GATE Questions

Q:

Instrument used to measure oxygen?

A) Aminometer B) Respirometer
C) Thaleometer D) Galiometer
 
Answer & Explanation Answer: B) Respirometer

Explanation:

A respirometer is a device used to measure the rate of respiration of a living organism by measuring its rate of exchange of oxygen and/or carbon dioxide.

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Q:

Intermolecular forces in HCl are

A) Hydrogen bonding B) Dipole-dipole
C) Dispersion force D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Intermolecular forces :

The forces of attraction present in between the molecules or atoms or compounds is termed as intermolecular forces.


The molecule HCl is composed of hydrogen and chlorine atom. There is high difference in electronegativities therefore, it is polar in nature. The H end of HCl is permanently slightly positive charge. The Cl end of HCl has a permanent slight negative charge. the "H" in one molecule is attracted to the "Cl" in a neighbor. The intermolecular force is weak compared to a covalent bond. But this dipole-dipole interaction is one of the stronger intermolecular attractions.

It also has hydrogen bonding and dispersion forces. 

Dispersion forces are the weakest forces which are present in between all molecules or atoms.
Hydrogen bonds are present in molecules having at least one H-A bond where A is the strong electronegative atom (mainly F, Cl and N).

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Q:

3/8 as a decimal

A) 1.375 B) 2.375
C) 0.375 D) 3.75
 
Answer & Explanation Answer: C) 0.375

Explanation:

Expressing 3/8 as a decimal fraction:

We can convert 3/8 into a decimal fraction by just dividing 3 by 8 or making 3 into 8 parts.

Then, it is 3/8 = 0.375 as a decimal fraction.

 

Other Method::

3/8 as a Decimal :

In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple.

Now to make 8 into 1000, we multiply numerator and denominator with 125

 

=> (3 x 125)/(8 x 125) = 375/1000 = 0.375.

 

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Q:

Which results from an increase in the greenhouse effect?

A) Ocean acidification B) Smog pollution
C) Ozone depletion D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

A greenhouse gas (GHG) is any gas in the atmosphere that absorbs and emits radiation in the thermal infrared range.

 

The increase in average global temperatures that results from an enhanced greenhouse effect.

Effects of increased greenhouse gas emissions:

Increases in the different greenhouse gases have other effects apart from global warming including ocean acidification, smog pollution, ozone depletion as well as changes to plant growth and nutrition levels.

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2 2186
Q:

Commissioned - Antonym

A) Instruct B) Empower
C) Nominate D) Dismiss
 
Answer & Explanation Answer: D) Dismiss

Explanation:

Commissioned means Authority granted for a particular action or function.

 

Here, in the given options Dismiss is the only word which is opposite in meaning to commissioned.

 

Hence, Antonym of  Commissioned is Dismiss.

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Filed Under: Alphabet Test
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3 2847
Q:

'Rhythm of eyes' city name in India?

A) Chennai B) Nainital
C) Srinagar D) Karnataka
 
Answer & Explanation Answer: B) Nainital

Explanation:

'Rhythm of eyes' logically means Nainital in India.

 

The other cities are:

No Zip - Chennai

Mr. City - Srinagar

Do Acting - Karnataka.

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291 56927
Q:

What is the saddest fruit?

A) Blackberries B) Strawberries
C) Blueberries D) Pineapples
 
Answer & Explanation Answer: C) Blueberries

Explanation:

Blueberries are the saddest fruits.

 

Reason ::

In English some colors are associated with feelings. Blue is associated with sadness. When you "feel blue" it means that you are feeling sad.

 

Hence, as blueberries has blue in its name it indicates that that is the saddest fruit in logic.

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13 9105
Q:

What one word has the most letters in it?

Answer

ALPHABET is the only has the most letters in it.


 


Alphabet has all the 26 letters from A - Z. 


 


Hence, ALPHABET is one word that has the most letters in it.

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