All Exams Test series for 1 year @ ₹349 only
Question

Which tool is primarily used to create straight layout lines on metal surfaces?

This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is

Scriber with steel rule

Marking out, or layout, means drawing accurate reference lines on a metal workpiece before it is cut, filed or machined.

The tool used must scratch a fine, permanent line and be guided so that the line comes out straight and correctly placed.

A scriber has a hard, sharp point that scores a clear line into the metal surface, and a steel rule provides a straight edge to guide it.

Running the scriber along the steel rule therefore produces a straight, accurately positioned layout line, making this pair the right choice.

An outside micrometer and a vernier caliper are measuring instruments for sizes, and a try square only checks or marks squareness, so they are not primarily line-drawing tools.

A centre punch with a hammer only makes a small dot to locate a hole or start a drill, not a continuous straight line.

Hence, the answer is Scriber with steel rule.

Was this answer helpful?

Similar Questions

  1. A centre punch is used for:  

  2. What is the point angle of the center punch?

  3. Identify the point angle of a Centre punch from the given options.

  4. The tool, which is used for laying out diameter is

  5. What is the part of the universal surface gauge which helps to draw a parallel line along a dotted edge known as?

  6. What is the other name for Jenny spanners?

  7. Scribers are made of _______.

  8. In a workshop, a mechanic needs to determine the length of the diagonal support for a rectangular metal plate with sides of 9 cm and 12 cm. Which value represents the correct length of the diagonal support needed?

  9. Why is centre punching necessary on curved or cylindrical surfaces?

  10. Which of the following is a correct use of a centre punch during layout work?


Important Questions from Marking and Marking Tools

  1. A centre punch is used for:  

  2. What is the point angle of the center punch?

  3. Identify the point angle of a Centre punch from the given options.

  4. The tool, which is used for laying out diameter is

  5. What is the part of the universal surface gauge which helps to draw a parallel line along a dotted edge known as?

Need Expert Advice?
Upcoming Exams
RRB ALP
November 03, 2026
Test Series
RRB ALP img
Railways
RRB ALP 2026 Mock Test series
1035 Tests 1 Tests Free
1669 Attempts
4.3(257)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App