SIMPLIFICATION APTITUDE QUIZ

The machinability of aluminium increases when _________ is added to aluminium.

Magnesium

Lead and bismuth

Silicon

Copper

TRUE ANSWER : ?
YOUR ANSWER : ?

Hardness of upper bainite (acicular structure) is about

RC 48

RC 57

RC 65

RC 80

TRUE ANSWER : ?
YOUR ANSWER : ?

The property of a material essential for spring materials is

Resilience

Ductility

Stiffness

Plasticity

TRUE ANSWER : ?
YOUR ANSWER : ?

The stiffness is the ability of a material to resist

None of these

Externally applied forces with breakdown or yielding

Deformation under stress

Fracture due to high impact loads

TRUE ANSWER : ?
YOUR ANSWER : ?

The material widely used for making pendulums of clocks is

Heat resisting steel

Stainless steel

High speed steel

Nickel steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following material has maximum ductility?

Copper

Nickel

Aluminium

Mild steel

TRUE ANSWER : ?
YOUR ANSWER : ?

The ability of a material to absorb energy in the plastic range is called

Creep

Toughness

Fatigue strength

Resilience

TRUE ANSWER : ?
YOUR ANSWER : ?

Admiralty gun metal contains

Alloy of tin, lead and cadmium

Iron scrap and zinc

63 to 67% nickel and 30% copper

88% copper, 10% tin and rest zinc

TRUE ANSWER : ?
YOUR ANSWER : ?

The bond formed by transferring electrons from one atom to another is called

None of these

Covalent bond

Metallic bond

Ionic bond

TRUE ANSWER : ?
YOUR ANSWER : ?

For a steel containing 0.8% carbon

There are two critical points

There is only one critical point

There is no critical point

There can be any number of critical points

TRUE ANSWER : ?
YOUR ANSWER : ?

↑