RRB Group D 2025 Question Paper (20-Aug-2026) (Shift 1)

Question 1

According to the Rutherford's model, what is the main characteristic of an atom's nucleus?

Accepted Answer

It is small, dense, and positively charged

Answer

It contains only electrons

Answer

It is spread throughout the atom

Answer

It is large and negatively charged

Question 2

If a 4 kg object is moving at 3 m/s and another 2 kg object is moving at 6 m/s, which one has more kinetic energy?

Accepted Answer

The 2 kg object moving at 6 m/s

Answer

Both objects have equal kinetic energy

Answer

Neither object has kinetic energy

Answer

The 4 kg object moving at 3 m/s

Question 3

A eukaryotic cell that performs its functions and undergoes programmed cell death when no longer required is best described as a __________.

Accepted Answer

Normal cell

Answer

Malignant cell

Answer

Bacterial cell

Answer

Tumour cell

Question 4

Which of the following best describes why the unit of force is chosen as newton?

Accepted Answer

It makes the constant k in the formula "F = k ma" equal to 1

Answer

It simplifies the calculation of velocity

Answer

It relates force directly to weight in kilograms

Answer

It makes mass and acceleration equal in value

Question 5

How does the human ear respond to frequencies below 20 Hz?

Accepted Answer

The human ear cannot hear frequencies below 20 Hz

Answer

The human ear can hear all frequencies below 20 Hz

Answer

The human ear converts low frequencies into high frequencies

Answer

The human ear amplifies only high frequencies