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What is the primary function of air compressors?
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A-35
AIR COMPRESOR
| Question | Answer |
|---|---|
| What is the primary function of air compressors? | Increasing air pressure |
| How are air compressors important in vehicle repair | Inflating tires |
| In which industry are air compressors crucial for product development | Manufacturing |
| How do air compressors help in safe vehicle operation on public roads | Ensuring proper tire pressure |
| What is the role of air compressors in construction | Operating power tools |
| What type of permit is required for compressing atmospheric air in New York City | FDNY permit |
| Who is allowed to compress atmospheric air in New York City as per the 2022 edition of the Fire Code | Any individual supervised by a person holding a Certificate of Fitness |
| What kind of supervision is required for compressing atmospheric | Personal or general supervision |
| Which entity issues the Certificate of Fitness required for compressing atmospheric air in New York City | NYC Fire Department |
| In the context of air compressors in New York City, what does FDNY stand for | Fire Department of New York |
| When is a FDNY permit required for compressor use? | For compressing nonflammable, corrosive, or oxidizing gases to a pressure exceeding 100 psi |
| Who issues the FDNY permits for compressor use? | Bureau of Fire Prevention |
| What gases require a FDNY permit for compression? | Nonflammable, corrosive, or oxidizing gases exceeding 100 psi |
| In which scenario is a FDNY permit not needed for air compression? | Compressing air outdoors during a fair |
| What is the main purpose of an air compressor in this context? | Powering tools and machinery |
| What is the relationship between the volume of air forced into the container and the air pressure inside? | Direct relationship |
| Which type of air compressor is the most commonly used according to the passage? | Reciprocating compressor |
| What is the primary power source for air compressors mentioned in the passage? | Electric motors |
| Why is it important to raise the air compressor at least 5 feet above ground level in locations with flammable gases? | To prevent ignition of the gases |
| What is the potential consequence if flammable gases are ignited inside the air compressor? | Explosion |
| How are flammable gases usually ignited in the context of the passage? | Sparks and high temperatures |
| Which location is mentioned as having a possible build up of flammable gases? | Service stations and workshops |
| Which of the following is NOT mentioned as a type of air compressor in the passage? | Diaphragm compressor |
| What is one example of a tool powered by compressed air according to the context? | Pneumatic wrench |
| How is the entire unit of an air compressor driven? | By an electric motor |
| What is the purpose of the drive belts on an air compressor? | To power the moving parts |
| In an air compressor, what happens when the piston moves downward in the compression chamber? | The intake valve opens |
| What is the purpose of the discharge valve in an air compressor? | To release the compressed air into the air receiver |
| What is an air receiver in the context of an air compressor? | A container to store compressed air |
| How is an air compressor with multiple pistons and cylinders different from a single-stage air compressor? | It increases the pressure of the air in stages |
| Why is an intercooler installed between the stages of a multi-stage air compressor? | To cool the air as it travels between compression stages |
| What happens to the pressurized air in a multi-stage air compressor once it reaches the last cylinder? | To supply tools or machinery |
| What term is sometimes used interchangeably with "air receiver" in the context of an air compressor? | Air tank |
| What is the purpose of using storage containers in a system where compressed air is forced from the air receiver? | To prevent leaks |
| In a system with several connected air compressors, how does the air flow through the compressors? | The air is drawn into the first compressor and then forced into the second compressor |
| What happens to the air pressure each time it passes through a compressor in the system with multiple connected compressors? | The air pressure increases |
| When is the system with multiple connected compressors typically used? | When there is a need for air under very high pressure |
| Why is it important for the compressed air to be forced into storage containers in some systems? | To increase the lifespan of the storage containers |
| Why is a check valve necessary in an air compressor system? | To prevent air from escaping when the unloading valve activates |
| What is the function of a pressure gauge in an air compressor? | To indicate the pressure inside the air receiver |
| Why are pressure relief valves installed in an air compressor system? | To allow air to escape when the pressure is too great |
| What is the purpose of an air intake valve in an air compressor? | To prevent dust from entering the compression cylinder |
| Why is a filter and moisture separator assembly (FMSA) necessary in an air compressor system? | To remove moisture and dust from the compressed air before it enters the air receiver |
