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Worksheets

AESS LA SIOL

Total questions: 45

Worksheet time: 43mins

Name
Class
Date
1.

Brown, Green, Black, Black, Brown. the specification of the resistance is

a)

150

Ω

±

1

%

150\Omega\pm1\%

150Ω±1%

b)

1500

Ω

±

1

%

1500\Omega\pm1\%

1500Ω±1%

c)

15000

Ω

±

1

%

15000\Omega\pm1\%

15000Ω±1%

d)

150000

Ω

±

1

%

150000\Omega\pm1\%

150000Ω±1%

2.

Yellow, Violet, Black, and Gold are the colors of the bands of a resistor. What is its resistance value?

a)

47

Ω

±

5

%

47\Omega\pm5\%

47Ω±5%

b)

470

Ω

±

5

%

470\Omega\pm5\%

470Ω±5%

c)

47

k

Ω

±

5

%

47k\Omega\pm5\%

47kΩ±5%

d)

470

k

Ω

±

5

%

470k\Omega\pm5\%

470kΩ±5%

3.

According to Ohm's Law, the voltage across a resistor in a circuit is equal to the

a)

current passing through the resistors divided by it's resistance.

b)

resistance divided by current passing through.

c)

current passing through the resistors multiplied by it's resistance.

d)

resistance multiplied by current passing through.

4.

What is the unit measurement for voltage in an electrical circuit?

a)

Ampere

b)

Watt

c)

Ohm

d)

Volt

5.

A current of 0.00001001 A can be written as

a)

100.009 mA

b)

10.001 mA

c)

10.01

μ

A

10.01\ \mu A

10.01 μA

d)

100.009

μ

A

100.009\ \mu A

100.009 μA

6.

An emf of 10V causes a current of 2000 mA to flow in a circuit. Calculate the resistance of the unit

a)

0.5

Ω

0.5\ \Omega

0.5 Ω

b)

2

Ω

2\ \Omega

2 Ω

c)

5

Ω

5\ \Omega

5 Ω

d)

20

Ω

20\ \Omega

20 Ω

7.

The unit capacitance is commonly expressed in

a)

Ohms

b)

Farads

c)

Henries

d)

Watts

8.

If the resistance of a resistor is 50 κΩ50\ \kappa\Omega  with a tolerance of 20%, the color code is

a)

blue, black and orange

b)

green, black and orange

c)

green, brown, yellow and gold

d)

blue, brown, orange and silver

9.

The measuring unit of inductance is

a)

Ohms

b)

Farads

c)

Henries

d)

Watts

10.

Current is 20mA and voltage is 30V. what is the value of R?

a)

6

Ω

6\ \Omega

6 Ω

b)

6

κ

Ω

6\ \kappa\Omega

6 κΩ

c)

1500

Ω

1500\ \Omega

1500 Ω

d)

1500

κ

Ω

1500\ \kappa\Omega

1500 κΩ

11.

"Hall Effect Sensors" are referring to

a)

Color Sensor

b)

Light Sensor

c)

Magnetic Sensor

d)

Optical Sensor

12.

Which one of the following component is used to reduce current flowing in an electronics circuit?

a)

Diode

b)

Resistor

c)

Inductor

d)

Capacitor

13.

In a waveform, the highest point of the waveform is known as the

a)

Amplitude

b)

Duration

c)

Pulse Width

d)

Frequency

14.

Which one of the following electronic component is used to store and release electrical energy?

a)

Zener diode

b)

Resistor

c)

Transistor

d)

Capacitor

15.

Given that the duration for 1 cycle of a signal is 5 mSec. What is the frequency of the signal?

a)

20 Hz

b)

200 Hz

c)

2 kHz

d)

20 kHz

16.

Which one of the following Boolean Expression is for the figure below?

a)

Q=ABCD

b)

Q=ABEF

c)

Q=CDEF

d)

Q=(AB)(CD)(EF)

17.

The hexadecimal equivalent for decimal number 1310 is

a)

15E

b)

51E

c)

35E

d)

53E

18.

what input values will cause an AND logic gate to produce a HIGH output?

a)

at least one input is LOW

b)

at least one input is HIGH

c)

all inputs are HIGH

d)

all inputs are LOW

19.

The most simple and effective device is used to control a valve is

a)

Light Sensor

b)

Magnetic Sensor

c)

Mechanical Sensor

d)

Optical Sensor

20.

