GATE Questions

Q:

What is 12 S of the Z?

Answer

12 S of Z represents 12 Signs of the Zodiac. 


It is similar to the  


1. 52 W in a Y        -  52 weeks in a year  


2. 3 H in a C          3 Hands in a Clock  


3. 3600 S in an H   -  3600 Seconds in an Hour 


4. 5 O in the W      -   5 Oceans in the World

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113 32160
Q:

Which is a green planet in the solar system?

A) Pluto B) Venus
C) Uranus D) Mars
 
Answer & Explanation Answer: C) Uranus

Explanation:

Uranus is the seventh planet from the Sun which looks green color. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn.

 

Which_is_a_green_planet_in_the_solar_system1558075325.jpg image 

 

Colors of other planets::

 

Mercury - Gray or slightly brownish

 

Venus - Pale yellow

 

Earth - Blue with white clouds

 

Mars - Mostly reddish brown

 

Jupiter - Orange and white bands

 

Saturn - Pale gold

 

Uranus - Green

 

Neptune - Pale blue

 

Pluto - Light brown

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Filed Under: General Awareness
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87 32032
Q:

which of the following are chemical changes?

A) Cooking of Food

B) Digestion of Food

C) Freezing of water

D) Water is heated up

A) A & B B) A, B & C
C) C & D D) All the above
 
Answer & Explanation Answer: A) A & B

Explanation:

A) Cooking of Food  ------ Chemical Change

B) Digestion of Food ----- Chemical Change

C) Freezing of water ----- Physical Change

D) Water is heated up ---- Physical Change

because here the chemical composition of the substance changes in A & B only.

 

Since we know that, If the chemical composition is changing then it is a chemical change and if the chemical composition is remaining the same, then it is a physical change.

 

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12 31850
Q:

A vessel contains 20 liters of a mixture of milk and water in the ratio 3:2. 10 liters of the mixture are removed and replaced with an equal quantity of pure milk. If the process is repeated once more, find the ratio of milk and water in the final mixture obtained ?

A) 5:3 B) 1:4
C) 4:1 D) 9:1
 
Answer & Explanation Answer: D) 9:1

Explanation:

Milk = 3/5 x 20 = 12 liters, water = 8 liters

 

If 10 liters of mixture are removed, amount of milk removed = 6 liters and amount of water removed = 4 liters.

 

Remaining milk = 12 - 6 = 6 liters

Remaining water = 8 - 4 = 4 liters

 

10 liters of pure milk are added, therefore total milk = (6 + 10) = 16 liters.

 

The ratio of milk and water in the new mixture = 16:4 = 4:1

 

If the process is repeated one more time and 10 liters of the mixture are removed,
then amount of milk removed = 4/5 x 10 = 8 liters.

 

Amount of water removed = 2 liters.

 

Remaining milk = (16 - 8) = 8 liters.

Remaining water = (4 -2) = 2 liters.

 

Now 10 lts milk is added => total milk = 18 lts

 

The required ratio of milk and water in the final mixture obtained

 

= (8 + 10):2 = 18:2 = 9:1.

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Filed Under: Alligation or Mixture
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53 31750
Q:

Where is RAM located?

A) Mother Board B) Expansion Board
C) External Drive D) None
 
Answer & Explanation Answer: A) Mother Board

Explanation:

RAM is located in The central processing unit (CPU), also called a processor, is located inside the computer case on the motherboard. It is sometimes called the brain of the computer, and its job is to carry out commands.

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129 31535
Q:

A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ?

A) 20 km B) 16 km
C) 14 km D) 10 km
 
Answer & Explanation Answer: D) 10 km

Explanation:

Let distance = x km.
Time taken at 3 kmph : dist/speed = x/3 = 20 min late.
time taken at 4 kmph : x/4 = 30 min earlier
difference between time taken : 30-(-20) = 50 mins = 50/60 hours.
x/3- x/4 = 50/60
x/12 = 5/6
x = 10 km.

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42 31215
Q:

Key, Door, Lock, Room, Switch on

Arrange the words given above in a meaningful sequence.

A) 4, 2, 1, 5, 3 B) 1, 3, 2, 4, 5
C) 5, 1, 2, 4, 3 D) 1, 2, 3, 5, 4
 
Answer & Explanation Answer: B) 1, 3, 2, 4, 5

Explanation:

The given words to be placed in a logical sequence. Here if you want to swith on a light or fan in a room, the sequence you follow must be like

Key,

Lock ,

Door,

Room, Swith on.

Key,_Door,_Lock,_Room,_Switch_on1553580788.jpg image

Take the key and open the lock of a door in a room and then swith on.

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72 30911
Q:

A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings ?

A) 34 B) 36
C) 35 D) 37
 
Answer & Explanation Answer: D) 37

Explanation:

16x + 85 = 17(x + 3)

x = 34 + 3 = 37

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40 30806