Chromium molybdenum steel cannot be welded using ______________ welding ?

Related Mcqs:

1. Projection welding & stud welding is categorised as the _______________ welding?

   A. Pressure
   B. Thermit
   C. Resistance
   D. Arc

2. The maximum thickness of the metal which can be welded using ultrasonic welding is _____________ mm ?

   A. 0.5
   B. 3
   C. 10
   D. 25

3. Elimination of brittleness resulting from welding of saw blades is done by __________________ of the welded portion ?

   A. Annealing
   B. Toughening
   C. Work hardening
   D. Tempering

4. Steel containing low percentage of nickel, chromium & tungsten are termed as the _____________ steel ?

   A. Wrought
   B. Tool
   C. Alloy
   D. Plain carbon

5. Thermit welding is categorised as the ______________________ welding ?

   A. Forge
   B. Fusion
   C. Resistance
   D. Arc

6. Steel is welded using the ________________ flame ?

   A. Carburising
   B. Neutral
   C. Oxidising
   D. All A, B. & C

7. Stainless steel is welded with difficulty because of____________________?

   A. Its high melting temperature
   B. Chances of cracking
   C. Oxide film formation
   D. Chromium carbide formation

8. Stainless steel is welded using__________________?

   A. Oxy-acetylene flame
   B. Oxy-hydrogen flame
   C. Arc welding
   D. Inert gas arc welding

9. Presence of nickel & chromium in steel does not raise its _________________?

   A. Elastic limit
   B. Machining properties
   C. Ductility
   D. Resilience

10. What is the percentage of chromium in 18-4-1 high speed steel ?

    A. 1
    B. 4
    C. 18
    D. 23