RRB Group D 2025 Question Paper (18-Aug-2026) (Shift 1)

Question 1

Which of the following cell structures is mainly responsible for providing support and maintaining the shape of eukaryotic cells?

Accepted Answer

Cytoskeleton

Answer

Nucleoid

Answer

DNA

Answer

Cell Sap

Question 2

If peristaltic movements in the oesophagus were disrupted, what would most likely happen to the food after it is chewed and swallowed?

Accepted Answer

Food would not move efficiently to the stomach

Answer

Food would be digested faster

Answer

Starch would be broken down more quickly

Answer

Saliva would increase

Question 3

When the length of a wire is doubled while keeping material and area of cross-section constant, what happens to its resistance?

Accepted Answer

The resistance becomes twice as much

Answer

The resistance becomes half

Answer

The resistance remains unchanged

Answer

The resistance becomes four times as much

Question 4

Why do plants need a specialized transportation system for water and minerals?

Accepted Answer

Because diffusion alone is insufficient for large distances in tall plants

Answer

Because plants have high energy needs like animals

Answer

Because plants move and need rapid transport throughout the body

Answer

Because diffusion does not occur in plants

Question 5

A runner moves 60 meters north and then 80 meters south in 20 seconds. Which statement is correct about her average speed and average velocity?

Accepted Answer

Average speed is greater than average velocity

Answer

Average speed equals average velocity

Answer

Average speed is less than average velocity

Answer

Average speed is zero