Diodes and Applications MCQs

Question 1

The arrow in the schematic symbol of a diode points to

Accepted Answer

the p-type material, which is called the anode

Answer

the n-type material, which is called the anode

Answer

the n-type material, which is called the cathode

Answer

the p-type material, which is called the cathode

Question 2

The diode schematic arrow points to the:

Accepted Answer

cathode lead

Answer

trivalent-doped material

Answer

positive axial lead

Answer

anode lead

Question 3

When checking a diode, low resistance readings both ways indicate the diode is:

Accepted Answer

faulty

Answer

open

Answer

satisfactory

Answer

not the problem

Question 4

In a diode schematic, the anode is represented by a(n):

Accepted Answer

triangle

Answer

vertical line

Answer

zig-zag line

Answer

element indicator

Question 5

An IC regulator receives an overload; it will:

Accepted Answer

shut down

Answer

compensate for heat

Answer

provide more voltage

Answer

sample and adjust

Question 6

With full-wave rectification, current through the load resistor must be:

Accepted Answer

in the same direction

Answer

in opposite directions

Answer

to the external load

Answer

from the reverse biased diode

Question 7

A characteristic curve is the result of a current versus voltage plot of diode activity, which begins at the:

Accepted Answer

graph origin

Answer

3rd quadrant

Answer

current plot

Answer

voltage plot

Question 8

Rectifier output polarity depends upon:

Accepted Answer

diode installation

Answer

cycles of input

Answer

capacitor polarity

Answer

half or full wave

Question 9

With a 12 V supply, a silicon diode, and a 370-ohm resistor in series, what voltage will be dropped across the diode?

Accepted Answer

0.7 V

Answer

0.3 V

Answer

0.9 V

Answer

1.4 V