Science and Technology - General Knowledge Questions

1 .

Henry is the standard unit of

A)

Pressure

B)

Angular Motion

C)

Electrical resistance

D)

Electrical inductance

Correct Answer : Electrical inductance

2 .

Which of the following cannot be beaten into Sheets?

A)

Aluminum

B)

Silver

C)

Potassium

D)

Gold

Correct Answer : Potassium

3 .

Terrestrial life-forms require ____________ water for life processes.

A)

saline

B)

salt

C)

sour

D)

fresh

Correct Answer : fresh

4 .

Dolomite power is applied in some agricultural lands. The purpose of applying it is to

A)

increase the pH of the soil

B)

lower the pH of the soil

C)

increase the phosphorus content of the soil

D)

increase the nitrogen content of the soil

Correct Answer : increase the pH of the soil

Dolomite is a limestone compound that contains calcium and magnesium. It provides valuable nutrients to plants and helpschange the pH of the soil by raising it to match the plants' needs. It evenprovides more nutrients than straight lime. It is often used in addition to balanced fertilizers, particularly with seeding fruit.

5 .

Cinnamon is obtained from which part of the plant?

A)

Fruits

B)

Bark

C)

Roots

D)

Stem

Correct Answer : Bark

Cinnamon, (Cinnamomum verum), also called Ceylon cinnamon, bushy evergreen tree of the laurel family (Lauraceae) and the spice derived from its bark.

6 .

In a food chain, what is the difference between primary consumers and secondary consumers?

A)

Primary consumers eat only plants, secondary consumers eat primary consumers

B)

Primary consumers eat plants and other consumers, secondary consumers eat plants and decomposed matter

C)

Primary consumers eat other consumers, secondary consumers eat only plants

D)

Primary consumers eat plants and decomposed matter, secondary consumers eat plants and other consumers

Correct Answer : Primary consumers eat only plants, secondary consumers eat primary consumers

7 .

The number of neutrons in an atom is equal to the :

A)

atomic number

B)

Mass number

C)

Mass number - atomic number

D)

Number of electrons

Correct Answer : Mass number - atomic number

8 .

Which of the following is an ore of iron?

A)

Epsom Salt

B)

Dolomite

C)

Galena

D)

Siderite

Correct Answer : Siderite

9 .

Among the given nutrients, milk is a poor source of which of the following?

A)

Protein

B)

Carbohydrate

C)

Vitamin 'C'

D)

Calcium

Correct Answer : Vitamin 'C'

10 .

In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called

A)

Xylem fibres

B)

Endarch

C)

Exarch

D)

Xylem parenchyma

Correct Answer : Endarch

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