OCFA Self-Contained Breathing Apparatus (SCBA) Practice Exam

These questions are part of the practice quiz. Start practicing

• What maintenance action should be performed after SCBA use?
• What is the hydrocarbon content limit in the breathable air?
• What is the role of the fixed or integrated gauge in the SCBA?
• What is the oxygen content range of the air supplied by the SCBA?
• Where is the Emergency Breathing Support System (EBSS) located on the wearer?
• How should you address lens fogging on the facepiece?
• What does the circular battery light on the HUD do?
• What indicates a breach in the facepiece during a seal check?
• After connecting a new cylinder and slowly opening the valve, what should you verify before resuming work?
• What is the recommended frequency for PASS device testing and battery changes according to OCFA SOP?
• At 10-12% oxygen, which symptoms are listed?
• Which component is considered the weakest link in the PPE?
• Which action demonstrates proper air management when entering a hazardous area without an electronic monitor?
• What should you do if the SCBA fails the pre-use inspection?
• What face-piece does OCFA use?
• In the context of breathing techniques, which method is identified as the correct technique?
• What distinguishes open-circuit SCBA from closed-circuit SCBA?
• Which PPE is mandatory when operating in an environment requiring SCBA?
• Which of the following are listed as by-products of fire?
• Which safety step helps you stay within the SCBA's operational limits?
• What does the purge valve do?
• How do you estimate remaining air time in the absence of an electronic monitor?
• What are the recommended steps for decontamination of SCBA after exposure to hazardous materials?
• How should you plan to transition from a structural to outside air environment?
• What is the purpose of a pre-entry size-up of equipment and atmosphere?
• Which cylinder type is used in this SCBA?
• Which disinfection method is specified for SCBA cleaning?
• When do you inspect SCBA?
• The back frame construction uses which material for the main, one-piece frame?
• The NFPA standard governing open-circuit SCBA for emergency services is which of the following?
• At approximately what temperature does the face piece soften?
• The Emergency Breathing Support System (EBSS) will draw air from which cylinder first?
• What is the purpose of the regulator purge as part of daily checks?
• What constitutes a safe air-management approach when entering an IDLH environment?
• During a backup air transition, which documentation action is recommended?
• What action should you take if the cylinder gauge shows low pressure at the start of your shift?
• How often are SCBA cylinders hydrostatically tested?
• If the SCBA gauge shows near-zero pressure during a mission, what should you do?
• How often are SCBA cylinders hydrostatically tested?
• What does EOS/EOSTI indicate, and how should you respond when it activates?
• Which feature on SCBA gear is designed to alert teammates if a firefighter stops moving or is incapacitated?
• The SCBA valve is manufactured by which company?
• What is the minimum cylinder pressure required for the morning checkout, in PSI?
• What are the PASS operation time and the full alarm time?
• Regarding the nipple O-Ring Seal on the High Pressure Coupling, which statement is correct?
• Which statement accurately describes the difference between a one-stage regulator and a two-stage regulator in SCBA?
• What is the correct action if a leak is detected during a leak check?
• Outline the recommended procedure for changing an SCBA cylinder in the field.
• Which statement about High Pressure Coupling tightening is correct?
• Why is maintaining an air-management mindset critical when using SCBA during operations?
• What does a single chirp every 2 seconds indicate on the PASS unit's low battery indicators?
• If air supply is partially or completely cut off during use, what is the first action?
• What should you do if you notice a regulator whine or abnormal airflow during use?
• If fogging occurs on the facepiece during pre-use checks, what is the appropriate course of action?
• In the same situation, what is the second action?
• Which of the following is a major component of an OCFA SCBA?
• Which documentation item should be included in post-use SCBA records?
• Define PASS and describe its primary safety role on the fireground.
• Which statement about open-circuit SCBA is accurate?
• Which steps help reduce fogging inside the facepiece during use?
• The PASS device includes which feature?
• Which component signals dwindling air supply?
• In an out-of-air situation with a partner, which action should be taken first?
• Between hard labor and mild labor, which has the longer breathing time?
• Which standard number is associated with PASS?
• What percentage of a full cylinder is considered the minimum for checkout?
• Which of the following is a typical hazard associated with SCBA usage in hazardous environments?
• Which oxygen level is associated with coma in 40 seconds, followed by death?
• Low-air alarm purpose and when should you begin to prepare for exit?
• How do you check the integrity of the regulator hoses?
• How is a bubble test performed to check for leaks on the facepiece or connections?
• What is the purpose of the purge button on an SCBA and when should you use it?
• Which of the following is a feature of the UAC?
• If a curved facepiece strap becomes loose during use, what is the recommended action?
• How should you read and interpret the SCBA cylinder pressure gauge?
• What steps should you take if you detect a leak in the SCBA during use?
• Which component includes the band that secures the cylinder to the wearer?
