NDA GENERAL SCIENCE QUIZ

Question 1:

Genetic variation in a population arises due to

Mutations only

Recombination only

Reproductive isolation and selection

Mutations as well as recombination

Question 2:

Which of the following mineral is not part of Polymetallic nodules?

Mercury

Magnesium

Copper

Nickel

Question 3:

In glycolysis, 1 molecule of glucose is converted into

2 molecule of pyruvic acid

2 ATP

2 NADH

All of the above

Question 4:

Which of these statements is correct?

The Krebs Cycle, also called the citric acid cycle

It is the second major step in oxidative phosphorylation.

After glycolysis breaks glucose into smaller 3-carbon molecules

All of the above

Question 5:

Which part of a nephron is not present in the cortex?

Malpighian corpuscle

PCT

DCT

Henle's loop

Question 6:

Which of the following materials cannot be used as solar cells materials?

Si

GaAs

CdS

PbS

Question 7:

Google Doodle honoured Otto Wichterle on his 108th birthday He is known for which among the following inventions?

Contact lenses

Tv

Mobile

Light bulb

Question 8:

The graph given below shows the positions of a body at different times. Which part of the graph represent that the body is at rest ?
(i) A to B
(ii) B to C and
(iii) C to D.

Only 1

1 ,2 , 3

only 2

both 1 and 2

Question 9:

Which light source can we use as an insect trapper?

Fluorescent lamps

Mercury vapour lamp

Black lights and LED’s

light-emitting diodes

Question 10:

1 parsec⁓ 3.26163344 light-years (ly). Parsec is the unit of?

Density of stars.

Brightness of heavy bodies.

Astronomical distance.

Orbital velocity of giant stars.