RRB Group D 2025 Question Paper (11-Aug-2026) (Shift 3)

Question 1

If the direction of current in a straight conductor is reversed, what will be the effect on the direction of the surrounding magnetic field lines?

Accepted Answer

The magnetic field lines will reverse direction

Answer

The magnetic field lines will become weaker

Answer

The magnetic field lines will remain unchanged

Answer

The magnetic field lines will become stronger

Question 2

Under a microscope, skeletal muscles show alternate light and dark bands. The cells of this tissue are long, cylindrical, unbranched, and __________.

Accepted Answer

Multinucleate

Answer

Uninucleate

Answer

Spindle-shaped

Answer

Dead

Question 3

Molecules of compounds are formed by:

Accepted Answer

Different elements in fixed ratios

Answer

Similar atoms only

Answer

Random atomic combinations

Answer

Physical mixing of atoms

Question 4

Which physical quantity must be known to calculate the kinetic energy of a moving object?

Accepted Answer

Mass and velocity

Answer

Mass and time

Answer

Mass only

Answer

Velocity only

Question 5

Which of the following features is unique to longitudinal sound waves?

Accepted Answer

They form regions of compression and rarefaction.

Answer

They travel as side-to-side pulses in a medium.

Answer

They move as crests and troughs through a medium.

Answer

They vibrate only up and down in a medium.