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WorksheetsThird Quarter EXamination 2025-2026
Total questions: 50
Worksheet time: 25mins
Which component is used to resist the flow of current?
Capacitor
Diode
Inductor
Resistor
Why are resistors used in circuits?
To amplify signals
To store electrical energy
To store magnetic energy
To control the amount of current
Which component is best suited for storing magnetic energy in a circuit?
Capacitor
Diode
Inductor
Resistor
A student suggests using a capacitor instead of a resistor to limit current. How would you evaluate this?
Incorrect, capacitors amplify signals
Correct, capacitors act like resistors
Incorrect, capacitors store charge not limit current
Correct, capacitors limit current directly to the circuit
What does the gold band on a resistor typically indicate?
5% tolerance
10% tolerance
20% tolerance
No tolerance
A resistor with bands brown, black, red, gold has what resistance?
1 kΩ ± 5%
10 Ω ± 5%
100 Ω ± 5%
10 kΩ ± 5%
You are asked to design a resistor for 3.3 kΩ ± 5%. Which color bands would you select?
Orange, Orange, Red, Gold
Orange, Orange, Black, Gold
Orange, Orange, Brown, Gold
Orange, Orange, Yellow, Gold
Which law defines the relationship between voltage, current, and resistance?
Coulomb’s Law
Faraday’s Law
Kirchhoff’s Law
Ohm’s Law
Which component would you use to smooth voltage fluctuations?
Capacitor
Diode
Inductor
Resistor
A circuit has resistors in series. How is total resistance calculated?
Divide voltage by current
Add all resistances together
Multiply resistances together
Subtract smaller resistance from larger
Why is the red probe connected to the positive terminal?
To store charge
To reduce voltage
To prevent resistance
To measure correct polarity
A diode shows conduction in both directions. What does this indicate?
It is open
It is shorted
It is functional
It is storing charge
You are asked to design a test for a battery. Which Multitester setting would you choose?
AC Voltage
Amperes
DC Voltage
Ohms
Which component allows current in one direction only?
Capacitor
Diode
Inductor
Transistor
Why are parallel circuits used in household wiring?
They reduce voltage
They prevent current flow
They allow independent operation of appliances
They increase resistance of every circuit in the residential
Connecting a capacitor backwards can cause what?
Better function
Increased storage
Damage or explosion
Reduced resistance
Which tool is used to melt solder?
Hammer
Pliers
Screwdriver
Soldering iron
Why is a multimeter versatile?
It measures only voltage
It measures only current
It measures only resistance
It measures current, voltage, and resistance
Which instrument would you use to observe the waveform of a signal?
Ammeter
Multimeter
Oscilloscope
Voltmeter
A multimeter shows infinite resistance across a resistor. What does this indicate?
The resistor is shorted
The resistor is functional
The resistor is open or faulty
The resistor is storing charge
Why is flux important in soldering?
It tightens screws
It prevents oxidation
It cuts wires quickly
It measures resistance
Which tool would you use to solder two wires together?
Clamp
Hammer
Screwdriver
Soldering iron
A solder joint looks dull and cracked. What does this indicate?
It is a short circuit
It is a cold solder joint
It is a proper connection
It is a strong solder joint
What does CCTV stand for?
Closed Circuit Television
Computer Circuit Television
Controlled Camera Television
Continuous Camera Television
Which cable would you use to connect CCTV cameras?
Coaxial cable
Fiber cable
Power cable
Telephone cable
A CCTV camera shows no image. What does this indicate?
The camera is shorted
The camera is functional
The camera has no power
The camera is storing charge
A student uses a monitor to capture video. How would you evaluate this?
Incorrect, monitors display video
Incorrect, monitors reduce voltage
Correct, monitors store video indirectly
Correct, monitors capture video directly
Which connector would you use to connect a projector for video display?
HDMI
RJ45
USB
Coaxial
Which cable would you use to connect a television to a satellite dish?
Coaxial cable
Fiber optic cable
Twisted pair cable
USB cable
A network shows slow speed using twisted pair cable. What does this indicate?
The cable is damaged
The cable is functional
The cable is shorted
The cable is storing charge
What is the function of a DVR in a CCTV system?
Displaying video
Powering cameras
Recording video
Transmitting signals
Which device would you use to view live CCTV footage?
Camera
Monitor
Recorder
Sensor
Which device would you use to record CCTV footage?
Camera
Monitor
Recorder
Sensor
A CCTV camera shows no image. What does this indicate?
The camera is shorted
The camera is functional
The camera has no power
The camera is storing charge
A DVR shows no recording. What does this indicate?
The DVR has no input
The DVR is functional
The DVR is shorted
The DVR is storing charge
Why is a camera important in CCTV installation?
It reduces voltage
It prevents current flow
It captures video footage
It measures resistance indirectly
Which device would you use to detect movement in CCTV systems?
Camera
Monitor
Recorder
Sensor
Which device would you use to power CCTV cameras?
DC Adaptor
Monitor
Recorder
Sensor
A CCTV camera shows no image. What does this indicate?
The camera is shorted
The camera is functional
The camera has no power
The camera is storing charge
A CCTV system shows poor video quality. What does this indicate?
The cable connection is weak
The cable connection is strong
The cable connection is shorted
The cable connection is storing charge
What does FDAS stand for?
Fire Detection and Alarm System
Fire Distribution and Alert System
Flame Detection and Alarm Setup
Flame Distribution and Alert System
Which device would you install to control FDAS components?
Fire Alarm Control panel
Manual call point
Smoke detector
Sounder
A smoke detector does not activate during fire drill. What does this indicate?
The detector is shorted
The detector is functional
The detector is storing charge
The detector is improperly installed
A control panel shows detector fault signal. What does this indicate?
The detector wiring is loose
The detector wiring is shorted
The detector wiring is functional
The detector wiring is storing charge
Which of the following best describes the primary purpose of an FDAS?
To provide emergency lighting
To ventilate smoke from a building
To detect, alert, and suppress fires
To control building access during a fire
Which type of fire detector is designed to respond to a specific temperature?
Flame detector
Heat detector
Smoke detector
UV detector
If you need to detect a smoldering fire in a library, which detector is most effective?
Flame detector
Heat detector
Ionization smoke detector
Photoelectric smoke detector
A paint booth contains flammable materials. Which detector is most appropriate?
Air sampling
Beam detector
Flame detector
Heat detector
What is a key advantage of an addressable system over a conventional system?
Addressable systems are cheaper
Addressable systems are easier to install
Addressable systems can pinpoint the exact location of a fire
Addressable systems use less power
Which factor MOST important when selecting a fire detection system?
Building aesthetics
Cost of installation
Occupancy type and potential fire hazards
The color of the detectors
