Questions

Q:

Which of the following is an example of system software?

A) Microsoft word B) Calculator
C) Operating system D) RAM
 
Answer & Explanation Answer: C) Operating system

Explanation:

In a brief, the system software is the interface between the hardware and user applications. System software is a type of computer program that is designed to run a computer’s hardware and application programs.

 

Examples : OS, System utilities, BIOS like mouse, keyboard, hard disc, Device drivers, Assembler,...

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Q:

What charge card, developed in 1950, was the first to be approved nationally in the US?

A) Discover B) MasterCharge
C) Visa D) Diner's Club
 
Answer & Explanation Answer: D) Diner's Club

Explanation:

 

The card was established by Frank McNamara and Ralph Schneider.

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Filed Under: Inventions

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Q:

Which nutrient has forms most of our body weight?

A) Water B) Fats
C) Carbohydrates D) Proteins
 
Answer & Explanation Answer: A) Water

Explanation:

Water is the important nutrient all organisms need. Humans has almost 60% of their body weight is water. Some organisms have 90% of their body weight is of water.

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Filed Under: Biology
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Q:

Which is the Largest Organ in the Human Body?

A) Heart B) Brain
C) Skin D) Liver
 
Answer & Explanation Answer: C) Skin

Explanation:

There are about 70 organs in the human body. The Top 10 largest organs in the human body based on size are:

1. Skin

2. Liver

3. Brain

4. Lungs

5. Heart

6. Kidneys

7. The Spleen

8. The Pancreas

9. Thyroxin

10. The Prostrate.

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Filed Under: Biology
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Q:

A Radioactive subatance emits

A) alpha particles B) beta particle
C) gamma particle D) all of the three
 
Answer & Explanation Answer: D) all of the three

Explanation:
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Filed Under: Chemistry

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Q:

Gasoline is useful in cars because it has

A) chemical potential energy B) electrical potential energy
C) gravitational potential energy D) kinetic energy
 
Answer & Explanation Answer: A) chemical potential energy

Explanation:

Gasoline is a colorless petroleum-derived flammable liquid that is used primarily as a fuel in spark-ignited internal combustion engines. It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. It is also called as Petrol. It has chemical potential energy, in combustion it is turned into light, sound, heat and kinetic energy.

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Filed Under: Physics
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Q:

In 1955, Imperial Bank of India, a leadimg commercial bank of that time was nationalised and renamed as:

A) Central Bank of India B) Bank of India
C) Indian Bank D) State Bank of India
 
Answer & Explanation Answer: D) State Bank of India

Explanation:
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Filed Under: Indian Economy

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Q:

DNA is made of repeating units called

A) Nucleotides B) Ribozomes
C) Peptides D) Aminoacids
 
Answer & Explanation Answer: A) Nucleotides

Explanation:

DNA is a very long chain polymer made up of thousands of repeating units called nucleotides.

 

Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base.

 

The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.

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Filed Under: Biology
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