RRB Technician Exam - Daily 10 Question Practice Set (General Science)

1. Which of the following physical quantities remains constant for a freely falling body in a vacuum?

A) Kinetic energy

B) Potential energy

C) Total mechanical energy

D) Velocity

2. What type of mirror is primarily used as a rear-view mirror in vehicles?

A) Plane mirror

B) Convex mirror

C) Concave mirror

D) Cylindrical mirror

3. Which gas is majorly responsible for the 'greenhouse effect' on Earth?

A) Nitrogen

B) Oxygen

C) Carbon dioxide

D) Hydrogen

4. Which of the following is an example of a chemical change?

A) Melting of ice

B) Rusting of iron

C) Boiling of water

D) Dissolving sugar in water

5. Which element is the most abundant metal in the Earth's crust?

A) Iron

B) Aluminum

C) Calcium

D) Sodium

6. What is the chemical name of common baking soda?

A) Sodium carbonate

B) Sodium bicarbonate

C) Calcium chloride

D) Sodium chloride

7. Which organelle is known as the 'Powerhouse of the cell'?

A) Ribosome

B) Golgi apparatus

C) Mitochondria

D) Lysosome

8. Deficiency of Vitamin C in the human diet causes which of the following diseases?

A) Scurvy

B) Rickets

C) Beriberi

D) Night blindness

9. Which component of blood is primarily responsible for blood clotting at the site of an injury?

A) Red Blood Cells (RBCs)

B) White Blood Cells (WBCs)

C) Platelets

D) Plasma

10. Which of the following instruments is used to measure atmospheric pressure?

A) Ammeter

B) Barometer

C) Hygrometer

D) Thermometer