ECE REVIEWER

101. How many neutrons does a copper atom have?

A. 32

B. 33

C. 34

D. 29



102. Bonding of atoms that is due to the force of attraction between positive ions and a group of
negative ions

A. Ionic bond

B. Covalent Bond

C. Electrostatic Bond

D. Metallic bond



103. An alloy of 22 percent iron and 78 per cent nickel.

A. Permalloy

B. Alnico
C. Constantan
D. Manganin

,104. An alloy of 40 percent iron and 60 percent nickel.

A. Alnico

B. Permalloy

C. Hipernik

D. Manganin



105. A commercial alloy of aluminum nickel, and iron with cobalt, copper and titanium

added to produce about 12 grades.

A. Alnico

B. Brass
C. Aluminum
D. Constantan


106. The idea of preventing one component from affecting another through their common electric and
magnetic field is referred to as

A. Hall effect

B. Grounding

C. Shielding

D. Limiting



107. The physical motion resulting from the forces of magnetic fields is called

. Motor action

B. Rotation
C. Repulsion
D. Torque action


108. Flux linkages equals

A. Flux times area of core

B. Flux times number of turns times area of core

C. Flux times number of turns times length of core

D. Flux times number of turns

, 109. Which of the following is a vector quantity?

A. Magnetic potential

B. Magnetic field intensity

C. Magnetic permeability

D. Flux density