Which of the following mixture of gases is required in gas welding?

Related Mcqs:

1. The gases used in different types of welding would include ___________?

   A. Oxygen and hydrogen B. Oxygen, hydrogen, acetylene and nitrogen C. Oxygen, acetylene and argon D. Oxygen and acetylene Submitted by: Rashid Mehmood...

2. The gases used in different types of welding would include:__________?

   A. oxygen and hydrogen B. oxygen, hydrogen, acetylene and nitrogen C. oxygen, acetylene and argon D. oxygen and acetylene Submitted by: Farjan Ahmed Soomro...

3. Cooking gas is mixture of which two gases?

   A. Hydrogen and oxygen B. Methane and CO2 C. Methane and oxygen D. None of these Submitted by: Muhammad Mumtaz Haider...

4. The gas, commonly known as “laughing gas”, is

   A. Carbon Dioxide B. Sulfur Dioxide C. Nitrous Oxide D. Sodium Oxide...

5. Which of the gas is not known as green house gas?

   A. Methane B. Nitrous oxide C. Carbon dioxide D. Hydrogen Submitted by: Farjan Ahmed Soomro...

6. As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what?

   A. “coma” around the comet’s nucleus and a long tail that points away from the sun B. “coma” that points away from the sun and a long tail around the comet’s nucleus C. Only “coma” around the comet’s nucleus D. Only a long tail that points away from the sun Submitted by: Muhammad Abdullah...

7. Which one of the following gases is readily soluble in water at room temperature?

   A. Chlorine B. Nitrogen C. Ammonia D. Carbon dioxide Submitted by: ABDUL HAYEE...

8. Which of the following gases do plants and trees give out during photosynthesis?

   A. Hydrogen B. Nitrogen C. Oxygen D. Carbon dioxide Submitted by: ABDUL HAYEE...

9. Which of the following noble gases is abundant in air?

   A. Neon B. Helium C. Argon D. Methane Submitted by: Malik Asghar Hussain...

10. Which of the following noble gases is not present in atmosphere?

    A. Argon B. Helium C. Radon D. Xenon Submitted by: Malik Asghar Hussain...