GATE Questions

Q:

Electrostatic precipitator is used to control

A) Water pollution B) Noise pollution
C) Air pollution D) Solid waste
 
Answer & Explanation Answer: C) Air pollution

Explanation:

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

                         Electrostatic_precipitator_is_used_to_control1564054124.png image

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Filed Under: Physics
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Q:

rlrgsmaorsi - Rearrange this word

A) Mobile screen B) Mirror glass
C) Ceiling fans D) None of the above
 
Answer & Explanation Answer: B) Mirror glass

Explanation:
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Filed Under: Word Puzzles
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Q:

What scheme does the Kernel in Unix System V follow while choosing a swap device among the multiple swap devices?

Answer

Kernel follows Round Robin scheme choosing a swap device among the multiple swap devices in Unix System V.

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Subject: Operating Systems Exam Prep: GATE

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Q:

5/8 as a Decimal Equals To

A) 0.625 B) 0.541
C) 0.258 D) 0.147
 
Answer & Explanation Answer: A) 0.625

Explanation:

5/8 is Nothing but to divide 5 into 8 parts.

 

 

As 5 is smaller than 8, the quotient starts with a decimal point to make 5 as 50 to be divisible by 8. (0.)

 

 

Now 50 goes for 6 times in 8 leaving a remainder 2. (0.6)

 

  

Again 2 is smaller than 8, As it already has decimal point in the quotient, now 2 becomes 20.

 

  

Now 20 goes for 2 times in 8 leaving a remainder 4. (0.62)

 

  

Again 4 is smaller than 8, As it already has decimal point in the quotient, now 4 becomes 40.

 

 

Now 40 goes for 5 times in 8 leaving a remainder 0. (0.625)

 

 

Therefore, the decimal value of 58 is 0.625.

 

Now find a decimal value of 1117 and Discuss your at Discuss.

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Filed Under: Decimal Fractions
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Q:

Which of the following is an instance of informative speaking?

A) a student sharing ideas about leadership based on a book she has read B) a student on stage telling jokes during the intermission of a play
C) a student urging an instructor to reconsider the due date for an assignment D) All of the above
 
Answer & Explanation Answer: A) a student sharing ideas about leadership based on a book she has read

Explanation:

Informative Speaking is a 10-minute presentation written and performed by the student. Informative requires students to balance that content with delivery and style.

Here in the given options, option A) a student sharing ideas about leadership based on a book she has read, is an instance of informative speaking.

 

Students in Informative must be articulate, engaging, and smooth with their delivery at both a vocal and physical level.

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Q:

What is the science of mapmaking called?

A) Coriography B) Cartography
C) Photograrnmetry D) Mapping
 
Answer & Explanation Answer: B) Cartography

Explanation:

The art and science of map making is called Cartography.

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Q:

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in ?

A) 85 min B) 92 min
C) 187 min D) 144 min
 
Answer & Explanation Answer: D) 144 min

Explanation:

Let the slower pipe alone fill the tank in x min.

Then, faster pipe will fill it in x/3 min.

1/x + 3/x = 1/36 

4/x = 1/36 => x = 144 min.
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Filed Under: Pipes and Cistern
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Q:

Unlike conservation, what does preservation emphasize?

A) Saving natural resources B) Managing natural resoucres
C) Carrying capacity D) Renewing natural resources
 
Answer & Explanation Answer: A) Saving natural resources

Explanation:
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