​Brushing Up On Panels & Enclosures

Reviewed by Editorial Team

The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.

Learn about Our Editorial Process

| By Henryebnpmedia

Henryebnpmedia

Community Contributor

Quizzes Created: 6 | Total Attempts: 1,370

| Attempts: 87

Questions

Feedback

During the Quiz End of Quiz

Difficulty

Easy First Hard First Sequential

Share on Facebook Share on Twitter Share on Whatsapp Share on Pinterest Share on Email Copy to Clipboard Embed on your website

1/16 Questions

Because wires going into the enclosure of a burglar alarm are low voltage, there is no requirement for bushings or fittings.
- A. True
- B. False

About This Quiz

This quiz titled 'Brushing up on Panels & Enclosures' assesses knowledge on electrical safety, focusing on panels and enclosures for fire and burglar alarm systems. It covers NEC requirements, operational conditions, and false alarm terminologies, enhancing understanding of safety system installations and compliance.

brushing Up On Panels & Enclosures - Quiz

2.

A fire alarm system requires a dedicated branch circuit and locked breaker rated at no greater than ______.
- A. 20 amps
- B. 240 volts
- C. 15 amps
- D. 40 amps
Correct Answer

A. A. 20 amps

Explanation

A fire alarm system requires a dedicated branch circuit and locked breaker rated at no greater than 20 amps because this ensures that the circuit can handle the electrical load of the fire alarm system without overloading. It is important for the breaker to be locked to prevent accidental or unauthorized tampering with the circuit. Additionally, a higher amp rating could potentially cause damage to the fire alarm system or create a safety hazard.

Rate this question:
3.

Burglar alarm panels operate ______.
- A. at any temperature or humidity
- B. within specific temperature ranges specified by the manufacturer
- C. -20 deg. C to 140 deg. C
- D. only in climate-controlled environments
Correct Answer

A. B. within specific temperature ranges specified by the manufacturer

Explanation

Burglar alarm panels operate within specific temperature ranges specified by the manufacturer. This means that the panels are designed to function properly and reliably within certain temperature limits. Operating outside of these specified temperature ranges may result in malfunctions or failure of the alarm system. It is important to adhere to the manufacturer's guidelines to ensure the effectiveness and longevity of the burglar alarm panels.

Rate this question:
4.

The NEC does not specify a clear work space requirement for low-voltage applications.
- A. True
- B. False
Correct Answer

A. B. False

Explanation

B – NEC 2014 110.26(A)(1)(b)

Rate this question:
5.

A dedicated branch circuit is required for which panel?
- A. burglar alarm
- B. access control
- C. medical alert
- D. fire alarm
Correct Answer

A. D. fire alarm

Explanation

A dedicated branch circuit is required for a fire alarm panel because fire alarm systems require their own dedicated power supply to ensure they have a reliable source of electricity. This helps to prevent any potential power disruptions or interference from other electrical devices that may be connected to the same circuit. By having a dedicated branch circuit, the fire alarm panel can operate independently and maintain its functionality even during power outages or electrical issues in the building.

Rate this question:
6.

All alarm panel enclosures are UL listed for commercial applications, otherwise they wouldn’t be manufactured.
- A. True
- B. False
Correct Answer

A. B. False

Explanation

The statement suggests that all alarm panel enclosures are UL listed for commercial applications, otherwise they wouldn't be manufactured. However, this is not necessarily true. While it is common for alarm panel enclosures to be UL listed for commercial applications, it is not a requirement for their manufacturing. Some alarm panel enclosures may be manufactured without UL listing, especially for non-commercial or residential use. Therefore, the correct answer is false.

Rate this question:
7.

A location not suitable for the alarm panel is the ______.
- A. attic
- B. basement
- C. hall closet
- D. laundry room
Correct Answer

A. A. attic

Explanation

The attic is not a suitable location for the alarm panel because it is typically not easily accessible and may be subject to extreme temperatures, which can affect the functioning of the panel. Additionally, in case of an emergency, it would be difficult to quickly reach the panel if it is located in the attic.

Rate this question:
8.

When the source of the alarm notification voltage is the control panel, the output is considered ______.
- A. dry
- B. normally open
- C. normally closed
- D. wet
Correct Answer

A. D. wet

Explanation

When the source of the alarm notification voltage is the control panel, the output is considered "wet". This means that the control panel is providing power to the alarm circuit, allowing it to function properly. In contrast, a "dry" output would indicate that the control panel is not supplying power to the circuit, rendering the alarm non-functional.