| What is the function of an automatic control device in an air compressor? | To control the starting and stopping of the compressor |
| When is a constant speed control switch used in an air compressor system? | When there is a steady or constant demand for compressed air |
| Why is a cooling system necessary in an air compressor? | To cool the compression chamber and the compressed air |
| What is the function of a low oil level indicator switch in an air compressor? | automatically shut down the compressor if the oil level is low |
| What precaution should be taken before starting the air compressor? | Visually inspect the entire system by the Certificate of Fitness holder |
| Why should the Certificate of Fitness holder remain in the area for a few minutes after the air compressor has been started? | To make sure the compression unit is operating safely |
| Why is it important to wear safety glasses when operating an air compressor? | To protect the eyes from dust or debris blown off by the compressor |
| When should the compressor be turned off to make repairs? | Before making repairs and the electrical supply to the machine should be shutdown |
| What should a Certificate of Fitness holder pay close attention to in terms of leaks in the air compressor? | Compressor tubing and fittings |
| Which materials should never be used to clean an air compressor and its storage tanks? | Benzene and kerosene |
| What is the recommended interval for hydrostatic testing of an air receiver tank? | Once every 5 years |
| Who is allowed to make major repairs on an air compressor? | Qualified repair technicians |
| How often should the cooling system be tested? | every 6 months |
| How often should the air intake filter be replaced? | twice a year |
| How often should the lubrication oil be checked using the dipstick? | weekly ✔ |
| When should the air compressor be refilled with oil if the automatic low-level oil indicator switch is found to be defective? | after 3 days |
| How often should the air receiver tank be pressure tested by a qualified technician? | every 5 years |
| How often should the automatic low-level oil indicator switch be tested? | every 3 months |
| When should the air compressor NOT be drained of moisture from the air receiver? | when the ambient temperature drops below 40 degrees Fahrenheit |
| What is the purpose of the automatic low-level oil indicator switch? | to shut down the air compressor if oil levels are low |
| How often should the lube oil be replaced? | every 6 months |
| How should a leaking air hose in an air compressor system be repaired according to the given text? | Repair by cutting out the bad section and joining with a connector and clamps |
| What should the Certificate of Fitness holder do if the belts in an air compressor are frayed or damaged? | Replace the belts if needed |
| How can one determine if the belt tension in an air compressor is correct based on the text? | Firmly press down on the belt and if it moves more than an inch, adjust the flywheel |
| What is the purpose of the motor starter in an air compressor system according to the text? | Protect the compressor against thermal overload |
| Why is it important for the pressure switch to work correctly in an air compressor system? | Prevent dangerously high pressure levels inside the tank |
| What does the pressure switch do in an air compressor system as described in the text? | Shut down the compressor when pressure reaches a preset level and restart when pressure falls below a certain level |
| When should the pressure switch in an air compressor system shut down the compressor? | When pressure reaches a preset level inside the air receiver |
| What potential danger is associated with allowing air pressure inside the tank of an air compressor to reach dangerously high levels? | Possibility of the tank rupturing or exploding |
| Who is responsible for ensuring the safety valves and gauges in an air compressor are regularly checked? | Certificate of Fitness holder |
| What should be done when the pressure gauge indicates that the pressure is above normal operating levels? | Adjust the pressure relief valve |
| What is the function of the pressure relief valve in an air compressor system? | Act as a backup safety device to the pressure switch |
| How is the pressure relief valve tested? | By running the compressor with the pressure switch fully open |
| What happens if the pressure relief valve does not open during testing? | The compressor cannot be restarted |
| What should be done if the pressure relief valve opens before the receiver reaches normal operating pressure? | Replace the relief valve |
| Why is it essential for the pressure relief valve to be set within specific pressure ranges? | To prevent dangerous pressure build-up |
| What is the purpose of the pressure relief valve in relation to the pressure switch? | To act as a backup safety device |
| What should the Certificate of Fitness holder do if the pressure relief valve is defective? | Replace the relief valve before restarting the compressor |
| How does operating an air compressor within normal temperature ranges reduce the risk of overheating? | By reducing the likelihood of the compressor overheating |
| What action should be taken if an overheating problem is discovered in the air compressor? | Check the water cooling mechanisms |
