GRE Questions

Q:

A Step-Up Transformer Increases

A) Power B) Current
C) Frequency D) Voltage
 
Answer & Explanation Answer: D) Voltage

Explanation:

A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer.

Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer. 

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Filed Under: Physics
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5 2334
Q:

I make things short but I am pretty long myself.

WHAT AM I?

Answer

I am ABBREVIATION.


Yes, i make things short and asks the full form of that thing.


 


Ex : FCI - Food Corporation of India


IAS - Indian Administrative Service.

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4 2331
Q:

In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ?

A) 25 m B) 21 m
C) 22 m D) 19 m
 
Answer & Explanation Answer: A) 25 m

Explanation:

A:B = 200 : 169
A:C = 200 : 182
 CB = CA×AB 

 

182200×200169

 

=> 182:169

 

When C covers 182 m , B Covers 169 m
When C covers 350 m , B Covers 169182×350
=> 325 m

 

 

 

So C beats B by (350 - 325) = 25 m.

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Filed Under: Time and Distance
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6 2330
Q:

Which of the following is generally true about the stratosphere?

A) It is very dry B) It is very moist
C) The dryness level varies with the season D) The dryness level varies with the moon cycle
 
Answer & Explanation Answer: A) It is very dry

Explanation:

The stratosphere layer of the atmosphere is very dry.

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Filed Under: General Science
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2 2322
Q:

Cache memory is a form of ROM.

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

Explanation:

The given sentence Cache memory is a form of ROM is FALSE. Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access more quickly than it can access regular random access memory (RAM).

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1 2314
Q:

Which one of the following launched world's longest scheduled flight ?

A) Qatar Airways B) British Airways
C) Jet Blue D) Air India
 
Answer & Explanation Answer: A) Qatar Airways

Explanation:

The Qatar Airways has launched the World’s longest scheduled commercial service to ply between Doha to Auckland. The inaugural service of Flight QR920 took off on February 5, 2017 from Doha and will take 16 hours and 20 minutes to travel 14,535 kilometers to reach Auckland in New Zealand.
This makes Qatar Airways to launch the World’s fastest and longest passenger service in terms of flying time. Prior to this, emirates launched the world’s longest non-stop scheduled commercial flight with a service from Dubai to Auckland, spanning 14,200 kilometres.

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Filed Under: General Awareness
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5 2314
Q:

A doctor and a bus driver are both in love with the same woman, named Sana. The bus driver had to go on a long bus trip that would last a week. Before he left, he gave Sana seven apples.

 Why?

Answer

We know a proverb that An apple a day keeps the doctor away. To keep the doctor away from her, he gave seven apples, each apple a day.

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4 2304
Q:

What kind of pet always stays on the floor?

A) Cat B) Dog
C) Carpet D) All of the above
 
Answer & Explanation Answer: C) Carpet

Explanation:

A Carpet is the pet which always stays on the floor.

Carpet_on_floor1531810151.jpg image

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Filed Under: Word Puzzles
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