Changes in a building's layout may affect the intruder alarm system. What action must take place?

• An increase in the grade of the system

• A new risk assessment completed

• A lowering of the system grade

• An inspection by the police

Which unit is typically used to measure file sizes?

• Voltage

• Ohms

• Bytes

• Tesla

BS 5839 recommends that fire alarm systems are inspected and serviced every:

• 2 months

• 4 months

• 6 months

• 8 months

The main purpose of undertaking a risk assessment is to:

• identify hazards and reduce the risk of them causing harm

• identify hazards and notify the Health and Safety Executive (HSE)

• eliminate risks and inform the insurance company

• eliminate risks and inform the relevant authority

In electrical testing, a continuity test is conducted to:

• measure voltage

• check a circuit’s integrity

• assess battery life

• determine resistance

What is the main advantage of using mesh topology?

• The communication is dependable

• The technology is high quality

• It is simple to use

• It has lower costs

A linear heat detection cable provides detection for the:

• top of the cable

• middle of the cable

• end of the cable

• entire length of the cable

What is the total resistance of 4 resistors connected in a series with values of 2 ohms, 10 ohms, 1 kohms and 600 ohms?

• 613 ohms

• 712 ohms

• 1,612 ohms

• 1,820 ohms

The main purpose of a Gantt chart in project management is to:

• list the required materials

• show the project timeline

• show the system layout

• list the clients’ requirements

Why is it important to calculate the correct storage device size for video surveillance systems?

• To ensure data integrity

• To optimise recording duration

• To reduce energy consumption

• To decrease the frame rates