| What is the main purpose of Lockout/Tagout procedures? | To ensure machines are shut off during maintenance and servicing work |
| What is the significance of "isolating and rendering inoperative" power sources in Lockout/Tagout procedures? | To prevent machines from starting up unintentionally |
| What does the "Lock and Tag" part of the Lockout/Tagout procedure involve? | Locking the device or power source with a hasp and placing it in a position where hazardous power sources cannot be turned on |
| According to the OSHA standard for Lockout/Tagout, what is the purpose of disabling machinery or equipment during maintenance activities? | To prevent the release of hazardous energy while employees perform servicing and maintenance activities |
| How many fatalities are estimated to be prevented each year by compliance with the lockout/tagout standard? | 120 |
| Who are among the workers who service equipment and face the greatest risk in industrial environments? | Machine operators, craft workers, and laborers |
| How many workdays do workers injured on the job from exposure to hazardous energy lose on average . | 24 days |
| What is the role of the Certificate of Fitness holder regarding the lockout/tagout standard? | To understand how the regulation applies to the work environment |
| What is the estimated number of injuries prevented by compliance with the lockout/tagout standard each year? | 50,000 |
| What happens during the "Lock and Tag" step of the Lockout/Tagout procedure? | The power source is locked with a hasp and no hazardous power sources can be turned on ✔ |
| What types of devices commonly use lithium-ion batteries? | Electric bikes, scooters, cars, laptops, tablets, phones, and many other common household devices |
| Why is it important to follow rules for safe storage, charging, and disposal of lithium-ion batteries? | To prevent fires and injuries |
| Which organization provides important safety tips for lithium-ion powered devices? | FDNY |
| Why should individuals consider safety measures when handling lithium-ion powered devices? | To prevent property damage and injuries |
| What type of batteries have caused deaths, serious injuries, and property damage around the city according to the text? | Lithium-ion batteries |
| Besides phones and tablets, what other devices are mentioned as powered by lithium-ion batteries? | E-cigarettes, toys, high-tech luggage, and robotic vacuum cleaners |
| In which section of the text do we find the emphasis on following safety tips for lithium-ion batteries? | Safety Tips Section |
| Which organization's safety tips apply to all devices powered by lithium-ion batteries according to the context? | FDNY |
| What is the reason for emphasizing safe storage, charging, and disposal of lithium-ion batteries in the text? | To prevent fires, injuries, and property damage |
| What is recommended for charging a device as per the given information? | Plug directly into a wall electrical outlet for charging |
| According to the information provided, where should batteries and devices be stored or charged? | At room temperature |
| Which organization should certify the devices for safe use according to the provided instructions? | Nationally Recognized Testing Laboratory (NRTL) |
| What is recommended to keep the exit path clear for safety as per the guidelines? | Keep the exit path clutter-free |
| Where should batteries be taken for recycling according to the information provided? | A NYC Battery Recycling Center |
| According to the guidelines, what should be done with batteries and devices to prevent potential hazards? | Keep them away from anything flammable |
| How should devices be connected for charging based on the provided information? | Directly into a wall electrical outlet for charging |
| Which of the following is NOT recommended for correct battery, cord, and power adapter according to the instructions? | Using the appropriate power adapter |
| Where can more information about proper battery disposal be found according to the given details? | nyc.gov/batteryrecycling |
| What is advised regarding the storage and/or charging of batteries away from anything flammable? | Keep batteries away from anything flammable |
| What is one of the dangers mentioned about using aftermarket batteries or chargers? | They may pose a risk to the device or user |
| According to the context, why is it advised not to use damaged or altered batteries? | They can pose a safety risk |
| What is the recommended action in relation to plugging electronic devices into a power strip or overloading an outlet? | It is advisable to avoid it as it can pose a safety risk |
| Why is it cautioned against overcharging or leaving a battery charging overnight? | It poses a risk of damaging the battery or device |
| According to the information provided, why should you not charge a battery or device under your pillow, on your bed, or near a couch? | ) It may lead to overheating or fire hazards |
| What is the recommended action regarding leaving e-bikes or e-scooters unattended while charging? | It can pose a safety risk |
| Why is it cautioned against blocking your primary way in or out of a room/space with e-bikes, e-scooters, wheelchairs, etc.? | It poses a potential safety hazard |
| What is emphasized about the disposal of batteries in the context? | It is advised to dispose of batteries at designated locations |
