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Science and Technology - General Knowledge Questions
A)
Hg > Ni > W > Ag
B)
Ag > W > Ni > Hg
C)
Ag > W > Hg > Ni
D)
Ag > Ni > Hg > W

Correct Answer : Option (A) - Hg > Ni > W > Ag

A)
Vitamin A
B)
Calcium
C)
Iron
D)
All of the above

Correct Answer : Option (D) - 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.

A)
Acrylic
B)
Nylon
C)
Polyester
D)
Rayon

Correct Answer : Option (D) - Rayon

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

A)
modulation
B)
radiation
C)
conduction
D)
convection

Correct Answer : Option (B) - 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.

A)
Japan
B)
China
C)
India
D)
Germany

Correct Answer : Option (C) - 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).

A)
Disinfectant
B)
Making statues
C)
Making cement paste
D)
Cutting very hard substances

Correct Answer : Option (D) - 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.

A)
Crackers
B)
Electrical fires
C)
Bombs
D)
All of the above

Correct Answer : Option (B) - 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.

A)
Sodium thiosulphate
B)
Ammonium sulphate
C)
Borax
D)
Sodium sulphate

Correct Answer : Option (A) - Sodium thiosulphate

A)
Rubidium
B)
Sodium
C)
Lithium
D)
Caesium

Correct Answer : Option (B) - Sodium

A)
Potassium hydroxide
B)
Sodium bicarbonate
C)
Calcium carbonate
D)
Sodium nitrate

Correct Answer : Option (C) - Calcium carbonate

Unsourced material may be challenged and removed. A blackboard (also known as a chalkboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate, known, when used for this purpose, as chalk.