GATE Questions

Q:

In an objective competitive exam, a correct answer score 4 marks and on a wrong answer 2 marks are negatively added. A student scores 420 marks from 150 question. How many answers were correct ?

A) 145 B) 138
C) 125 D) 120
 
Answer & Explanation Answer: D) 120

Explanation:

let x be the correct answer and y be the wrong answer
so the total number of questions is (x + y) = 150.....(1)
=> 4x - 2y = 420.....(2)
By solving (1) & (2), we get
=> 6x = 720
hence x = 120
Therefore, number of correct answers are 120.

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Filed Under: Logic
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Q:

When should you discard a PFD?

A) When it is too small B) When its been used 1 year
C) When its been used 1 month D) When it has a torn strap
 
Answer & Explanation Answer: D) When it has a torn strap

Explanation:

Personal flotation devices (PFDs), have life span upto it is damaged. Hence, When it has a torn strap you should discard a PFD.

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Filed Under: General Awareness
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Q:

Which of these is a starting point for primary succession?

A) a neglected yard B) a surface exposed by a retreating glacier
C) an abandoned city D) abandoned farmland
 
Answer & Explanation Answer: B) a surface exposed by a retreating glacier

Explanation:
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Filed Under: General Science
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Q:

One major cause of floods is

A) light rain over a large area B) a decrease in stream discharge
C) rapid spring snowmelt D) increased capacity of stream channels
 
Answer & Explanation Answer: C) rapid spring snowmelt

Explanation:

There are lots of reasons behind the flood in any area but the main reason is a heavy downpour or rapid snowmelt can flood canyons with a mixture of soil, rock, and water is a major cause of floods.

 

When the spring times come, sometimes there's a lot of warmth that suddenly comes, especially nowadays when there are things such as global warming. So the snow melts and large amounts of water can flood the fields that are often found at the foot of a mountain or similar things.

 

But they may also be caused by deforestation, drainage channel modification from a landslide, earthquake or volcanic eruption. Examples include outburst floods and lahars.

 

 

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Filed Under: General Awareness
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Q:

ACTH stimulates the adrenal cortex to release corticosteroid hormones.

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

Explanation:

ACTH means Adrenal Corticotrophic Hormone.


CRH - Corticotrophin Releasing Hormone produced by hypothalamus stimulates the pituitary gland to release the ACTH which in turn produces corticosteroid hormones by adrenal glands.


 


Hence, the given statement is TRUE.

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Subject: Biology
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1 2533
Q:

A sentence whose meaning is unclear

A) Anonymous B) Ambiguous
C) Unanimous D) Congruent
 
Answer & Explanation Answer: B) Ambiguous

Explanation:

A sentence whose meaning is unclear is called as Ambiguous.

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Filed Under: English
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1 2528
Q:

What is a shell?

Answer

A shell is an interactive user interface to an operating system services that allows an user to enter commands as character strings or through a graphical user interface. The shell converts them to system calls to the OS or forks off a process to execute the command. System call results and other information from the OS are presented to the user through an interactive interface. Commonly used shells are sh,csh,ks etc.

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Subject: Operating Systems Exam Prep: GATE

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Q:

The temperature at which water boils depends mainly on

A) Air Pressure B) Specific heat
C) Density D) Relative humidity
 
Answer & Explanation Answer: A) Air Pressure

Explanation:

The temperature at which water boils depends mainly on air pressure.

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Filed Under: Physics
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