Railway RRB RRC NTPC,GROUP-D FREE MOCK TESTS/GENERAL SCIENCE TEST-04

1/10

______________ are atoms having the same mass number but different atomic numbers

Isohyets

Isotopes

Isotherms

Isobars

2/10

Who discovered virus in biology?

Dmitri Ivanovsky

Edward Jenner

Robert Koch

Robert Hooke

3/10

Which condition is caused by the deficiency of Vitamin 'D' in children?

Haemolysis

Muscular dystrophy

Rickets

Osteomalacia

4/10

Which of the following gases is NOT a part of Greenhouse gases?

Nitrous oxide

Carbon dioxide

Oxygen

Methane

5/10

What is the SI unit of Force?

decibel

newton

hertz

dioptre

6/10

Which of the following elements is a diatomic molecule?

Hydrogen

Helium

Argon

Sulphur

7/10

In domestic water sewage, which of the following things is not a part of ‘Dissolved materials’?

Calcium

Nitrate

Phosphate

Sand

8/10

Osmotic pressure and Acid-base balance of body fluids are maintained by

Sodium

Magnesium

Fluorine

Zinc

9/10

"All green plants and bacteria which can synthesize their food by photosynthesis come under the category of "

Decomposers

Food givers

Producers

Intakers

10/10

Which structures act as wires of a telephone in the body?

Veins

Nerves

Muscles

Arteries

Result:

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