Oxyacetylene reducing flame is used while carrying out welding on___________________?

Related Mcqs:

1. Oxyacetylene reducing flame is used while carrying out welding on__________________?

   A. Alloy steel
   B. Grey cast iron
   C. Mild steel
   D. High carbon steel

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

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

3. Thermit welding is categorised as the ______________________ welding ?

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

4. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about _____________ °C ?

   A. 1800
   B. 2000
   C. 2400
   D. 3000

5. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is__________________?

   A. Black
   B. Silver grey
   C. Green
   D. Yellow

6. Current employed in resistance welding ranges from ____________________ kVA/cm2?

   A. 1.2 to 2.5
   B. 4.5 to 6.2
   C. 7.5 to 8.5
   D. 10.5 to 15.5

7. Oxygen cylinders used for autogenous (cutting/welding) purposes are ___________________?

   A. Seamless & made of steel
   B. Heat treated before use
   C. Made by sand casting
   D. Welded steel cylinders

8. In TIG welding, thoriated tungsten electrodes are used, because it ____________________?

   A. Has higher current carrying capacity
   B. Has better electron emissivity
   C. Is stronger than ordinary tungsten
   D. Is easy to prepare

9. Thermit welding uses the following energy source ?

   A. Electrical energy
   B. Chemical energy
   C. Energy of high velocity electrons
   D. Heat generated by friction

10. Consumable electrodes are used in the ____________________ welding?

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