi

Answer & Explanation Answer: B) Sunil Arora

Explanation:

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Filed Under: General Awareness
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6 3790

Q:

What frequency range is the high frequency band?

A) 3 kHz	B) 3 to 30 MHz
C) 30 to 300 MHz	D) 10 GHz

Answer & Explanation Answer: B) 3 to 30 MHz

Explanation:

The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.

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Filed Under: Physics
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4 3789

Q:

Which state government started the distribution of kits for new borns and mothers across the State ?

A) Uttar Pradesh	B) Haryana
C) Madhya Pradesh	D) Telangana

Answer & Explanation Answer: D) Telangana

Explanation:

The Telangana government started the distribution of kits for new borns and mothers across the State with Chief Minister K.Chandrashekar Rao gave them at the Government Maternity Hospital. Six women, who gave birth to children recently, received them.

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Filed Under: General Awareness

1 3788

Q:

Electron, Proton, Neutron discovered by

A) J. J. Thomson, Ernest Rutherford & James Chadwick	B) John Dalton, J.J. Thomson & Neils Bohr
C) Neils Bohr, John Dalton & J.J. Thomson	D) None of the above