Dephosphorization of molten pig iron is favoured by_______________________?
(A) Oxidising and basic slag
(B) Reducing and basic slag
(C) High activity co-efficient of phosphorous in metal
(D) Oxidising and neutral slag
Inertial forces are obtained, when the elastic forces are multiplied by ______________ number?
(A) Mach
(B) Froude
(C) Reynolds
(D) Euler
Metal shots used in shot blasting are made of ______________________?
(A) Stellite
(B) Steel
(C) Bronze
(D) Lead
Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?
(A) Piercing
(B) Spinning
(C) Drawing
(D) Extrusion
A pycnometer is used for the measurement of________________________?
(A) Flow rate of molten metal
(B) Specific gravity of a liquid
(C) Composition of alloys
(D) Concentration of a solution
M10 index of coke indicates its____________________?
(A) Compressive strength
(B) Hardness
(C) Abrasion resistance
(D) Impact strength
Addition of _____________________ to steel does not impart hardness?
(A) Nickel
(B) Copper
(C) Chromium
(D) Silicon
Larger length & diameter water pipes are made by____________________?
(A) Electrical resistance welding
(B) Die casting
(C) Semi-centrifugal casting
(D) Continuous casting