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:

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:

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:

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:

The United Nations declared 2000-2010 as the International Decade for

A) Water for Life Decade B) Bone and Joint Decade
C) Second International Decade for the Eradication of colonialism D) International Decade for Natural Disaster Rreduction
 
Answer & Explanation Answer: B) Bone and Joint Decade

Explanation:
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Q:

The lining of the marrow cavity is

A) Endosteum B) Sarcolemma
C) Episteum D) Periosteum
 
Answer & Explanation Answer: A) Endosteum

Explanation:

The marrow cavity is also known as the medullary cavity. It is the central cavity of bone shafts where adipose tissue is stored. It is lined with a thin, vascular membrane called endosteum.

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Filed Under: Biology
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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
Exam Prep: Bank Exams

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Q:

The Book " The Man who knew Infinity" by Robert Kanigel and extensively reviewed in indian newspapers is the biography of

A) Vikram Sarabhai B) Sir Homi J Bhabha
C) Sir CV Raman D) Srinivasa Ramanujan
 
Answer & Explanation Answer: D) Srinivasa Ramanujan

Explanation:
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Filed Under: General Awareness

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