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

What is the color of an oxygen gas cylinder?

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is

Black

Explanation:

In gas welding Heat source is the flame produced by the combustion of fuel gas and oxygen.

Acetylene (C 2H 2) is the principal fuel gas employed in this welding.

Gas cylinders are called by the name of the gas they are holding.

Name of the gas cylinder

Color coding

Oxygen

Black

Acetylene

Maroon

Coal

Red (with name coal gas)

Hydrogen

Red

Nitrogen

Grey (with black neck)

Air

Grey

Propane

Red (with a larger diameter and name propane)

Argon

Blue

Carbon Dioxide

Black (with white neck)

Was this answer helpful?

Similar Questions

  1. Which of the following equipment is used in arc welding?

  2. The electrodes are manufactured in two standard lengths namely:

  3. The simplest type of a seam is a ___________.

  4. The colour code used for hose pipe for oxygen line is _______

  5. What is the colour of Argon cylinder?

  6. Which type of welding is indicated with this symbol?

  7. Gas welding is also known as:

  8. The inner core of the flame in gas welding has _______ temperature

  9. What combination and proportion of gases will be used to set a neutral flame in gas welding?

  10. A process of joining similar metals by application of heat with or without application of pressure and addition of filter material is called ______


Important Questions from Welding

  1. The flame which contains excess oxygen than theoretical required:

  2. In which of the following welding techniques is heat primarily generated by a highly concentrated beam of coherent light?

  3. In gas welding, the inclination of the blow pipe with respect to the plate in Leftward welding is-

  4. Which one among the following welding processes uses non-consumable electrode?

  5. Submerged arc welding, an automatic welding process uses AC current up to

Need Expert Advice?
Upcoming Exams
RRB Technician
October 06, 2026
RRB JE
October 27, 2026
RRB ALP
November 03, 2026
Test Series
RRB ALP img
Railways
RRB ALP 2026 Mock Test series
1035 Tests 1 Tests Free
1072 Attempts
4.3(238)
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