Oklahoma Burglar Alarm/Residential Fire Alarm Practice Test

To connect a device to a network, three essential components are required: an IP address, a subnet mask, and a gateway. An IP address is a unique identifier assigned to each device on a network, allowing communication between devices. A subnet mask helps determine the network and host portions of the IP address. The gateway serves as an access point that connects the device to other networks or the internet. Together, these three components enable a device to establish and maintain network connectivity.

Falls are the leading cause of occupational fatalities and injuries. This means that more accidents and injuries occur due to falls than any other type of accident in the workplace. Falls can happen from heights, such as ladders or scaffolding, or on the same level due to slippery surfaces or tripping hazards. It is important for employers to implement safety measures, such as providing proper training, using appropriate protective equipment, and maintaining a hazard-free environment, to prevent falls and protect workers from harm.

A money clip is a small device that holds bills together in a compact manner. In this context, when bills are removed from a cash register tray, the money clip would be activated or triggered. This could be in the form of a mechanism that alerts the store owner or security personnel that money is being taken out of the cash register, thus acting as an anti-theft device.

The image depicts Ohm's law. Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor. The image might show a graph or diagram representing this relationship or could include symbols related to voltage, current, and resistance.

When testing for resistance on a multimeter, the correct setting to select is "Ohms." Ohms is the unit of measurement used to quantify electrical resistance. Selecting this setting allows the multimeter to measure the resistance in the circuit accurately. Amps, AC power, and DC power are not relevant for testing resistance and selecting these settings would not provide accurate results.

Underwriters Laboratory, also known as "UL," is a not-for-profit organization that specializes in product safety testing and certification. They provide independent verification and certification services to ensure that products meet safety standards. The term "underwriters" refers to insurance companies that initially funded the organization in the late 19th century. The name "Underwriters Laboratory" has become synonymous with product safety and is recognized worldwide.

According to NFPA 70, the number and size of conductors used in a raceway are determined by the raceway size. This means that the size of the raceway, such as its diameter or cross-sectional area, will dictate the number and size of conductors that can be installed within it. The raceway size is an important factor in determining the capacity and electrical load that the raceway can handle.

An electric ground is used to minimize electrostatic buildup that can damage alarm components. When electrical equipment is not properly grounded, it can accumulate static electricity. This buildup of static electricity can cause damage to sensitive components in the alarm system. By providing a path to ground, the electric ground helps to dissipate any static electricity, preventing it from damaging the alarm components.

The term "local" in the context of a local alarm system refers to an alarm system that is not monitored by a monitoring station. This means that when the alarm is triggered, there is no automatic notification sent to a central monitoring facility. Instead, the alarm is designed to sound within the premises where it is installed, alerting those nearby to the potential threat or danger. This type of system is typically used in smaller residential or commercial settings where there may not be a need for constant monitoring or a professional response team.

RFI stands for Radio Frequency Interference, which refers to any unwanted electromagnetic disturbance that can disrupt the normal functioning of wireless communication systems. Wireless systems rely on the transmission and reception of radio waves to transfer data or signals. Therefore, they are most susceptible to RFI because any external electromagnetic interference can interfere with the radio waves, causing disruptions, signal loss, or degraded performance. In contrast, addressable, cellular, and analog systems may also be affected by RFI, but wireless systems are specifically designed for wireless communication and are thus more vulnerable to this type of interference.

For peaked roofs, detectors should be spaced and located within three feet horizontally of the peak. This is because heat and smoke tend to rise, and by placing the detectors closer to the peak, they can detect any potential fire or smoke earlier. This allows for quicker response and evacuation if necessary, reducing the risk of damage and harm.

During a heart attack, the heart muscle is not receiving enough oxygen-rich blood, leading to chest pain. This pain can radiate to other parts of the body, such as the left arm. The left arm pain is a common symptom of a heart attack because the nerves that supply the heart and the left arm are connected. Therefore, experiencing pain in the left arm along with chest pain and difficulty breathing can be indicative of a heart attack.

The foot of the ladder should be located 1/4 the working length of the ladder from the wall. This ensures stability and prevents the ladder from tipping over. Placing the foot too far from the wall may cause the ladder to be unstable, while placing it too close may cause the ladder to lean too much and potentially fall. Therefore, positioning the foot at 1/4 the working length of the ladder provides a safe and balanced setup.

