Material Science and Engineering Previous Question Papers - 1

Question: 1

Carburization of steel _______

(A) Decreases its strength

(B) Makes it corrosion resistant

(C) Makes it less brittle

(D) Improves its fatigue resistance

Question: 2

Ferrites have _____

(A) Higher specific gravity compared to iron

(B) Low resistivity

(C) Low eddy current loss

(D) Low copper loss

Question: 3

Bohr magneton is unit of ______

(A) Hysteresis loss

(B) Polarisability

(C) Magnetic energy

(D) Permanent dipole moment due to spin

Question: 4

Manganin, an alloy of copper and manganese is used in

(A) Standard resistances

(B) Ballast resistors

(C) Heating elements

(D) Soldering material

Question: 5

Permeance is inversely related to ______

(A) Reluctance

(B) Capacitance

(C) Resistance

(D) Conductance