a) 6000 C
b) 7230 C
c) 11470C
d) 14930C
Connecting rod is usually made from
a) Low carbon steelÂ
b) High carbon steel
c) Medium carbon steel
d) High speed steel
The cupola is used to manufacture
a) Pig iron
b) Cast iron
c) Wrought iron
d) Steel
The charge is fed into the blast furnace through the
a) Stack
b) ThroatÂ
c) Bosh
d) Tuyers
Iron ore is usually found in the form of
a) Oxides
b) Carbonates
c) Sulphides
d) All of these
The hardness is the property of a material due to which it
a) Can be drawn into wires
b) Breaks with little permanent distortion
c) Can cut another metal
d) Can be rolled or hammered into thin sheets
The toughness of a material when it is heated
a) Remains same
b) Decrease
c) Increase
d) None of these
The strength is the ability of a material to resist
a) Deformation under stress
b) Externally applied forces with breakdown or yielding
c) Fracture due to high impact loads
d) None of these