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WorksheetsElectro2 MSW1
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following defines a transistor?
a)
A device that only resists current flow.
b)
A semiconductor device used to amplify or switch signals.
c)
A passive component that stores electrical energy.
d)
A device that converts mechanical energy to electrical energy.
2.
A transistor is considered a basic building block of:
a)
Obsolete mechanical systems.
b)
Ancient hydraulic systems.
c)
Modern electronics.
d)
Early pneumatic devices.
3.
How many terminals does a basic transistor typically have for connection?
a)
Two
b)
Three
c)
Four
d)
One
4.
In electronic systems, transistors are commonly used for what primary applications?
a)
Energy storage and release.
b)
Filtering and rectification.
c)
Modulation and demodulation.
d)
Amplification and switching.
5.
An integrated circuit (IC) is fabricated on what type of material?
a)
A ceramic block.
b)
A plastic board.
c)
A semiconductor wafer.
d)
A metallic sheet.
6.
What is another common term used to refer to an integrated circuit?
a)
Resistor
b)
Capacitor
c)
Diode
d)
Chip or microchip.
7.
The primary function of an integrated circuit is to:
a)
Generate high voltage.
b)
Dissipate thermal energy.
c)
Combine numerous electronic components into a miniaturized circuit.
d)
Convert analog signals to digital signals.
8.
Integrated circuits are found in virtually all:
a)
Large-scale industrial machinery.
b)
Traditional analog instruments.
c)
Modern electronic devices.
d)
Basic mechanical tools.
9.
What type of device detects a physical quantity and converts it into an electrical signal?
a)
Actuator
b)
Regulator
c)
Sensor
d)
Transformer
10.
A thermocouple is a common type of:
a)
Pressure sensor.
b)
Temperature sensor.
c)
Light sensor.
d)
Proximity sensor.
11.
Which type of sensor detects changes in applied force in contained or uncontained volumes?
a)
Light sensor.
b)
Motion sensor.
c)
Temperature sensor.
d)
Pressure sensor.
12.
A photodetector is a device that primarily detects:
a)
Pressure.
b)
Motion.
c)
Temperature.
d)
Light.
13.
Non-contact detection of objects and converting their presence into an electrical signal is characteristic of a:
a)
Proximity sensor.
b)
Motion sensor.
c)
Light sensor.
d)
Temperature sensor.
14.
Which type of sensor is commonly used in security systems and automated lighting?
a)
Proximity sensor.
b)
Motion sensor.
c)
Pressure sensor.
d)
Temperature sensor.
15.
LCDs, LEDs, and OLEDs are examples of:
a)
Types of transistors.
b)
Types of integrated circuits.
c)
Display technologies.
d)
Types of sensors.
16.
What is the fundamental role of transistors in electronic systems?
a)
To store electrical charge.
b)
To generate electromagnetic fields.
c)
To amplify or switch electrical signals and power.
d)
To convert light into electrical energy.
17.
Integrated circuits enable complex functionalities in electronic devices due to their:
a)
Large physical size.
b)
Simple circuit design.
c)
Small form factor.
d)
Use of only passive components.
18.
What distinguishes a proximity sensor from a motion sensor?
a)
A proximity sensor detects light.
b)
A motion sensor uses contact.
c)
A proximity sensor detects presence without contact.
d)
A motion sensor measures temperature changes.
19.
Which application directly utilizes the property of a light sensor?
a)
Measuring atmospheric pressure.
b)
Detecting changes in temperature.
c)
Measuring illuminance.
d)
Detecting the presence of nearby objects.
20.
The visual presentation of information in electronic systems is the purpose of:
a)
Sensor technology.
b)
Integrated circuit technology.
c)
Transistor technology.
d)
Display technologies.
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