RRB GROUP D GENERAL SCIENCE QUIZ

Question 1:

A falling coconut contains-

Nuclear energy

Sound energy

Kinetic energy

Chemical energy

Question 2:

The radiator of vehicle is used –

To heat the engine

To prevent thermal radiation

To keep the engine cool

None of these

Question 3:

Which of the following polymer is used for making clothes and fabrics like sweaters, and hats?

PAN

PVC

Rubber

Melamine

Question 4:

The reaction in which a substance loses its oxygen is known as which of the following?

Reduction

Oxidation

Hydrolysis

Both reduction and hydrolysis

Question 5:

Which of the following molecule is polar in nature?

Pentane

Hexane

Oxygen gas

Water

Question 6:

Which of the following is used to remove dirt and oil from clothes?

Sodium laurate

Potassium pentanoate

Glycerol

All of these

Question 7:

Like Mitochondria, which organelles have their own DNA and Ribosome ?

Plastids

Golgi apparatus

Centrosomes

Lysosomes

Question 8:

Antibody mediated immune system is based on-

T-lymphocyte

B-lymphocyte

Helper T-cell

None of these

Question 9:

Which of the following statements about Vitamin G is false.

Vitamin B2 is also known as vitamin G.

It is a fat soluble vitamin.

Its scientific name is riboflavin.

None of the above

Question 10:

A ball of mass $\mathrm{m}$ is moving with a momentum $\mathrm{p}$. What will be the kinetic energy of the ball?

$\frac{\mathrm{p}^{2}}{\mathrm{~m}}$

$\frac{2 \mathrm{p}^{2}}{\mathrm{~m}}$

$\frac{p}{m}$

$\frac{p^{2}}{(2 m)}$