GATE Questions

Q:

Which one of the following is true of tRNAs?

A) tRNAs are double-stranded. B) There are four types of tRNA.
C) Each tRNA binds a particular amino acid. D) All of the above
 
Answer & Explanation Answer: C) Each tRNA binds a particular amino acid.

Explanation:

tRNA abbreviated as A transfer RNA is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical link between the mRNA and the amino acid sequence of proteins.

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Q:

One major cause of floods is

A) light rain over a large area B) a decrease in stream discharge
C) rapid spring snowmelt D) increased capacity of stream channels
 
Answer & Explanation Answer: C) rapid spring snowmelt

Explanation:

There are lots of reasons behind the flood in any area but the main reason is a heavy downpour or rapid snowmelt can flood canyons with a mixture of soil, rock, and water is a major cause of floods.

 

When the spring times come, sometimes there's a lot of warmth that suddenly comes, especially nowadays when there are things such as global warming. So the snow melts and large amounts of water can flood the fields that are often found at the foot of a mountain or similar things.

 

But they may also be caused by deforestation, drainage channel modification from a landslide, earthquake or volcanic eruption. Examples include outburst floods and lahars.

 

 

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Q:

Which of the following CANNOT be considered a single phase?

A) a heterogeneous mixture B) a pure solid
C) a pure liquid D) a homogeneous mixture
 
Answer & Explanation Answer: A) a heterogeneous mixture

Explanation:

A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.

 

Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.

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Q:

Which memory is nonvolatile?

A) Floppy discs B) Magnetic tape
C) ROM D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A computer has two types of memory.

1. Non-volatile and

2. Volatile.

 

Volatile memory is computer memory that requires power to maintain the stored information.

* It is a temporary memeory which cannot contain information permanently.

Example :: RAM or Random Access Memory

 

Non-volatile memory is computer memory that can retain the stored information even when not powered.

* It is a permanent memory in which data is stored in permanently.

Examples :: Hard disc, ROM, Floppy discs, Magnetic tape,...

 

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Q:

Correct word of ahmpabja?

Answer

ABP Majha is the correct word of the given jumbled word.

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Q:

Which of the following is a renewable source of energy

A) Natural gas B) Coal
C) Wind D) Oil
 
Answer & Explanation Answer: C) Wind

Explanation:

The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment.


Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

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Q:

When should you discard a PFD?

A) When it is too small B) When its been used 1 year
C) When its been used 1 month D) When it has a torn strap
 
Answer & Explanation Answer: D) When it has a torn strap

Explanation:

Personal flotation devices (PFDs), have life span upto it is damaged. Hence, When it has a torn strap you should discard a PFD.

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Q:

A sentence whose meaning is unclear

A) Anonymous B) Ambiguous
C) Unanimous D) Congruent
 
Answer & Explanation Answer: B) Ambiguous

Explanation:

A sentence whose meaning is unclear is called as Ambiguous.

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