Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?

Related Mcqs:

Unit of viscosity in CGS system is_______________________?

A. gm .cm-1 sec-1 B. gm . cm2 . sec-2 C. gm .cm-2, sec-1 D. gm . cm . sec-1...

Lead is poured into the joint between two _______________ pipes ?

A. Mild steel B. Concrete C. Cast iron D. Asbestos cement...

The refrigerant freon-12 is chemically_______________________?

A. CCl2F2 B. CCl3F C. CClF3 D. CCl4F...

If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity_________________?

A. Is trebled B. Remains unchanged C. Decreases by a factor of 3 D. Decreases by a factor of 1/3...

In extrusion of metals, which of the following statement is true ?

A. Speed of the extruded material is same as that of ram speed B. Redundant work is a function of the die angle C. Relative motion between the billet surface and the container wall is always present D. Hollow ram is used for indirect extrusion...