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M4: QUIZ NO. 3

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

It refers to the use of both holes and electrons as current carriers in the transistor structure.

a)

BIPOLAR

b)

FET

c)

MOSFET

d)

PONIT CONTACT

2.

A year were all important computers used transistors for logic, and ferrite cores for memory.

a)

1960

b)

1970

c)

1980

d)

1990

3.

Identify this symbol:

a)

POINT-CONTACT TRANSISTOR

b)

PNP TRANSISTOR

c)

NPN TRANSISTOR

d)

ALL OF THE ABOVE

4.

The first transistor was known as:

a)

POINT-CONTACT TRANSISTOR

b)

PNP TRANSISTOR

c)

NPN TRANSISTOR

d)

ALL OF THE ABOVE

5.

A year were the first transistor invented.

a)

1927

b)

1937

c)

1947

d)

1957

6.

The majority current carriers in the PNP transistor are:

a)

Hole

b)

Electrons

c)

Depletion regions

d)

Polarity

7.

Identify this symbol:

a)

POINT-CONTACT TRANSISTOR

b)

PNP TRANSISTOR

c)

NPN TRANSISTOR

d)

ALL OF THE ABOVE

8.

He was furious and took their work and invented the junction transistor and submitted a patent for it 9 days later

a)

Bardeen

b)

Brattain

c)

Shockley

d)

All of the above

9.

The majority current carriers in the NPN transistor are:

a)

Hole

b)

Electrons

c)

Depletion regions

d)

Polarity

10.

This diagram illustrate the:

a)

Biased PNP transistor

b)

Biased PPN transistor

c)

Biased PNN transistor

d)

Biased NPN transistor

11.

It is a semiconductor device which depends for its operation on the control of current by an electric field.

a)

FET

b)

BJT

c)

MOSFET

d)

JFET

12.

If the arrow points out, the transistor is:

a)

POINT-CONTACT TRANSISTOR

b)

PNP TRANSISTOR

c)

NPN TRANSISTOR

d)

NPP TRANSISTOR

13.

The first letter (P) in the PNP indicates the:

a)

Polarity of the voltage

b)

Flow of the current

c)

Low resistance

d)

High Resistance

14.

Identify this symbol:

a)

N-channel FET

b)

P-channel FET

c)

NPN

d)

PNP

15.

Which of the following controls the flow of current carriers?

a)

EMITTER

b)

BASE

c)

COLLECTOR

d)

HOLES

16.

If the arrow points in, the transistor is:

a)

POINT-CONTACT TRANSISTOR

b)

PNP TRANSISTOR

c)

NPN TRANSISTOR

d)

NPP TRANSISTOR

17.

When a transistor has zero current through it, it is said to be in a state of:

a)

Cut-on

b)

Cutoff

c)

High resistance

d)

Low resistance

18.

Which of the following controls the gives off the current carriers?

a)

EMITTER

b)

BASE

c)

COLLECTOR

d)

HOLES

19.

Which of the following always reversed biased?

a)

base-base

b)

base-emitter

c)

base-collector

d)

emitter-collector

20.

A bipolar transistor consists of:

a)

One layer terminal

b)

Two layer terminal

c)

Three layer terminal

d)

Four layer terminal