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GATE Questions

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Q:

In HTML, ___________ tag is used to construct drop-down list boxes and scrolling list boxes.

A) <SELECT> B) <OPTION>
C) <TEXTAREA> D) <INPUT>
 
Answer & Explanation Answer: A) <SELECT>

Explanation:
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Filed Under: Programming
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Q:

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find two numbers.

A) 10 & 12 B) 10 & 18
C) 12 & -18 D) -12 & 18
 
Answer & Explanation Answer: D) -12 & 18

Explanation:

Given, difference of the squares of two numbers is 180.

= k2 - l2 - 180

 

Also, square of the smaller number is 8 times the larger.

= l2 = 8k

 

Thus, k2 - 8a - 180 = 0

k2 – 18k + 10k - 180 = 0

→  k(k - 18) + 10(k – 18) = 0

= (k + 10)(k – 18) = 0

→  k = -10, 18

 

Thus, the other number is

324 - 180 = l2 

 

→ Numbers are 12, 18 or -12, 18.

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Filed Under: Numbers
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Q:

The word length of a computer is measured in

A) centimeters B) millimeters
C) bytes D) bits
 
Answer & Explanation Answer: D) bits

Explanation:
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Filed Under: Computer
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Q:

Sound waves cannot travel through

A) Gas B) Liquid
C) Vacuum D) Solid
 
Answer & Explanation Answer: C) Vacuum

Explanation:

Sound waves cannot travel through a Vacuum.

 

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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Filed Under: Physics
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Q:

What has no beginning, end or middle?

Answer

A Donut or Doughnut. Anything in the shape of a torus.

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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Q:

DNA is a long chain made of repeating units called aminoacids.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

The repeating units that are used to form the helical DNA structure are called nucleotides.

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Subject: General Science
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Q:

The study of trees is called

A) Histology B) Andreology
C) Sistology D) Dendrology
 
Answer & Explanation Answer: D) Dendrology

Explanation:

The study of trees is called Dendrology.

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Filed Under: General Science
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Q:

Standing on a platform, Rajan told Kumar that Varanasi was more than 20 km but less than 25 km from there. Kumar knew that it was more than 18 km but less than 22 km from there. If both of them are correct, then which of the following is the true distance of Varanasi from the platform ?

A) 20 km B) 22 km
C) 19 km D) 21 km
 
Answer & Explanation Answer: D) 21 km

Explanation:

From both voices it can be conclude that,

Varanasi is more than 20km but less than 22km away. That is it is 21 kms away.

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Filed Under: Verification of Truth of the statement
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