• What does the 'service life' label on an SCBA cylinder indicate?
• What should you do with the cylinder valve when storing SCBA to prevent accidental release?
• What is the rating of the frangible burst disc in the valve?
• During an out-of-air situation with a partner, who should connect to the EBSS?
• If a seal check shows abnormal distortion of the facepiece, what is the appropriate action?
• Which safety device may be present on an SCBA to aid in location and rescue?
• What should you do if you notice damage to the facepiece lens?
• When replacing a cylinder, what safety steps must be taken?
• What is the purpose of the cylinder valve on an SCBA?
• What action is recommended if you encounter a hot zone or near a flashover area while wearing SCBA?
• What is the general operating pressure range for the Low Pressure Line?
• Which practice helps reduce fogging inside the facepiece?
• If you notice damage to the regulator hoses during inspection, what should you do?
• Breathing time for mild labor is which of the following?
• How does altitude influence SCBA performance?
• What is bailout air and when might it be used (if equipped)?
• What is the role of the high-pressure cylinder valve and where is it located on the SCBA?
• List the key items to inspect during a pre-use SCBA check.
• During a critical operation, you must switch to a backup air source. Which action should you perform as the immediate priority?
• Positive internal pressure effect in the face piece?
• The Luxfer cylinder inner shell is made from which material?
• Where is the Heads-Up Display located when the regulator is clipped in?
• Which item is the Nose Cup?
• When does the Vibralert alarm activate?
• How many components are listed under Face Piece Components?
• Distinguish between 'supply air' and 'bailout air' in the context of SCBA.
• How is PASS device battery status monitored and what steps are taken if the battery is low?
• What should be documented in OCFA SCBA maintenance records after an inspection?
• What is the purpose of the backplate and harness in an open-circuit SCBA?
• What is the purpose and key steps of an air-management plan during a structural fire?
• Explain the proper donning sequence for an SCBA.
• After replacing a component, what is the correct next step in the maintenance process?
• Which step is part of pre-use checks that involves purging the regulator and verifying air flow?
• At 8-10% O2, which physiologic effect occurs?
• What steps constitute a post-use SCBA inspection and documentation?
• What strap is pulled last when putting on a face piece?
• Which of the following is a major component of a typical open-circuit SCBA?
• Which two types of tests are typically performed to ensure SCBA function before use?
• NFPA standard for Personal Alert Safety System (PASS)
• What is the purpose of quick-connect or quick-release fittings on an SCBA?
• Which is a common SCBA malfunction and its simple field remedy?
• What is the correct sequence of actions when a curved facepiece strap is loose during use?
• Voice Amp batteries
• During a buddy check, what should you verify about the partner's mask seal?
• What determines whether an SCBA is suitable for a particular hazard (gas, vapor, etc.)?
• NFPA 1981 applies to which type of SCBA?
• If the low-air alarm activates while inside a structure, what is the recommended action?
• How should an SCBA be cleaned after use in a dirty or dusty environment?
• During pre-use inspection, what PASS-related item should be checked?
• During the morning checkout, what should be true about the facepiece?
• How should you respond to an out-of-air alarm and what actions should you take?
• What should a proper buddy check include for SCBA readiness?
• The OCFA bottle duration is which value?
• What protects the cylinder gauge in the valve assembly?
• What is the purpose of the EOS indicator and how should you respond when it activates?
• Which acronym represents the four conditions in which an SCBA should be used?
• How do you perform a mask-to-face seal check and what indicates a proper seal?
• During the morning checkout, which item verifies the condition of the cylinder valves?
• A bailout cylinder, if installed, is intended for use by whom?
• What is the working pressure of the SCBA?
• What checks should be performed on the PASS device prior to use?
• How is the air duration of a given SCBA cylinder estimated and what factors affect it?
• Which organization standard governs open-circuit SCBA equipment used by firefighters?
• How should you purge the regulator before entering IDLH?
• What is the maximum allowed carbon monoxide content in the air?
• When storing an SCBA after use, what orientation and environmental conditions are recommended?
• What is a key pre-use check for the facepiece and harness?
• What is the service life of an SCBA cylinder?
• Which option accurately describes a complete pre-use facepiece seal integrity verification?
• Which statement best describes the scope of the morning daily SCBA checkout?
• Describe the function of the regulator in an open-circuit SCBA.
• How often are SCBA cylinders hydrostatically tested and what is the purpose of these tests?
• Where should you doff your SCBA after exiting to outside air?
• What is the purpose of a Personal Alert Safety System (PASS) on SCBA gear?
• Which component stores compressed air?
• Which action is NOT recommended when cleaning after exposure to a dirty environment?
• Breathing time for hard labor is which of the following?
• Proper cylinder orientation during donning and use primarily prevents which issue?
• Which post-use steps should be performed on SCBA equipment after a call?
