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Diode - Foundation Level Quiz

Total questions: 16

Worksheet time: 10mins

Name
Class
Date
1.

Identify the component

a)

Power diode

b)

SCR

c)

Signal Diode

d)

Normal Diode

2.

What is softness factor?

a)

S = (ta + tb) / tb

b)

S = ta / tb

c)

S = tb / ta

d)

S = (ta + tb) / ta

3.

An ideal power diode must have

a)

low forward current carrying capacity

b)

large reverse breakdown voltage

c)

high ohmic junction resistance

d)

high reverse recovery time

4.

Identify the Switching characteristics of power diode

a)
b)
c)
d)
5.

Find the odd one

a)
b)
c)
d)
6.

A power diode with small softness factor (S-factor) has

a)

small oscillatory over voltages

b)

small peak reverse current

c)

large oscillatory over voltages

d)

large peak reverse current

7.

Identify the graph

a)

VI Characteristics of Diode

b)

Hard Recovery

c)

Soft Recovery

d)

Switching Characteristics of Diode

8.

which of the following condition will be satisfied by a General purpose diode?

a)

Higher trr

b)

Lower trr

c)

Moderately high trr

d)

SF > 1

9.

ta in reverse recovery chara is due to _____

a)

charge stored in the bulk semiconductor

b)

due to the presence of drift region

c)

being power diode

d)

charge stored in depletion region

10.

Find the odd one

a)

conductivity modulation

b)

heavily doped

c)

high temperature capability

d)

2 layer 1 junction device

11.

Power Electronics means

a)

Combination of Power, electronics and control

b)

Combination Power, instruments

c)

Combination of electronics and communication

d)

Combination metrology and control

12.

Thyristor is been developed in the year

a)

1956

b)

1972

c)

1970

d)

1975

13.

MOSFET is also called as

a)

MOST

b)

IGFET

c)

IGBT

d)

Both a & b

14.

SCR is having ____

a)

3 layers, 4 terminals

b)

3 terminals, 4 layers

c)

Both a and b

d)

None of these

15.

ETO means

a)

Emitter turn off thyristor

b)

Emitter transistor off

c)

Emitter transistor on

16.

IGBTs are ____in operation than Power MOSFET

a)

Slower

b)

Faster

c)

Equal