PIR motion sensors are most effective when mounted so that the intruder walks across the unit. This is because PIR sensors detect changes in infrared radiation, which is emitted by warm objects such as humans. When an intruder walks across the unit, their body heat will cause a change in the infrared radiation detected by the sensor, triggering an alarm or activating the sensor. This positioning ensures that the sensor has the best chance of detecting any movement within the monitored area.

When a licensee moves or changes employers in Oklahoma, they are required to notify the Oklahoma Department of Labor within 14 days. This notification allows the department to update their records and ensure that the licensee's information is accurate and up to date. Failing to notify the department within the specified timeframe may result in penalties or other consequences.

An EOLR (End of Line Resistor) is used in an alarm system to supervise a protective circuit. It is typically installed at the end of the circuit to monitor the integrity of the wiring. The EOLR provides a known resistance value that the system can monitor. If the circuit is intact, the system will detect the expected resistance. If there is a break or a fault in the circuit, the resistance will change, indicating a problem. Therefore, the EOLR plays a crucial role in supervising the protective circuit and ensuring its proper functioning.

All of the above systems are recommended for exposed falls of 6 feet or more. A safety net can be installed to catch a person in case of a fall, providing a passive protection system. Guard rails are a physical barrier that prevents falls by creating a barrier around the exposed area. Fall arrest systems, such as harnesses and lanyards, are designed to arrest a fall and minimize the impact on the person. Using all of these systems together ensures comprehensive protection against falls from heights.

When installing magnetic contacts on a steel door, it is important to consider that steel alters the magnetic characteristics of the contacts. This means that the presence of steel can affect the strength and effectiveness of the magnetic field created by the contacts. Therefore, adjustments may need to be made to ensure proper functioning and reliable operation of the contacts on a steel door.

When using exterior photoelectric detectors, an alarm signal shall be initiated only when a minimum of two detectors mounted on the same vertical plane are activated. This means that the system requires at least two detectors to detect an object in order to trigger an alarm signal. This helps to reduce false alarms and ensures that the detection is more accurate and reliable. Using multiple detectors increases the system's effectiveness in detecting and identifying potential threats or intrusions.

NEC Definitions - Riser cable

User error is the number one cause of false alarms because it refers to mistakes or incorrect actions taken by the user. This can include accidentally triggering the alarm, entering the wrong code, or forgetting to disarm the system before entering the premises. User error is a common cause of false alarms and can be easily prevented through proper education and training on how to use the alarm system correctly.

When resistors are connected in series, their resistances add up. So, if we connect two 1000 ohm resistors in series, the total resistance would be 1000 ohms + 1000 ohms = 2000 ohms. Therefore, this combination achieves an EOLR value of 2000 ohms.

When performing alarm and locksmith work in Oklahoma, a licensee must possess a valid, state-issued photo identification. This is important because it serves as proof of the licensee's identity and verifies that they are legally authorized to perform the work. It ensures that the licensee is properly identified and can be held accountable for their actions while on the job.

Smoke detectors should be installed at least 36 inches away from HVAC registers. This spacing is necessary to ensure that the airflow from the HVAC system does not interfere with the proper functioning of the smoke detector. Placing the smoke detector too close to the HVAC register could result in false alarms or a delay in detecting smoke in case of a fire. Therefore, it is important to maintain a sufficient distance between the smoke detector and HVAC registers to ensure their effectiveness.

The formula V = P/I can be used to solve for voltage (V). This formula states that voltage is equal to power (P) divided by current (I). By rearranging the formula, we can solve for voltage when power and current values are known.

The correct answer is 200 seconds. This means that any fault or disruption in the cabling between the control unit and the essential accessories of the electronic premises security system should be detected and indicated within 200 seconds. This ensures that any issues or faults in the system can be quickly identified and addressed, allowing for the uninterrupted operation of the security system.

Workers compensation is a form of insurance that provides medical benefits and wage replacement to employees who are injured on the job. In this case, the technician fell off a ladder and injured his wrist. The question asks how long the injury must be reported to the employer in order to be covered by workers compensation. The correct answer is 30 days, meaning that the technician has up to 30 days to report the injury to his employer and still be eligible for coverage.

