Railways General Science Question Bank for RRB ALP & Group D

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1. In plants, which of the following converts light energy into chemical energy? *

1 point

Chlorophyll

Guard Cells

Stomata

Cuticle

2. Name the energy currency for most cellular processes.

1 point

Pyruvate

ATP

Glucose

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3. Urethra is a part of which system in the human body?

1 point

Autonomous Nervous System

Excretory System

Central Nervous System

Olfactory System

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4. Gibberellins help in the growth of

1 point

Stems

Fruits

Seeds

Shoot

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5. If a patient is suffering from diabetes, a doctor is likely to administer which of the following injections?

1 point

Glucose

Insulin

Penicillin

Multi-vitamin

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6. Binary fission is seen in

1 point

Amoeba

Plasmodium

Spirogyra

Hydra

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7. The plant cell wall is mainly composed of

1 point

Plastids

Chlorophyll

Cellulose

Stomata

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8. Which cell organelle plays a central role in cellular reproduction?

1 point

Plastids

Food Vacuoles

Mitochondria

Nucleus

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9.Blood is a type of which tissue?

1 point

Epithelial tissue

Connective tissue

Nervous tissue

Muscular tissue

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10.Diatoms are

1 point

unicellular eukaryotic organisms

symbiotic blue-green algae

heterotrophic eukaryotic organisms

slow growing lichens

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11. Massive amounts of gaseous exchange takes place in the leaves through

1 point

Stomata

Stroma

Petiole

Midrib

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12. Which of the following are called biological catalysts?

1 point

Enzymes

Proteins

Carbohydrates

ATP

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13. In human beings, the respiratory pigment is

1 point

ATP

Haemoglobin

ADP

Carotene

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14. Blood consists of a fluid medium called

1 point

Platelets

Serum

Plasma

Mucus

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15. Amphibians and many reptiles have ________hearts

1 point

two-chambered

three-chambered

four-chambered

five-chambered

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16. Which instrument is used to measure blood pressure?

1 point

Sphygmomanometer

Barometer

Glucometer

Spirometer

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17. Which of the following is associated with movement of water in plants?

1 point

Xylem

Phloem

Chlorophyll

Mitochondria

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18. In the human body, gustatory receptors detect

1 point

taste

touch

smell

light

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19.Dendrite and Axon are parts of

1 point

Nephrons

Neurons

Nuclei

Kidneys

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20. Adrenaline is

1 point

A hormone

An Enzyme

A gland

A type of nerve cell

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21. Calcium oxide reacts vigorously with water to produce calcium hydroxide releasing a large amount of heat. This is an example

1 point

combination reaction

decomposition reaction

displacement reaction

double displacement reaction

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22. What will happen if the pH in your mouth is below 5.5?

1 point

Bacteria in the mouth will get killed

Bacteria in the mouth will neutralize the access acid

Bacteria in the mouth will produce sugar by degradation of acids

Tooth enamel will get corroded

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23.What is Aqua Regia?

1 point

freshly prepared mixture of dilute hydrochloric acid and concentrated sulphuric acid in the ratio of 5:3

Freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1

Freshly prepared mixture of concentrated nitric acid and concentrated hydrochloric acid in the ratio of 3:6

Freshly prepared mixture of concentrated hydrochloric acid and concentrated sulphuric acid in the ratio of 2:3

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24. Diamonds can be synthesized by

1 point

reacting carbon and sulphuric acid

electrolysis of pure carbon and lead

subjecting pure carbon to very high pressure and temperature

double decomposition of carbon dioxide and nitric acid

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25. Döbereiner, a German chemist, tried to arrange the elements with similar properties into groups. What did he call these groups?

1 point

Triads

Triplets

Trios

Trinities

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26. How many atoms of Oxygen unite to form a molecule of Ozone?

1 point

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27. What is the chemical formula of aluminum oxide?

1 point

Al2O3

Al2O4

AlO3

Al2O5

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28. 2H2+ O2 → 2H2O What does the above chemical reaction indicate?

1 point

Two molecules of hydrogen combine with one molecule of oxygen to form two molecules of water

Two molecules of hydrogen combine with two molecules of oxygen to form two molecules of water

Two atoms of hydrogen combine with one atom of oxygen to form two atoms of water

Four molecules of hydrogen combine with one molecule of oxygen to form four molecules of water

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29. Which shell is closest to the nucleus of an atom?

1 point

K shell

L shell

M shell

N shell

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30.Protium, Deuterium and Tritium are atomic species of

1 point

Iodine

Chlorine

Oxygen

Hydrogen

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