RRB Group D 2025 Question Paper (12-Aug-2026) (Shift 2)

Question 1

_______ is necessary for the thyroid gland to make thyroxine hormone.

Accepted Answer

Iodine

Answer

Calcium

Answer

Vitamin D

Answer

Iron

Question 2

Which of the following substances does NOT contain carbon in its chemical composition?

Accepted Answer

Water

Answer

DNA

Answer

Carbohydrates

Answer

Proteins

Question 3

Which of the following does NOT occur during inhalation in human beings?

Accepted Answer

Blood releases oxygen

Answer

Air enters the lungs

Answer

The chest cavity expands

Answer

The diaphragm flattens downward

Question 4

Which of the following best explains why sodium chloride is solid at room temperature?

Accepted Answer

It has a strong electrostatic attraction between ions.

Answer

It forms molecules held by covalent bonds.

Answer

It is held together by weak van der Waals forces.

Answer

It has metallic bonding between atoms.

Question 5

A student pushes two carts, one heavy and one light, with the same force. According to Newton's second law, what will happen to their accelerations?

Accepted Answer

The lighter cart will accelerate more than the heavier cart

Answer

The heavier cart will move with zero acceleration

Answer

The heavier cart will accelerate more than the lighter cart

Answer

Both carts will accelerate equally