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BEE-2

Total questions: 55

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

What is binary number system?

a)

base-2

b)

radix-2

c)

both 1 & 2

d)

none of the above

2.

Complements are used to

a)

performing subtraction easily

b)

performing addition easily

c)

performing subtraction & addition easily

d)

performing multiplication easily

3.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
4.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
5.
How would you write the number two in binary?
a)
1001
b)
0001
c)
0000
d)
0010
6.
Computers can only understand 0s and 1s.
a)
True
b)
False
7.
A bit is 
a)
a numerical label assigned to each device.
b)
the smallest unit of data in a computer.
c)
a keyboarding term for typing.
d)
is a numeral system made up of 16 symbols.
8.

Which of the following is the best definition of a bit?

a)

An electrical signal in a wire

b)

A physical signal that becomes a digital signal

c)

A measure of computer graphics and sound

d)

A single 1 or 0 in a digital signal

9.

How many bits are in a single byte?

a)

4

b)

8

c)

12

d)

16

10.
What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10
a)
1111
b)
2020
c)
146.6
d)
?
11.
Calculate the binary addition:
1111
1011
Use binary addition rules + whiteboards!
a)
110101
b)
11110
c)
11011
d)
11010
12.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
13.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
14.

1101 to decimal

a)

15

b)

11

c)

12

d)

13

15.

10111 to decimal

a)

23

b)

27

c)

30

d)

31

16.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
17.
The Hexadecimal symbol 'A' has which of the below binary values?
a)
1010
b)
01010
c)
1101
d)
1011
18.
Convert the following binary number 010110 to Hexadecimal
a)
6A
b)
16
c)
A5
d)
71
19.
Convert A6F Hexadecimal into Decimal
a)
4826
b)
5874
c)
2671
d)
4578
20.
What number in hexadecimal comes after 7F?
a)
80
b)
8F
c)
7G
d)
8A
21.
Convert FF Hexadecimal into Decimal
a)
255
b)
15
c)
30
d)
128
22.
Convert 85 into Hexadecimal
a)
01010101
b)
55
c)
5A
d)
A5
23.
Binary = 0100 1010 0011 1101
Hex = ?
a)
43AD
b)
4A3D
c)
D3A4
d)
3A4D
24.
Binary 0101
Hex = ?
Dec = ?
a)
1, 1
b)
A, 5
c)
5, 5
d)
5, A
25.

Convert binary 111111110010 to hexadecimal.

a)

EE216

b)

FF216

c)

2FE16

d)

FE216

26.
What is the hexadecimal equivalent to the decimal
number 2610?
a.  8H
b.  1AH
c.  A1H
d.  20H
a)
A.
b)
B.
c)
C.
d)
D.
27.
What is the decimal equivalent to the binary number 11012?
a.  1110
b.  1310
c.  1410
d. 1210
a)
A.
b)
B.
c)
C.
d)
D.
28.
What is the decimal equivalent to the binary number 1101102?
a.  5410
b.  5010
c.  5510
d.  5110
a)
A.
b)
B.
c)
C.
d)
D.
29.
What is the binary equivalent to the decimal number 1710?
 a.  11012
b.  11112
c.  100012
d.  100112
a)
A.
b)
B.
c)
C.
d)
D.
30.

The circuit schematic image above represents an:

a)

Resistor

b)

LED

c)

Transistor

d)

Diode

31.

A transistor is most closely related to which of the following

a)

Resistor

b)

ransistor

c)

switch

d)

current

32.

A carbon resistor's level is measured in which of the following units?

a)

Resistance

b)

Ohms

c)

greek omega

d)

voltage

33.

The symbol above best represents which of the following?

a)

Voltage

b)

Power

c)

Ground

d)

LED

34.
What electronic component allows current to flow in one direction only? 
a)
Resistor
b)
LED
c)
Didode
d)
Switch
35.
What is the number value for green in the color code chart?
a)
6
b)
4
c)
2
d)
5
36.
Glass is a good conductor.
a)
True
b)
False
37.

What are the 3 legs of a transistor called?

a)

Base, Electrode, Commiter

b)

Bridge, Collector, Extruder

c)

Base, Collector, Emitter

d)

Brake, Collection, Emit

38.

In a Transistor ………………..

a)

IE = IC + IB

b)

IC = IE + IB

c)

IE = IC – IB

d)

IB = IC + IE

39.

What are the names of the terminals X, Y and Z?

a)

X = Base, Y = Collector, Z = Emitter

b)

X = Emitter, Y = Base, Z = Collector

c)

X = Collector, Y = Base, Z = Emitter

d)

X = Collector, Y = Emitter, Z = Base

40.

One function of the transistor is to_____________?

a)

rectify

b)

amplify

c)

limit

d)

control

41.
Emits light when a current passes through it
a)
fuse
b)
diode
c)
LED
d)
resistor
42.

In which region, the transistor operates.....?

a)

Saturation Region

b)

Cut-off Region

c)

Active Region

d)

None of the above

43.

In a NPN Transistor, the current carriers are ………….

a)

Acceptor Ions

b)

Donor Ions

c)

Free Electrons

d)

Holes

44.

Which terminal was heavily dopped....?

a)

Emitter

b)

Base

c)

Collector

d)

None of the above

45.

Which terminal was heavily dopped....?

a)

Emitter

b)

Base

c)

Collector

d)

None of the above

46.

A transistor is a …………… operated device

a)

Voltage

b)

Both Voltage and Current

c)

Current

d)

None of the Above

47.

At the Base-Emitter Junctions of a transistor, one finds ……………

a)

A Reverse Bias

b)

Low Resistance

c)

A Wide Depletion Layer

d)

None of the Above

48.

The number of depletion layers in a transistor is --------

(a)  

49.

The base of a transistor is ----- doped

(a)  

50.

Of the 3 regions Emitter,Base,Collector in a transistor which has the biggest size

(a)  

51.

In a transistor the base current IB is about ----% of emitter current IE

(a)  

52.

α of a transistor is -------

(a)  

53.

The input resistance of a transistor connected in -----arrangement is the highest

(a)  

54.

Which is the most widely used configuration?

a)

Common Emitter Configuration

b)

Common Base Configuration

c)

Common Collector Configuration

d)

All of the above

55.

What is Base-Width modulation?

a)

Base width decreases with increase in Reverse bias collector-base voltage

b)

Base width increases with increase in Reverse bias collector-base voltage

c)

Emitter width decreases with increase in Reverse bias collector-base voltage

d)

Emitter width increases with increase in Reverse bias collector-base voltage

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