Steel is welded using the ________________ flame ?

Related Mcqs:

Which of the following materials has the poorest electrical conductivity ?

A. Carbon B. Aluminium C. Silver D. Stainless steel...

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?

A. E = 2G (1 + v) B. E = G (1 + v) C. E = G (1 + v)/2 D. E = 2G (1 + 2v)...

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively ?

A. 2 B. 8 C. 10 D. 40...

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness ______________ metre?

A. 0.01 B. 0.1 C. 0.25 D. 0.5...

An approximately _____________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section ?

A. Adiabatic B. Isothermal C. Isentropic D. Isochoric...