Common Admission Test (CAT) Questions and Answers with Explanation

Q:

The process of preparing a floppy diskette for use is called ________

A) assembling	B) translating
C) parsing	D) formatting

Answer & Explanation Answer: D) formatting

Explanation:

Floppy diskette is a storage space as like disc for any important files for future use.

The_process_of_preparing_a_floppy_diskette_for_use_is_called1535524055.jpg image

The process of preparing a floppy diskette for use is called Formatting.

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Q:

Which of the following is NOT a Software?

A) Compiler	B) Adobe
C) Microsoft Office	D) Drivers

Answer & Explanation Answer: A) Compiler

Explanation:

A compiler is not a software.

Adobe, Microsoft office and Drivers are all software on a computer.

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Q:

Website address is a unique name that identifies a specific ___ on the web.

A) Link	B) Web browser
C) PDA	D) Web site

Answer & Explanation Answer: D) Web site

Explanation:

Website address is a unique name that identifies a specific web site on the web.

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Q:

Which of the following virus overtake computer system, when it boots and destroy information ?

A) System infectors	B) Trojan
C) Stealth virus	D) Boot infectors

Answer & Explanation Answer: C) Stealth virus

Explanation:

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Q:

Amit can do a piece of work in 45 days, but Bharath can do the same work in 5 days less, than Amit, when working alone. Amit and Bharath both started the work together but Bharath left after some days and Amit finished the remaining work in 56 days with half of his efficiency but he did the work with Bharath with his complete efficiency. For how many days they had worked together?

A) 6	B) 8
C) 9	D) 12

Answer & Explanation Answer: B) 8

Explanation:

$\begin{matrix} A m i t & B h a r a t \\ N o . o f D a y s & 45 & 40 \\ E f f i c i e n c y & 2.22 P e r c e n t (= \frac{1}{45}) & 2.5 P e r c e n t (= \frac{1}{40}) \end{matrix}$

Amit did the work in 56 days = $56 \times \frac{1}{45 \times 2} = \frac{28}{45}$

Therefore, Rest work 17/45 was done by Amit and Bharath = $\frac{\frac{17}{45}}{\frac{17}{360}}$ = 8 days

( since Amit and Bharath do the work in one day = $\frac{1}{45} + \frac{1}{40} = \frac{17}{360}$ )

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Q:

Five men and nine women can do a piece of work in 10 days. Six men and twelve women can do the same work in 8 days. In how many days can three men and three women do the work ?

A) 18 days	B) 20 days
C) 16 days	D) 14 days

Answer & Explanation Answer: B) 20 days

Explanation:

(5m + 9w)10 = (6m + 12w)8

=> 50m + 90w = 48w + 96 w => 1m = 3w

5m + 9w = 5m + 3m = 8m

8 men can do the work in 10 days.

3m +3w = 3m + 1w = 4m

So, 4 men can do the work in (10 x 8)/4 = 20 days.

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Q:

If the sides of a triangle are 26 cm, 24 cm and 10 cm, what is its area ?

A) 108 sq.cm	B) 112 sq.cm
C) 116 sq.cm	D) 120 sq.cm

Answer & Explanation Answer: D) 120 sq.cm

Explanation:

The triangle with sides 26 cm, 24 cm and 10 cm is right angled, where the hypotenuse is 26 cm.

Area of the triangle =1/2 x base x height => 1/2 x 24 x 10 = 120 sq.cm

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Q:

You cannot close MS Word application by

A) From File menu choose Close submenu	B) Click X button on title bar
C) Choosing File menu then Exit submenu	D) Press Alt + F4

Answer & Explanation Answer: A) From File menu choose Close submenu

Explanation:

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