The correct answer is "Cause an alarm that is clearly audible in all bedrooms." This is because in a residential alarm system, it is important for the fire detection devices to be able to alert the occupants of a fire in a timely manner. Having an alarm that is clearly audible in all bedrooms ensures that everyone in the house can hear the alarm and take appropriate action to evacuate the premises.

Putting resistors at the end of the line (EOL) allows the alarm panel to monitor the wiring for shorts. By placing resistors at the end of the line, any disruption or break in the circuit will cause a change in the electrical resistance, which can be detected by the alarm panel. This allows for the detection of shorts in the wiring, ensuring that any faults or malfunctions can be quickly identified and addressed.

The correct answer is "Alarm System - do not disconnect" in black. This label is necessary to clearly indicate that the breaker powers the outlet connected to the burglar alarm system. The label also serves as a warning to prevent accidental disconnection, ensuring the alarm system remains operational and the premises stay secure. The use of black color further emphasizes the importance of not disconnecting the breaker.

Alternating current is characterized by its ability to change polarity. Unlike direct current, which flows in one direction, alternating current reverses its direction periodically. The frequency at which this reversal occurs is measured in Hertz (Hz). In the case of the given answer, the frequency is specified as 60 times per second, meaning that the polarity of the current changes 60 times in one second. This frequent reversal of polarity allows for the efficient transmission of electrical energy over long distances and is a fundamental aspect of alternating current systems.

The typical location for a RJ31X is inside the alarm cabinet. This is because the RJ31X is a type of telephone jack that is used for connecting an alarm system to the telephone line. Placing it inside the alarm cabinet allows for easy access and connection to the alarm system.

A sinus wave represents an AC voltage on a multimeter. AC voltage is characterized by a continuously changing magnitude and direction, which is accurately represented by a sinusoidal waveform. The other options, such as a straight line or a straight line with dots, do not accurately depict the varying nature of AC voltage.

When two siren speakers are connected in series, the total resistance in the circuit increases. As a result, the current flowing through the circuit decreases, which leads to a decrease in the volume of each speaker. This is because the volume of a speaker is directly proportional to the current passing through it. Therefore, when speakers are connected in series, the volume of each speaker decreases.

The correct answer is IBC (International Building Code). The International Building Code is currently used to protect public health, safety, and general welfare as they relate to the construction of buildings. It provides minimum requirements for building design, construction, and maintenance, covering areas such as structural integrity, fire safety, accessibility, and energy efficiency. The IBC is widely adopted and enforced by many jurisdictions in the United States and internationally to ensure that buildings are constructed in a safe and sustainable manner.

A rapid, weak pulse is a symptom of heat stroke because when the body overheats, the heart tries to compensate by pumping blood faster. However, due to the strain on the cardiovascular system, the pulse becomes weak. This is a sign that the body is struggling to cool down and regulate its temperature. Other symptoms such as elevated body temperature, hot, moist skin, and difficulty breathing are also commonly associated with heat stroke.

The formula R= V/I is known as Ohm's Law, which states that the resistance (R) in an electrical circuit is equal to the voltage (V) divided by the current (I). This formula is widely used to calculate resistance in various electrical and electronic applications.

Data circuits are most negatively affected by electromagnetic interference (EMI). EMI refers to the interference caused by electromagnetic radiation from external sources, such as electrical equipment or radio waves. Data circuits, which transmit digital signals, are more susceptible to EMI because the interference can corrupt the transmitted data, leading to errors or loss of information. Power circuits, ground circuits, and alarm output circuits are less affected by EMI as they primarily carry power or control signals, which are less sensitive to interference.

According to the NEC, a single listed clamp or fitting can only connect one grounding conductor to a grounding electrode. This means that only one grounding conductor can be connected to a grounding electrode using a single clamp or fitting.

The monitoring station must be notified before servicing an alarm system in addition to the building owner or manager. The monitoring station plays a crucial role in receiving and responding to alarm signals, so they need to be informed about any maintenance or servicing activities to ensure proper functioning of the system.

