RRB Group D 2025 Question Paper (12-Aug-2026) (Shift 1)

Question 1

A patient develops frequent coughing and respiratory infections after starting to smoke. Which physiological change best explains this?

Accepted Answer

Loss of cilia function in the upper respiratory tract

Answer

Bronchial constriction throughout the lungs

Answer

Rapid increase in blood pressure and heart rate

Answer

Excess saliva secretion in the oral cavity

Question 2

A cyclist applies brakes to stop a moving bicycle. The work done by the braking force on the bicycle is _______.

Accepted Answer

Negative only

Answer

Both positive and negative

Answer

Zero

Answer

Positive only

Question 3

A mutation disrupts the transportation system in a plant, causing accumulation of oxygen and waste products in leaf cells. Which two life processes are most directly hindered as a result?

Accepted Answer

Respiration and excretion

Answer

Nutrition and growth

Answer

Nutrition and respiration

Answer

Growth and excretion

Question 4

Which of the following vectors correctly represents the displacement if an object moves from the point (0, 0) to the point (4, -3) in a plane?

Accepted Answer

(4, -3)

Answer

(3, -4)

Answer

(-3, 4)

Answer

(-4, 3)

Question 5

The correct decreasing order of the size of the particles in suspension, solution, and colloid is:

Accepted Answer

suspension > colloid > solution

Answer

suspension > solution > colloid

Answer

solution > colloid > suspension

Answer

colloid > suspension > solution

RRB Group D 2025 Question Paper (12-Aug-2026) (Shift 1)

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