Mechanical Engineering MCQs

A. Flywheel of steam engine
B. Cast iron pipes”
C. Cycle chains
D. Gas turbine blades

A. Amount of carbon it contains
B. The shape and distribution of the car-bides in iron
C. Method of fabrication
D. Contents of alloying elements

A. 80% or more iron
B. 50% or more iron
C. Alloying elements like chromium, tungsten nickel and copper
D. Elements like phosphorus, sulphur and silicon in varying quantities

A. Malleable iron
B. Nodular iron
C. Spheroidal iron
D. Grey iron

A. Free carbon
B. Graphite
C. Cementite
D. White carbon

A. tenacity
B. brittleness
C. plasticity
D. corrosion resistance

A. No graphite
B. A very high percentage of graphite
C. A low percentage of graphite
D. Graphite as its basic constituent of composition

A. Hard’
B. Soft
C. Ductile
D. Tough

A. Paramagnetic
B. Ferromagnetic
C. Ferroelectric
D. Dielectric

A. cementite
B. free carbon
C. flakes
D. spheroids