NFPA 101 is often referred to as the Life Safety Code because it is a set of safety guidelines and requirements that aim to protect people from fire hazards and other life-threatening situations. This code covers a wide range of areas including building construction, fire protection systems, emergency exits, and evacuation procedures. It focuses on ensuring the safety of occupants in various types of buildings such as residential, commercial, and healthcare facilities. The Life Safety Code is widely recognized and adopted by many jurisdictions and organizations to promote and enforce fire safety standards.

A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system is called a plenum. This term is commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems to refer to a space where air is collected and then distributed to different areas. The plenum acts as a central hub for the airflow, allowing it to be evenly distributed throughout the building.

The document called NFPA 70 is commonly known as the National Electrical Code. This code is a set of standards and regulations that govern the safe installation and use of electrical systems in buildings. It provides guidelines for electrical design, installation, and maintenance to ensure the protection of people and property from electrical hazards. The National Electrical Code is widely adopted and enforced by local authorities and is an essential resource for electricians, engineers, and other professionals working with electrical systems.

UTP stands for Unshielded Twisted Pair. In cabling, UTP refers to a type of cable that consists of pairs of twisted wires that are not shielded. This type of cable is commonly used for Ethernet networks and telephone systems. The twisting of the wires helps to reduce electromagnetic interference, making it a reliable and cost-effective choice for data transmission. Unlike shielded cables, UTP does not have any additional shielding, which makes it easier to install and more flexible.

Low voltage wiring installations must comply with the adopted version of NFPA 70 (National Electric Code) and NFPA 72 (National Fire Code). This means that the wiring installations must adhere to the specific guidelines and regulations outlined in these codes to ensure safety and proper functioning. These codes are regularly updated to incorporate new technologies and best practices in the field of electrical and fire safety. By complying with these adopted versions of the codes, low voltage wiring installations can meet the required standards and minimize the risk of electrical hazards and fire incidents.

A licensed technician can supervise up to three trainees per job site. This ensures that the technician can effectively oversee and guide the trainees while maintaining a manageable workload. Having three trainees per job site allows for a balance between providing hands-on experience for the trainees and ensuring that the technician can provide adequate supervision and support.

The power consumed by a circuit can be calculated using the formula P = V x I, where P is power, V is voltage, and I is current. In this case, the voltage is 24V and the current is 2A. By substituting these values into the formula, we get P = 24V x 2A = 48W. Therefore, the correct answer is 48W.

The formula I= P/V is used to solve for Amps (I). This formula states that the current (I) is equal to the power (P) divided by the voltage (V). By rearranging the formula, we can calculate the current by dividing the power by the voltage.

Swinger bypass is the correct answer because it is a control panel feature that automatically prevents repeating alarms caused by a device on the same zone. This feature allows the control panel to recognize repeated activations from the same device within a certain time frame and bypass subsequent alarms to avoid unnecessary notifications. It helps to prevent false alarms and reduces the burden on monitoring personnel.

If a wire is broken in a Class B notification circuit, all devices between the fire alarm control panel and the break will remain operational. This is because in a Class B circuit, the devices are connected in a loop, and the break in the wire will only affect the devices after the break. The devices before the break will still receive power and continue to operate as normal.

The correct answer is $49. This is the application and license fee for a technician or salesperson.

Continuity is the measurement used to test conductivity of a circuit. Continuity refers to the uninterrupted flow of current in a circuit, indicating that there are no breaks or open circuits. By testing continuity, one can determine if there is a complete path for the current to flow, ensuring that the circuit is properly connected and functioning. Current, voltage, and wattage are related to the flow and power of electricity, but they do not specifically measure the conductivity or integrity of a circuit.

CL2R cable should be used when Class 2 circuits are run vertically and penetrate more than one floor. The "R" in CL2R stands for "riser," indicating that this cable is specifically designed for vertical installations. It is suitable for use in riser applications such as running through multiple floors. This cable is designed to meet the safety and performance requirements for vertical installations, making it the appropriate choice in this scenario.

The document referred to as the NPFA 72 is the Fire code. The NPFA 72 is a standard for the installation, testing, and maintenance of fire alarm systems. It provides guidelines and requirements for fire alarm systems to ensure the safety of buildings and occupants in case of a fire. This document is widely recognized and used by fire protection professionals and authorities having jurisdiction to enforce fire safety regulations.

