Q:

Which part of a computer performs calculations?

A) Control unit	B) Arithmetic and logical unit
C) Both A & B	D) Logic bus

Answer & Explanation Answer: B) Arithmetic and logical unit

Explanation:

A computer has a CPU which is called as Central Processing UNit or a Processor builton the mother board. It has many components like control unit and Arithmetic and logical unit.

The Arithmetic and logical unit of the CPU performs the arithmetic operations or mathematical calculations.

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Q:

Which statement about interstate compacts is true?

A) States cannot form compacts with foreign states.	B) They may involve no more than two states.
C) Congress generally must approve interstate compacts.	D) Most are between the national government and foreign states.

Answer & Explanation Answer: C) Congress generally must approve interstate compacts.

Explanation:

Agreements made between two or more states are known as Interstate compacts. These may involve several states.

* Congress generally must approve interstate compacts.

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Q:

The memory unit is one part of

A) Input Device	B) Central Processing Unit
C) Control Unit	D) Output device

Answer & Explanation Answer: B) Central Processing Unit

Explanation:

In a computer, memory is one part of Central processing unit i.e, CPU.

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Q:

The blue colour of the clear sky is due to

A) Diffraction of light	B) Dispersion of light
C) Reflection of light	D) Refraction of light

Answer & Explanation Answer: B) Dispersion of light

Explanation:

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Q:

Missing letters puzzle

Answer

Answer: K

Explanation: In each row, the product of the left and right hand numbers equals the sum of the numerical values of the three letters.

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Subject: Missing letters puzzles

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Q:

I am the first on Earth, the second in Heaven. I appear two times in a week you can only see me once in a year. Although I am in the middle of the sea, l am not found in month, but l am in February, June, September, October, November & December.

Who am I?

Answer

The letter 'E'.

As of the above given data,

It is in the 1st place in Earth, 2nd in Heaven and in the middle of the Sea.

It appears once in a Year and twice in a Week.

It is present in February, June, September, October, November & December.

But not in the Month.

Hence, it is the letter 'E'.

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Q:

A CD-ROM disk _______

A) cannot be erased and rewritten	B) has more storage capacity than a CD-R
C) holds less data than a floppy disk	D) Can be written only once

Answer & Explanation Answer: A) cannot be erased and rewritten

Explanation:

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Q:

Which day was declared as the 'Direct Action Day' by the Muslim League ?

A) 3rd September 1946	B) 16th August 1946
C) 16th may 1946	D) 4th December 1946

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