| Where can one find information about proper battery disposal, according to the provided text? | By visiting nyc.gov/batteries |
| What is mentioned about the legality of placing batteries in the Trash or Recycling bin? | It is highlighted as illegal and not recommended |
| What is the most suitable method for charging lithium-ion batteries according to the context provided? | Partial charge them |
| How many personal mobility devices or their removable batteries must be present to require the charging to be done in a dedicated room with certain specifications? | More than 5 |
| For a total battery capacity of 20 kWh, what separation distance between charging batteries is required? | 2 feet |
| When can a 3-foot separation between charging batteries be needed according to the context provided? | For a total battery capacity of 50 kWh |
| How should chargers be used with lithium-ion batteries according to the context? | Use only compatible chargers with the battery pack |
| What interplays with the battery pack using the battery management system (BMS) according to the provided information? | The OEM charger |
| What may not work safely if the wrong battery/charger combination is used according to the context? | 100% cutoff to prevent overcharging |
| What can happen if the 100% cutoff to prevent overcharging does not work, as mentioned in the context? | Hazardous conditions such as fires, explosions, and/or injuries |
| Why is it important to use a compatible charger with lithium-ion batteries based on the provided information | To prevent accidents such as fires and explosions |
| How can using the wrong battery/charger combination potentially lead to hazardous conditions according to the context? | By creating fires, explosions, and injuries |
| What is the recommended action to take in order to ensure safety when replacing parts for a personal mobility device? | Reach out to the manufacturer or retailer |
| Who can provide recommendations for safe replacements and repairs of personal mobility devices? | Underwriters Laboratories (UL) |
| What potential risks are associated with using unauthorized parts for personal mobility devices? | Damage to the device |
| Which organization might be able to confirm if a replacement part is safe for use with a personal mobility device? | Underwriters Laboratories (UL) |
| Why is it important to check with authorized sources before replacing parts in a personal mobility device? | To maintain the warranty coverage |
| Why do fire extinguishers not work on lithium-ion battery fires? | They are not compatible with lithium-ion batteries |
| What is a common characteristic of lithium-ion batteries in terms of re-ignition? | They unexpectedly re-ignite minutes, hours, or even days after visible fire has been put out |
| Why can lithium-ion batteries enter an uncontrollable, self-heating state? | Due to their composition |
| According to NFPA, how far should the travel distance be from any point to the nearest fire extinguisher? | 30 feet |
| How are fire extinguishers categorized according to NFPA standards? | By compatibility with fuel and hazard of energized electrical equipment |
| What should a Certificate of Fitness holder be familiar with regarding fire extinguishers? | How to use portable fire extinguishers |
| What does the acronym P.A.S.S. stand for in relation to using a fire extinguisher? | Pull, Aim, Squeeze, Sweep |
| What is the purpose of the FDNY standard PFE tag? | To affix important information about the extinguisher |
| By when must all portable fire extinguishers have the new PFE tags according to the information provided? | November 15, 2019 |
| How can one verify the legitimacy of the PFE tag through a hologram? | By identifying a high-quality silver hologram on the tag |
| What happens if a PFE tag cannot be verified via the recommended methods? | Call Tags.Decal@fdny.nyc.gov |
| What is one method recommended by the FDNY to verify the legitimacy of the PFE tag? | Scan a QR code |
| Who is responsible for selecting a person to perform the monthly inspection of portable fire extinguishers? | The owner of the business |
| What is the purpose of the monthly "quick check" for portable fire extinguishers? | To ensure the extinguisher is fully charged and in its designated place |
| When must all portable fire extinguishers be checked ? | At least annually |
| Who is required to replace the PFE tag after the annual inspection of portable fire extinguishers? | The Certificate of Fitness holder |
| What action should the Certificate of Fitness holder take in case of a fire, explosion, or major spill? | Notify the Fire Department by calling 911 |
| What is the role of the Certificate of Fitness holder in initiating an orderly evacuation after a hazardous incident? | Isolate the hazard until the Fire Department arrives |
| When must the Bureau of Fire Prevention be notified after an explosion or fire has occurred? | Within 10 days |
| What information must the Certificate of Fitness holder provide to Firefighters and officers upon their arrival? | The location of the fire, description of fire protection devices, and materials stored on the fire floor |
| How should the Certificate of Fitness holder notify the Fire Department in case of a fire, explosion, or emergency? | Call 911 |
| What action should the person supervising air compressors take if an unsafe condition has been created? | Notify the site safety manager |
Created by:
jigger