The BNC cable connector has to be pushed on hard to stay connected to the cable. This type of connector is commonly used in video and audio applications, and it requires a firm push and twist to ensure a secure connection. The BNC connector is known for its high reliability and ability to withstand vibrations, making it suitable for use in professional and industrial settings.

The correct answer is "Before all drywall is put up." This is because running wires for security sensors and smoke detectors requires access to the walls and ceilings, which is easier before the drywall is installed. Once the drywall is in place, it becomes more difficult and time-consuming to run the wires, as it may require cutting into the drywall or removing sections of it. Therefore, it is best to run the wires for these devices before the drywall is put up during the construction process.

A punch down tool is used to properly terminate Cat5E wiring into its jacket. This tool is specifically designed to insert and secure the individual wires of the Cat5E cable into the corresponding slots on a patch panel or keystone jack. It ensures that the wires are securely connected and provides a clean and professional termination.

NFPA 70 is commonly known as the National Electric Code. This code provides guidelines and standards for electrical installations in order to ensure safety and prevent electrical hazards. It covers various aspects such as wiring, grounding, equipment installation, and maintenance. It is widely adopted and enforced by regulatory authorities, electricians, and professionals in the electrical industry to promote the safe use of electricity in buildings and structures.

The correct wiring configuration on a household fire alarm system initiating circuit is series with EOL supervision. This means that the devices in the circuit are connected in a series, meaning that the current flows through each device in the circuit. Additionally, the circuit is supervised with an EOL (End of Line) resistor, which ensures that the circuit is properly monitored and any faults or breaks in the circuit can be detected. This configuration is important for ensuring that the fire alarm system operates effectively and any issues can be quickly identified.

According to NFPA 70, direct buried cables must be arranged in a way that prevents damage when the ground settles. This is important because when the ground settles, it can cause the cables to shift or become damaged, leading to potential electrical hazards or interruptions in service. By arranging the cables properly, such as using proper supports or allowing for flexibility, the risk of damage due to ground settling can be minimized, ensuring safe and reliable operation of the cables.

Impedance refers to the total opposition to the flow of electrical energy through a circuit. It includes both resistance and reactance, which are caused by elements like resistors, capacitors, and inductors. Voltage, interference, and current are all related to electrical circuits, but they do not specifically represent the total opposition to the flow of electrical energy. Therefore, the correct answer is impedance.

Reflective metallic wallpaper can greatly affect a PIR motion detector because it reflects infrared radiation. PIR motion detectors work by detecting changes in infrared energy, and the reflective surface of metallic wallpaper can cause false readings or interfere with the detector's ability to accurately detect motion. This interference can lead to false alarms or missed detections, making reflective metallic wallpaper a significant factor that affects the performance of a PIR motion detector.

According to NFPA 72, smoke detectors in one- and two-family dwellings must be replaced every ten years. This is because smoke detectors have a limited lifespan and may become less effective over time. Replacing them every ten years ensures that they are functioning properly and can effectively detect smoke in case of a fire. Regular replacement also helps to ensure the safety of the occupants in the dwelling.

A technician is only allowed to perform work within the alarm industry area(s) for which he is licensed. This means that the technician can only work on alarms within the specific area(s) that he has obtained a license for. He is not permitted to work in any other alarm industry areas, even if he is supervised by a licensed technician in that area. It is important for technicians to have the appropriate license for the specific area they are working in to ensure they have the necessary knowledge and skills to perform their job effectively and safely.

VoIP (Voice over Internet Protocol) is the technology used by modern digital communicators to communicate with the monitoring station. It allows voice communication to be transmitted over the internet rather than traditional telephone lines. This technology converts voice signals into digital data packets and sends them over an IP network. VoIP offers advantages such as cost-effectiveness, flexibility, and scalability, making it a popular choice for modern digital communication systems.

Calling emergency services (911) is essential to ensure prompt medical assistance for the unconscious coworker. This action prioritizes the coworker's health and safety by initiating the appropriate emergency response protocol.

