GATE Questions

Q:

The ability to do work is called Energy.

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

Explanation:

Yes, the ability to do work is called Energy is True.

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Subject: Physics
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Q:

Which technology is used in compact disc or disks?

A) Laser B) Mechanical
C) Electrical D) Electro magnetic
 
Answer & Explanation Answer: A) Laser

Explanation:

                                    Which_technology_is_used_in_compact_disc_or_disks1538026052.jpg image

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. 

These are actually made to replace floppy disks that were used to store files and programs from the computer.

 

The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).ese CD's uses Laser technology.

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Q:

Number Challenge Puzzle ?

18620018_1306314879475613_5569162457360056464_n1499146603.jpg image

A) 1 B) 4
C) 5 D) 0
 
Answer & Explanation Answer: A) 1

Explanation:

In each row, 

Sum of 1st two digit number + last two digit number = Middle two digit number

i.e., 1st row 15 + 40 = 55

2nd row 46 + 47 = 93

Similarly, 7x + 16 = 87 => x = 1.

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Filed Under: Number Puzzles
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Q:

A person who is always dissatisfied

A) malcontent B) surrogate
C) heresy D) felon
 
Answer & Explanation Answer: A) malcontent

Explanation:

The one word substitute for "a person who is always dissatisfied" is malcontent.

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Filed Under: English
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1 5055
Q:

Three unbiased coins are tossed. What is the probability of getting at most two heads ?

A) 4/3 B) 2/3
C) 3/2 D) 3/4
 
Answer & Explanation Answer: D) 3/4

Explanation:

Let S be the sample space.
Here n(S)= 23 = 8
Let E be the event of getting atmost two heads. Then,
n(E) = {(H,T,T), (T,H,T), (T,T,H), (H,H,T), (T,H,H), (H,T,H)}
Required probability = n(E)/n(S) = 6/8 = 3/4.

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Filed Under: Probability
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6 5048
Q:

Second largest continent of the world?

A) Asia B) Australia
C) Africa D) Europe
 
Answer & Explanation Answer: C) Africa

Explanation:

Africa is the second largest continent both by popolation and area wise. Asia being first by both popolation and area wise.

 

second_largest_continent_of_the_world1555564422.png image

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Filed Under: General Awareness
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4 5047
Q:

Which of these is NOT a lipid?

A) Wax B) Cholesterol
C) RNA D) Phospholipid
 
Answer & Explanation Answer: C) RNA

Explanation:

RNA is not a lipid among the given options.

 

A lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.

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Filed Under: Biology
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Q:

It is 3 in the morning, you’re sleeping and you hear the doorbell. It’s your parents who show up for a surprise visit for breakfast. You’ve got the strawberry jam, honey, bread and cheese.
What do you open first?

A) open your door B) open your mouth
C) open the fridge D) open your eyes
 
Answer & Explanation Answer: D) open your eyes

Explanation:

As you were asleep, none of the things could have happened without doing "open your eyes" first.

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Filed Under: Logic Puzzles
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