GATE Questions

Q:

What occurs when an atom loses an electron?

A) The atom's radius decreases and the atom becomes a positive ion. B) The atom's radius increases and the atom becomes a negative ion.
C) The atom's radius decreases and the atom becomes a negative ion. D) The atom's radius increases and the atom becomes a positive ion.
 
Answer & Explanation Answer: A) The atom's radius decreases and the atom becomes a positive ion.

Explanation:

When an atom loses an electron it becomes a positive ion by acquiring negatively charged. When it loses electron, the atom's radius also decreased.

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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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Q:

One billionth of a second is called

A) microsecond B) picoseconds
C) millisecond D) nanosecond
 
Answer & Explanation Answer: D) nanosecond

Explanation:

A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.

 

  • That is, 1/1,000,000,000 of a second, or 10^−9 seconds.
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Q:

Where do the greenhouse gases come from?

A) Agriculture B) Land-use change
C) Fosssil fuels D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Most of the emissions of greenhouse gases (GHG) come primarily from burning fossil fuels (coal, hydrocarbon gas liquids, natural gas, and petroleum) for energy use and the major greenhouse gas is of course carbon dioxide (CO2) which comes from burning fossil fuels and land-use change.

But methane (CH4) and nitrous oxide (N2O), which mostly come from agriculture and waste, are also significant GHGs and shouldn't be discounted.

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Q:

Which is the largest coal producing country in the World?

A) India B) China
C) Russia D) New-zealand
 
Answer & Explanation Answer: B) China

Explanation:

China has been by far the biggest coal producing country over the last three decades. The country produced about 3.6 billion tonnes (Bt) of coal in 2012 accounting for over 47% of the world's total coal output.

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Q:

If 15 men 4 hours per day works for 14 days get Rs.35/- then how many men required if the work is 8 hours per day for 10 days they get 50/- ?

A) 12 B) 13
C) 14 D) 15
 
Answer & Explanation Answer: D) 15

Explanation:

We know M1×D1×H1W1 = M2×D2×H2W2 

 


=> 15×4×1435 = M×8×1050

 

=> M = 15

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Q:

A test to determine processor speed is?

A) a gesture B) flat panel
C) a benchmark D) None of the above
 
Answer & Explanation Answer: C) a benchmark

Explanation:

The total number of instructions a computer executes per second is called as its processors speed. 

 

Maximum the processor's speed minimum the time for execution.

 

A test to determine processor speed is a benchmark.

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Q:

Which of the following is a correctly written compound word?

A) Spur of the moment-decision B) Thirty one
C) Quickly-running D) Self-evident
 
Answer & Explanation Answer: D) Self-evident

Explanation:

Compound word means when two or more words join together to make a single word that gives a new meaning.

 

Here in the options, Self-evident is the compound word.

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