The output will be a LOW for any case when one or more inputs are zero in the

a)

OR gate

b)

AND gate

c)

NOR gate

d)

NAND gate

21.

In the figured, Duty Cycle is referring to

a)

Tc

b)

T

c)

Tc/T

d)

T/Tc

22.

The function of the Light Sensor is to

a)

Light up the surrounding

b)

dim the light

c)

convert light energy into electrical signal

d)

convert electrical signal into light energy

23.

The basic logic gate whose output is the complement of the input is the

a)

NOR gate

b)

NAND gate

c)

NOT gate

d)

EXCLUSIVE-NOR gate

24.

Base 10 refers to which number system?

a)

Binary

b)

Decimal

c)

Hexadecimal

d)

Binary Coded Decimal

25.

The weight of the LSB as a Binary number is

a)

1

b)

2

c)

4

d)

8

26.

Given that the frequency of the signal is 500Hz . The duration of 1 Cycle of the signal is

a)

1µSec

b)

2µSec

c)

1mSec

d)

2mSec

27.

The Micro-Controller is a device

a)

Inside a micro-processor with built-in memory

b)

having a micro-processor with built-in memory inside

c)

inside a micro-processor without built-in memory

d)

having a micro-processor without built-in memory inside

28.

What is the decimal value of the hexadecimal number 666?

a)

1368

b)

1386

c)

1683

d)

1638

29.

Simplify Y = (AB).(AB+BC)

a)

AB+AC

b)

A+BC

c)

AB

d)

AC

30.

An Arduino Uno (AT mega328) is used in a new project. What is the recommended voltage range?

a)

3-5V

b)

5-7V

c)

7-12V

d)

12-15V

31.

Convert 110010012 (binary) to decimal

a)

120

b)

201

c)

102

d)

210

32.

What is the size of the EEPROM in Arduino Uni (ATmega328)?

a)

1 KB

b)

1 MB

c)

2 KB

d)

2 MB

33.

Every digit in a binary number is called a

a)

Bit

b)

Byte

c)

Word

d)

Nibble

34.

Which one of the following logic gates produces an logic output that is the opposite state of it’s input?

a)

OR gate

b)

AND gate

c)

NOT gate

d)

NOR gate

35.

How many entries are there in the truth table for a three-input logic circuit?

a)

4

b)

8

c)

12

d)

16

36.

A small circuit board that provide supporting circuitry to the Arduino Uno (ATmega328) is known as

a)

Breakouts

b)

Components

c)

Extensions

d)

Shields

37.

Which one of the following will set the pin 11 of the Arduino Uno microcontroller board as the output pin?

a)

Pinmode(OUTPUT, 11)

b)

pinMode(11, OUTPUT)

c)

Modepin(11, OUTPUT)

d)

modePin(OUTPUT,11)

38.

Which one of the following will write a PWM wave of 128 duty cycle to pin 9 on the Arduino Uno microcontroller Uno-board?

a)

analogWrite(128, 9)

b)

Writeanalog(9, 128)

c)

analogWrite(9, 128)

d)

Writeanalog(128, 9)

39.

Which one of the following will set the pin 13 of the Arduino Uno micro-controller board as the input pin?

a)

Pinmode(INPUT, 13)

b)

pinMode(13, INPUT)

c)

Modepin(13, INPUT)

d)

modePin(INPUT, 13)

40.

Which one of the following components detect light pulses and convert them into digital signals?

a)

The phototransistor

b)

The Light Dependent Resistor

c)

The Photovoltaic Sensor

d)

The Proximity Sensor

41.

Referring to the diagram of the Arduino Uno microcontroller board, how many digital I/O pins are there?

a)

6

b)

7

c)

10

d)

14

42.

Referring to the diagram of the Arduino Uno microcontroller board, how many Analogue I/O pins are there?

a)

6

b)

7

c)

10

d)

14

43.

In the diagram, which one of the keys is pressed when Row 4 (R4) and column 3 (C3) are connected?

a)

0

b)

9

c)

#

d)

D

44.

In the following diagram, which 2 traces are connected when the “8” key is pressed?

a)

R1 (Row 1), C2 (Column 2)

b)

R2 (Row 2), C1 (Column 1)

c)

R3 (Row 3), C2 (Column 2)

d)

R2 (Row 2), C3 (Column 3)

45.

The following truth tables represents on which behavior gate?

a)

OR gate

b)

NOR gate

c)

AND gate

d)

NAND gate