Rate this question:
9.

Residential alarm-sounding devices shall have a minimum dB rating of ______ at ______.
- A. 50; 50
- B. 75; 25
- C. 85; 10
- D. 85; the pillow
Correct Answer

A. C. 85; 10

Explanation

C – UL 464, NTS Level 1

Rate this question:
10.

Two speakers connected in parallel will ______ the resistance.
- A. increase
- B. decrease
- C. have no effect on
- D. double
Correct Answer

A. B. decrease

Explanation

When two speakers are connected in parallel, the total resistance of the circuit decreases. This is because in a parallel circuit, the total resistance is inversely proportional to the sum of the reciprocals of the individual resistances. So, when the speakers are connected in parallel, the combined resistance decreases, allowing more current to flow through the circuit. This results in a louder sound as the speakers share the load and produce a stronger output.

Rate this question:
11.

According to the ______, the opening of equipment doors or hinged panels must be able to open ______ degrees.
- A. NEC; 45
- B. manufacturer; 90
- C. UL; 180
- D. NEC; 90
Correct Answer

A. D. NEC; 90

Explanation

D – NEC 2014 110.26(A)(2)

Rate this question:
12.

Ground fault circuit interrupters are not permitted to be used on alarm panels.
- A. True
- B. False
Correct Answer

A. B. False

Explanation

B – NEC 2014, 210.8(A)(5) exception

Rate this question:
13.

Alarm panel circuit boards have built-in transformers to reduce 110VAC to usable DC voltage for charging the backup battery.
- A. True
- B. False
Correct Answer

A. B. False

Explanation

Alarm panel circuit boards do not have built-in transformers to reduce 110VAC to usable DC voltage for charging the backup battery. Transformers are typically used to convert voltage levels, but in this case, it is not necessary as the circuit board can directly convert the AC voltage to DC voltage for charging the battery. Therefore, the correct answer is false.

Rate this question:
14.

A momentary closing, break or opening of a circuit or detection device with no apparent reason for the activation is called a ______.
- A. swinger
- B. false alarm
- C. All of the above
- D. None of the above
Correct Answer

A. C. All of the above

Explanation

C – NTS Level 1 Course

Rate this question:
15.

The NEC allows the connection of ______ to the small appliance branch circuit in the kitchen, pantry, breakfast room, dining room or similar area.
- A. the alarm panel
- B. an electric clock
- C. a refrigerator
- D. None of the above
Correct Answer

A. B. an electric clock

Explanation

B – NEC 2014, 210.52(B)(2)

Rate this question:
16.

What’s Wrong With This?Can you identify any issues with the installation depicted in the attached photo, if any?

Quiz Review Timeline (Updated): Nov 24, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Nov 24, 2023

Quiz Edited by
ProProfs Editorial Team
May 28, 2016

Quiz Created by
Henryebnpmedia

brushing Up On Panels & Enclosures

Because wires going into the enclosure of a burglar alarm are low voltage, there is no requirement for bushings or fittings.

Quiz Preview

A fire alarm system requires a dedicated branch circuit and locked breaker rated at no greater than ______.

Burglar alarm panels operate ______.

The NEC does not specify a clear work space requirement for low-voltage applications.

A dedicated branch circuit is required for which panel?

All alarm panel enclosures are UL listed for commercial applications, otherwise they wouldn’t be manufactured.

A location not suitable for the alarm panel is the ______.

When the source of the alarm notification voltage is the control panel, the output is considered ______.

Residential alarm-sounding devices shall have a minimum dB rating of at .

Two speakers connected in parallel will ______ the resistance.

According to the , the opening of equipment doors or hinged panels must be able to open degrees.

Ground fault circuit interrupters are not permitted to be used on alarm panels.

Alarm panel circuit boards have built-in transformers to reduce 110VAC to usable DC voltage for charging the backup battery.

A momentary closing, break or opening of a circuit or detection device with no apparent reason for the activation is called a ______.

The NEC allows the connection of ______ to the small appliance branch circuit in the kitchen, pantry, breakfast room, dining room or similar area.

What’s Wrong With This?Can you identify any issues with the installation depicted in the attached photo, if any?

​brushing Up On Panels & Enclosures