Questions

Q:

What type of macromolecule is DNA?

A) Proteins B) Carbohydrates
C) Nucleic acids D) All of the above
 
Answer & Explanation Answer: C) Nucleic acids

Explanation:

DNA stands for Deoxyribo nucleic acid. It is a nucleic acid made up of monomeric unit called Nucleotide.

A nucleotide consist of -

a) Sugar - Deoxyribose in DNA ( ribose in RNA)

b) An organic base- Adenine, cytosine, guanine.

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Filed Under: General Science
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Q:

The first female to take over the controls of a NASA spaceship is

A) Wilkie Collins B) Eileen Collins
C) Colette D) Kim Clijsters
 
Answer & Explanation Answer: B) Eileen Collins

Explanation:
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Q:

What is Tri-state logic?

Answer

Three Logic Levels are used and they are High, Low, HIgh impedance state. The high and low are normal logic levels & high impedance state is electrical open circuit conditions. Tri-state logic has a third line called enable line.

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Subject: Hardware

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Q:

Organisms that depend only on raw plant products are said to be 

A) herbivorous B) vegetarian
C) carnivorous D) omnivorous
 
Answer & Explanation Answer: A) herbivorous

Explanation:

Herbivorous organisms are those that take for their food, plant parts like leaves raw in contrast to vegetarian, which means that plant products are taken raw or after being cooked.

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Filed Under: Biology

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Q:

The concept of net domestic investment refers to

A) the difference between the market value and book value of outstanding capital stock. B) total investment less the amount of investment goods used up in producing the year's output.
C) the amount of machinery and equipment used up in producing the GDP in a specific year. D) gross domestic investment less net exports.
 
Answer & Explanation Answer: B) total investment less the amount of investment goods used up in producing the year's output.

Explanation:
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Filed Under: Indian Economy
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Q:

The world's oldest annual race has been held without a break since 1897. Name it.

Answer

The Boston Marathon

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Q:

Which IRQ does the system timer commonly use?

A) IRQ 1 B) IRQ 0
C) IRQ 3 D) IRQ 4
 
Answer & Explanation Answer: B) IRQ 0

Explanation:

IRQ-0 is the system timer commonly use in all computers. In a computer, IRQ is an interrupt request which acts as a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead.

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Q:

A wire of copper having length I and area of cross-section A is taken and a current / is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

A) P B) < P
C) > P D) 2P
 
Answer & Explanation Answer: C) > P

Explanation:

Aluminum has a resistivity varying from 2.65 to 2.82 × 10−8 Ω m.The resistivity of copper is generally given as: 1.72 x 10-8 Ω.m.So, since resistivity of aluminium is higher than that of copper, so Power dissipated will be greater than P. this is because rest of the factors (l, A and i) are constant.

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Filed Under: Physics
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