GATE Questions

Q:

Which of the following elements is a metalloid?

A) arsenic B) boron
C) antimony D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.

The six commonly recognised metalloids are

boron,

silicon,

germanium,

arsenic,

antimony, and

tellurium.

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Filed Under: Chemistry
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Q:

Which describes the correct pairing of DNA bases?

A) guanine - cytosine B) adenine - cytosine
C) guanine - thymine D) thymine - cytosine
 
Answer & Explanation Answer: A) guanine - cytosine

Explanation:

The correct pairing of DNA bases among the given options is guanine - cytosine.

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3 3531
Q:

A man buys a trouser in Rs.1250. By reduction of 20% in the price of trouser, he can purchase a t-shirt also in the same amount that was initially paid for the trouser. Find the price of the t-shirt?

A) Rs. 250 B) Rs. 125
C) Rs. 225 D) Rs. 200
 
Answer & Explanation Answer: A) Rs. 250

Explanation:

Initial amount spent on trouser by the man = Rs. 1250

Now, by the reduction of 20% in 1250, he can buy t-shirt too.

=> t-shirt cost = 20% of 1250 = 20 x 1250/100 = 250

 

Therefore, the price of the t-shirt = Rs. 250.

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7 3526
Q:

Instruments for measuring Solar Radiation?

A) Ammeter B) Pyranometer
C) Dynamometer D) Anemometer
 
Answer & Explanation Answer: B) Pyranometer

Explanation:

Solar radiation instruments may be produced to measure different types of solar energy. When sunlight encounters the Earth's atmosphere, some of it is absorbed or scattered by water vapor, aerosols, clouds, and other air molecules. The radiation which penetrates to the Earth's surface is termed direct solar radiation.

 

A thermopile pyranometer is a type of actinometer used for measuring solar radiation on a planar surface and it is designed to measure the solar radiation flux density (W/m2) from the hemisphere above within a wavelength range 0.3 μm to 3 μm.

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Q:

At what temperature (in Fahrenheit) pure water freezes?

A) 0 B) 17
C) 32 D) 39
 
Answer & Explanation Answer: C) 32

Explanation:

32oFWe know that T(°F) = T(°C) × 1.8 + 3232(°F) = 0(°C)

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Q:

Which has the lowest albedo?

A) dark surfaces B) light surfaces
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) dark surfaces

Explanation:

Albedo refers to a material's ability to reflect sunlight. Since 30% of the sun's energy is reflected by the entire earth, the earth has an average albedo of 0.30.

Generally, dark surfaces have a low albedo and light surfaces have a high albedo.

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1 3525
Q:

Crack the code?

english1526360782.jpg image

Answer

STARTLING is a required 9 letter English word is still a word each time you remove a letter from the word. And how it is shown below: 


 


1. Remove the L, and the word becomes: STARTING


2. Remove one T, and the word becomes: STARING


3. Remove the A, and the word becomes: STRING


4. Remove the R, and the word becomes: STING


5. Remove the other T, and the word becomes: SING


6. Remove the G, and the word becomes: SIN


7. Remove the S, and the word becomes: IN


8. Remove the N, and the word becomes: I

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Q:

Which sentence contains both an adverb and a conjunction?

A) Adam crept silently up the stairs, but couldn't slow his heartbeat. B) The storm caused flooding as predicted.
C) Sneha was a kind person, but she hated people who spread rumors. D) Do you want the shrimp or the crab?
 
Answer & Explanation Answer: A) Adam crept silently up the stairs, but couldn't slow his heartbeat.

Explanation:

The sentence which contains both an adverb and a conjunction is "Adam crept silently up the stairs, but couldn't slow his heartbeat."

 

Here, Adverb - Silently and Conjunction - But.

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