Which of the following gases cause global warming ?

Related Mcqs:

Young’s modulus of a material is the measure of its ___________________?

A. Stiffness B. Malleability C. Creep resistance D. Tensile strength...

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...

Brazing is the joining of metals_____________________?

A. Without melting the base metal B. With a non-ferrous filler C. Both A. & B. D. Neither A. nor (B)...

Which of the following is not a charge material for cupola ?

A. Limestone B. Iron scrap C. Iron ore D. Pig iron...

Recrystallisation temperature of steel is ______________________ °C?

A. 50 B. 300 C. 500 D. 800...