Science and Technology - General Knowledge Questions

1 .

Which receptors adapt most slowly?

smell receptor

touch receptors

pressure receptors

nociceptors

Correct Answer : nociceptors

2 .

Tempera paint is often used to create

Clay vessels

Sharp lines and details

Both (a) & (b)

None of the above

Correct Answer : Sharp lines and details

Tempera paint is often used to create Sharp lines and details. This paint is popular in schools and can be used for finger painting.

3 .

The longest bone in the human body is

tibia

fibula

femur

stapes

Correct Answer : femur

The femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.

4 .

Choose the correct order of electrical resistivity of metals.

Hg > Ni > W > Ag

Ag > W > Ni > Hg

Ag > W > Hg > Ni

Ag > Ni > Hg > W

Correct Answer : Hg > Ni > W > Ag

5 .

Which of the following is a micronutrient?

Vitamin A

Calcium

Iron

All of the above

Correct Answer : All of the above

Micronutrients are ne tothe nutrients which our body requires for functioning and to maintain immune to micro organisms. They include

1) Vitamins

2) Minerals

Vitamins : A,B1,B2,B3,B5,B6,B8,B9,B12,C,D,E,K.

Major minerals : calcium, magnesium, chlorine, phosphorus, potassium and sodium.

Oligo-elements (trace minerals) : iron, copper, zinc, iodine, manganese, chromium, cobalt, selenium.

6 .

Which fibre is also called as artificial silk?

Acrylic

Nylon

Polyester

Rayon

Correct Answer : Rayon

Frequently, "artificial silk" is just a synonym for rayon. ... When made out of bamboo viscose it is also sometimes called bamboo silk.

7 .

Energy travels from Sun to Earth through

modulation

radiation

conduction

convection

Correct Answer : radiation

Energy is transferred from the sun to Earth via electromagnetic waves, or radiation. Most of the energy that passes through the upper atmosphere and reaches Earth's surface is in two forms, visible and infrared light.

8 .

Shampooing is which country's concept?

Japan

China

India

Germany

Correct Answer : India

The word shampoo entered the English language from India during the colonial era. It dates to 1762, and is derived from Hindi chāmpo (चाँपो ), itself derived from the Sanskrit root capayati (चपयति, which means to press, knead, soothe).

9 .

Silicon carbide is used for

Disinfectant

Making statues

Making cement paste

Cutting very hard substances

Correct Answer : Cutting very hard substances

Silicon Carbide is a semiconductor which has silicon and carbon. It is also called as carborundam. Silicon carbide is used for cutting very hard substances.

10 .

Carbon dioxide fire extinguishers are suitable for

Crackers

Electrical fires

Bombs

All of the above

Correct Answer : Electrical fires

A Carbon Dioxide Fire extinguisher is a specific type of fire extinguisher that can be used on electrical fires and liquid flammable type of liquids and gases.