Fire protective signaling circuits require a certain minimum wire size to ensure reliable transmission of signals. The National Fire Protection Association (NFPA) specifies that single conductors used on these circuits must be at least 18 AWG. This wire size is chosen because it provides sufficient current carrying capacity and helps to minimize voltage drop over long distances. Using a smaller wire size could result in inadequate signal transmission and compromise the effectiveness of the fire protective signaling system.

According to NFPA 72, smoke detectors should not be installed if the ambient temperature exceeds 100 degrees F, unless they are specifically designed and listed for such high temperature conditions. This is because excessive heat can affect the performance and reliability of smoke detectors, leading to false alarms or failure to detect smoke and fire accurately. Therefore, it is important to adhere to these temperature guidelines to ensure the proper functioning of smoke detection systems.

Household fire alarm systems must transmit a test signal on a monthly basis. This regular testing ensures that the alarm system is functioning properly and can effectively detect and alert occupants in the event of a fire. Monthly testing allows for any potential issues or malfunctions to be identified and addressed promptly, ensuring the safety of the household.

Providing supervision to annunciate tampering means implementing a system that monitors the enclosures and devices for any signs of tampering or unauthorized access. This can be done using sensors, alarms, or surveillance systems that will alert the appropriate personnel if any tampering is detected. This alternative helps to ensure the security and integrity of the control units, sub-controls, and interconnecting devices even when they are located outside of the protected premises.

The given question asks for the preferred choice among the options provided. The correct answer is Option 1, but without any further context or information, it is impossible to determine the reason for this choice.

The additional power supplies provided for equipment essential to system operation located away from the main control must meet the same requirements as the main primary and secondary power supplies. This means that they should have the same capacity, voltage rating, and any other specifications required for the main power supplies. This ensures that the additional power supplies are capable of providing the necessary power to the equipment and maintaining the system's overall functionality.

Ground-fault circuit interrupters are included in electrical protective devices because they provide protection against ground faults, which occur when an electrical current travels through an unintended path, such as through a person or water. Ground-fault circuit interrupters monitor the flow of electricity and quickly shut off the circuit if a ground fault is detected, preventing electric shock and potential fires. This makes them an essential safety measure in areas where water is present, such as kitchens, bathrooms, and outdoor outlets.

The correct answer is 4 to 12. This range allows for flexibility in the placement of the smoke detector on the sidewall. It ensures that the detector is positioned at a sufficient distance from the ceiling to effectively detect smoke, while also allowing for variations in ceiling height and the specific requirements of the smoke detector model.

UL stands for Underwriters Laboratories, which is a global safety certification company that conducts tests and sets safety standards for various products and industries. UL does not specifically list all the monitoring stations, but it is known for its involvement in the certification and testing of fire alarm systems and equipment. Therefore, it is possible that UL may have a list or database of certified monitoring stations, making it the most relevant association among the given options.

The TIA/EIA recommends not exceeding 25 lbs. of pulling force when pulling cat 5 wire. This is because exceeding this limit can cause damage to the wire, leading to performance issues or even complete failure of the network connection. It is important to follow these recommendations to ensure the proper installation and functioning of the wiring system.

Upon conviction, an individual violating any provision of the Oklahoma Alarm and Locksmith Industry Act can be punished with a maximum fine of $500. This means that if someone is found guilty of breaking the rules and regulations outlined in this act, they may have to pay a fine of up to $500.

HSPA+ is a technology used in 4G cellular communication. HSPA+ stands for High-Speed Packet Access Plus and is an enhanced version of HSPA (High-Speed Packet Access) technology. It offers faster data transfer speeds and improved network capacity compared to previous 3G technologies. HSPA+ is commonly used in mobile networks to provide high-speed internet access and support various data-intensive applications such as video streaming, online gaming, and large file downloads.

Ohm's law is used to calculate the current draw of an audible device to ensure that it does not exceed the control panel's rated alarm output. Ohm's law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance. By using Ohm's law, one can calculate the appropriate resistance or voltage needed to limit the current draw and prevent it from exceeding the control panel's capacity.

According to NFPA (National Fire Protection Association) guidelines, house smoke alarm systems should be tested by a qualified technician on an annual basis. This ensures that the smoke alarms are functioning properly and can effectively detect smoke or fire in the event of an emergency. Regular testing helps to maintain the reliability and efficiency of the smoke alarm system, enhancing the safety of the occupants in the house.

