GATE Questions

Q:

2/3 as a decimal

A) 0.47 B) 6.77
C) 0.67 D) 0.07
 
Answer & Explanation Answer: C) 0.67

Explanation:

To convert a fraction into decimal, just take the number on top which we called the numerator and divide it by the number at the bottom which we called the denominator.

2/3

How it comes :

÷ 0 bring down the decimal point.

20 ÷ 6 and carry the remainder 2 to make 20

20 ÷ 6 and carry the remainder 2 to make 20

20 ÷ 6 and carry the remainder 2 to make 20

etc...

This gives the recurring decimal 0.6666...

If we round off to two decimals , then it becomes 0.67.

 

Hence, decimal fraction of 2/3 = 0.67.

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Q:

In which layer is the pressure the highest?

A) Ionosphere B) Stratosphere
C) Troposphere D) Inner core
 
Answer & Explanation Answer: D) Inner core

Explanation:

"Pressure" is the ratio of mass to area. So, for any given area, the one with more mass pressing on it will experience a higher pressure.

 

As you go more deeply into the atmosphere OR earth itself, you are putting more and more mass over you. For the same unit area therefore, the pressure, (mass/area) increases.

 

Hence, the lowest layer will always have the highest pressure i.e, inner core.

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Q:

What happens during the process of translation?

A) Transfer RNA is made from messenger RNA B) Copies of DNA molecules are made
C) The cell uses information from messenger RNA to produce proteins D) Messenger RNA is made from DNA
 
Answer & Explanation Answer: C) The cell uses information from messenger RNA to produce proteins

Explanation:

Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.

 

In short, during the process of translation source language text is conveyed to destination language.

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Q:

When is a door not a door?

Answer

A door is not a door when it is a jar.


 


When_is_a_door_not_a_door1585541856.jpg image

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Q:

Which of the following is Not a Greenhouse Gas?

A) Oxygen B) Methane
C) Nitrous Oxide D) Carbondioxide
 
Answer & Explanation Answer: A) Oxygen

Explanation:

A greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. 

 

Carbon dioxide is a main greenhouse gas, found in car exhaust pipes.
Methane and nitrous oxide is another type of greenhouse gas.



Oxygen is the only clean gas out there because we need it to survive. Therefore, the only gas that is not a greenhouse gas is Oxygen.

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Q:

Manogna's father was 38 years of age when she was born while her mother was 36 years old when her brother, 4 years younger than her, was born. What is the difference between the ages of her parents?

A) 2 years B) 4 years
C) 6 years D) 8 years
 
Answer & Explanation Answer: C) 6 years

Explanation:

From the given data,

Manogna’s age be 0 when she was born.

Her father’s age = 38 years

Her mother’s age when Manogna’s brother who is 4 years younger to her was born = 36 years

=> Manogna’s mother age when Manogna was born = 36 - 4 = 32 years

 

Hence, the difference between the ages of Manogna’s parents = 38 - 32 = 6 years.

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Q:

In the question below consists of a question and two statements numbered a and b given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give the answer.

Question: How is Vinitha related to Ragini ?
Statements:
a. Vinitha's husband is the only son of Ragini's mother.
b. Vinitha's brother and Ragini's husband are cousins.

A) Neither a nor b is sufficient B) Either a or b is sufficient
C) Both a & b are sufficient D) a alone is sufficient while b alone is not sufficient
 
Answer & Explanation Answer: B) Either a or b is sufficient

Explanation:

From a, we conclude that Vinitha is the wife of Ragini's mother's only son i.e. Ragini's brother. Thus, Vinitha is Ragini's sister-in-law.

From b, we conclude that Vinitha is the cousin of Ragini's husband, which implies that Vinitha is Ragini's sister-in-law.

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Q:

The Length of the Day is determined in

A) length of the hours B) length of the year
C) astronomical units D) solar terms
 
Answer & Explanation Answer: C) astronomical units

Explanation:

The Length of the Day is determined in Astronomical Units.

The length of a day corresponds to the time the Earth takes to turn around on its axis, which is approximately 24 hours. But it's not exactly 24 hours. 

This phenomenon is due to tides raised by the Moon which slow Earth's rotation. Because of the way the second is defined, the mean length of a day is now about 86 400.002 seconds, and is increasing by about 1.7 milliseconds per century.

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