• Which factor most directly influences SCBA air consumption rate?
• If exterior damage is found on the SCBA after use, what should you do?
• Which of the following is a breathing time factor?
• Describe the proper donning sequence for a firefighter donning an SCBA with a hood.
• Which devices are used to monitor environmental hazards during SCBA operations?
• How do you verify a proper facepiece seal after donning?
• Which cleaning method is specified for the SCBA?
• What does IDLH stand for?
• What is the power source for the voice amplifier?
• What is the first action in the field cylinder change procedure?
• Which factor is NOT listed as influencing SCBA air consumption?
• What is a "+buddy check+" and why is it important?
• After replacing the PASS battery, what should you do?
• What two items should be tracked to ensure traceability in SCBA maintenance records?
• What is a typical post-use decontamination procedure for SCBA cylinders used in a contaminated environment?
• What cylinder-related data should be checked before use (labels, hydro date, serial, etc.)?
• What are the typical pressure ranges for the Primary Stage and Second Stage, respectively, in the Dual Stage Pressure Reducer?
• Before donning, which cylinder label information should be confirmed?
• What maintenance actions are typically performed after use in a contaminated environment?
• Structural firefighting uses which type of SCBA design?
• What is the pressure inside the face piece?
• What type of connections does the EBSS line use?
• Why is the buddy system important during SCBA operations?
• Which items should be included in a post-incident SCBA inspection?
• The PASS automatically engages when which condition is met?
• What regulatory or standard must OCFA SCBA training align with?
• Which devices provide direct monitoring of environmental hazards during SCBA operations?
• What NFPA standard governs open-circuit SCBA equipment used by firefighters?
• What is the relief valve setting built into the UAC?
• How should you adjust the facepiece head straps for a proper seal?
• What are common indicators of a facepiece seal problem?
• Why is it important to maintain backplate/harness alignment?
• What is the purpose of the purge valve on the facepiece?
• Which statement about harness construction is true?
• Which of the following is NOT a breathing time factor?
• During the morning daily SCBA checkout, which item is verified to ensure proper regulator function?
• How can a firefighter maintain situational awareness and safety in near-zero visibility when using SCBA?
• The UAC stands for which of the following?
• What mode is the SCBA in when it is on but not clipped in?
• How should you communicate with team members about air status?
• Which action supports maintenance traceability most directly?
• Which NFPA standards govern SCBA and PASS devices used by firefighters?
• Which action should be taken if the cylinder valve and band show signs of excessive wear during inspection?
• What is the function of the regulator in an SCBA?
• Voice amp talk time
• List common indicators of an improper mask seal during a seal check?
• And what is the third action in that protocol?
• How should you interpret and act on the cylinder pressure gauge during a shift to ensure safe exit?
• The PASS is powered by how many AA batteries?
• What are best practices for storing SCBA when not in use?
• What are the pre-alarm and full alarm timings for PASS activation?
• What is the typical function of the SCBA low-air alarm?
• How many exhalation ports are integrated into the MMR?
• What is the physiologic effect when the oxygen level is 15-19%?
• In a pre-use inspection, which cylinder item is checked for service life?
• What is the purpose of the Personal Alert Safety System (PASS) during SCBA use?
• Which component on the Mask Mounted Regulator (MMR) is used to purge air from the system?
• How do you perform a leak check on SCBA connections and hoses?
• During the morning daily SCBA checkout, the remote gauge must read within what percentage of the cylinder gauge?
• The Low Pressure Line includes a feature to connect to the HUD. Which feature is it?
• How do you engage an emergency air/bailout feature on an SCBA and when is it necessary?
• What is the recommended approach to avoid staying inside the air supply during a hot zone?
• What is the purpose of wearing hearing protection when using SCBA in a noisy environment?
• Outline the basic bailout procedure if you run out of air in an IDLH environment (assuming bailout equipment is available).
• Which device is designed to help locate a wearer in distress by emitting an audible alarm?
• Which standard is NOT primarily applied to SCBA use in fire departments?
• Which non-verbal method is recommended to communicate air status with teammates?
• When does the second stage of the Dual Stage Pressure Reducer engage?
• When should you begin air management planning before entering a hazardous area?
• PASS stands for which term?
• Which of the following is a listed talk time?
• Which feature is NOT located in the Sensor Module?
• How should an SCBA be stored when not in use?
• If there is a sudden blockage of air flow or complete loss of system air supply, what should you do?
• Pressure delivered by the face-mounted regulator
• After decontamination, what is required before returning an SCBA to service?
• Which statement about the High Pressure Coupling is true?
• Which training standards apply to OCFA SCBA use?
• During hydrostatic testing, cylinders are pressurized to what multiple of the working pressure?
• On the Heads-Up Display (HUD), which indicator corresponds to 50-75% cylinder remaining?
• If a leak is detected during a bubble test, what is the correct field remedy?