When a circuit wire is shorted, it means that there is a direct connection between two points in the circuit that are not supposed to be connected. This can cause an overload of current and potentially damage the circuit or the devices connected to it. Therefore, it is important for a zone to show a trouble indication when a circuit wire is shorted so that the issue can be identified and resolved promptly to prevent further damage or malfunctioning of the system.

The correct answer is "Signaling". The UL mark is a safety certification mark provided by Underwriters Laboratories. It indicates that the product has been tested and meets the safety standards set by UL. In the context of fire and life safety alarms, the signaling UL mark would indicate that the alarms have been tested and approved for their signaling capabilities, ensuring that they can effectively alert individuals in case of emergencies.

According to NFPA 72, a household fire alarm system must have a battery backup that can sustain the system for 24 hours after utility power is disconnected. This means that even if the power goes out, the fire alarm system will continue to function and provide protection for an extended period of time.

A primary battery used in low power radio systems should provide a distinctive trouble signal. This is because in case of any issues or malfunctions in the device, it is important to have a clear and distinguishable signal to indicate the problem. This allows for easy identification and troubleshooting of the device, ensuring that any faults or troubles can be promptly addressed.

When a conflict arises between adopted references, the reference that applies is the one with the more stringent standard. This means that if there are multiple references that are adopted and they have conflicting requirements, the one with the stricter or more rigorous standard should be followed. This ensures that the highest level of safety and compliance is maintained in the given situation.

The coworker's symptoms of being pale, confused, sweating, and feeling shaky are indicative of low blood sugar, also known as hypoglycemia. When blood sugar levels drop too low, it can cause these symptoms and can be potentially dangerous if left untreated. It is important to provide the coworker with a source of sugar, such as fruit juice or candy, to quickly raise their blood sugar levels.

To ensure that a motion detector is receiving power from the control panel or power supply, the meter should be placed on the VDC (Volts Direct Current) setting. This setting measures the voltage of direct current, which is the type of electrical current typically used to power devices like motion detectors. By placing the meter on this setting, it allows for the measurement of the voltage being supplied to the motion detector, thus confirming if it is receiving power or not.

The electromotive force between two points in a circuit is not called "Current". Current refers to the flow of electric charge through a conductor. The correct answer is "Voltage". Voltage, also known as electric potential difference, is the measure of the electric potential energy per unit charge between two points in a circuit. It is responsible for driving the flow of current in a circuit.

A ground start malfunction is the likely cause for the alarm phone line going in fault several times a day. Ground start is a signaling method used in telephone systems to establish a connection. If there is a malfunction in the ground start signaling, it can cause disruptions in the phone line, leading to the frequent faults experienced.

Communication cables and wires must have a voltage rating that is not less than 300V in order to ensure safe and efficient transmission of electrical signals. Higher voltage ratings provide better insulation and protection against electrical interference, ensuring that the cables can handle the required voltage without any risk of damage or malfunction. Therefore, a voltage rating of 300V or higher is necessary to meet the demands of communication systems and maintain reliable signal transmission.

Conductors under a single terminal should be the same gauge and composition to ensure proper electrical conductivity and prevent any imbalance in the flow of electricity. This uniformity ensures that the conductors can handle the same amount of current without overheating or causing any damage. If conductors of different gauges or compositions are used, it can lead to unequal distribution of electrical load and potential safety hazards. Therefore, it is important to use conductors of the same gauge and composition in order to maintain electrical integrity and safety.

The correct answer is that an accepted way of alarm verification is used. This means that before the signals from the exterior space detection systems are dispatched as an alarm, they need to be verified through an accepted method. This ensures that false alarms are minimized and that the alarm is only triggered when there is a genuine threat or emergency. Verification methods can include visual confirmation, audio confirmation, or confirmation from authorized personnel. By using an accepted way of alarm verification, the system can provide reliable and accurate alarms.

NFPA 731 defines the levels of performance and reliability for electronic premises security systems. This standard provides guidelines and requirements for the design, installation, testing, and maintenance of these systems. It ensures that electronic premises security systems meet certain standards to effectively protect the premises from unauthorized access, theft, and other security threats.