Bioenvironmental Engineering (BEE) Block 4 Practice Test

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• What is a disadvantage of SCBA?
• Which guides are used for design parameters and reference for local exhaust ventilation?
• Where should emergency respirator storage be kept?
• Which respirator uses a battery-powered blower to push filtered air to a hood and typically does not require a fit test?
• What is the recommended frequency for cleaning respirators?
• AFI 48-137 outlines which type of program?
• General or dilution ventilation is intended to do what?
• Which instrument checks static pressure and indicates if the system is working correctly?
• Which of the following is NOT an Administrative control?
• What is a responsibility of BEE for the respirator program?
• Face Velocity is defined as
• PPE is considered what in the hazard-control hierarchy?
• The Face Velocity Method is used to measure what, and under which survey conditions?
• Which type uses negative pressure created by breathing and requires a good seal?
• Smoke Tubes are used to visualize what?
• What is the primary purpose of a baseline survey for ventilation systems?
• Dilution ventilation is not effective for surges of contaminants.
• At what threshold should air and oxygen cylinders be recharged?
• Which term describes interposing a barrier between a hazard and the people?
• Which description correctly defines an atmosphere-supplying respirator?
• In the USAF, which of the following is a source of respiratory protection guidance?
• What is the primary purpose of wearing respirators in the workplace?
• Minimization is the practice of what?
• Which term describes the path that air follows from the ambient environment into the hood opening?
• Which category of hazard control is favored over administrative controls and PPE because it removes the hazard before it can contact the worker?
• Which item is not typically included in OSHA substance-specific standards?
• Which of the following is a responsibility of the Workplace Supervisor for respirators?
• Which term represents the kinetic energy in moving air?
• Which cartridge type integrates both gas/vapor filtration and particulate filtration?
• In voluntary respiratory protection, which statement is true?
• What records must be established and maintained?
• Capture Velocity refers to
• Which factor ensures the air used for dilution is not contaminated?
• Static Pressure (SP) is best described as
• For Air-Purifying Respirators, which is NOT a listed requirement?
• Vent issue: Clogged duct work is best described as?
• Which activity determines when respiratory protection is required?
• What is the breathing zone?
• Which component disperses the cleaned air into the outside environment?
• Which statement best describes regulated area requirements?
• How many levels of particulate filter efficiency are typically indicated?
• Oil resistance designations R and P correspond to which statement?
• What losses are due to the interaction of air molecules with the sides of the duct?
• Which component is where the air is drawn into the hood?
• Immediately Dangerous to Life and Health (IDLH) conditions are defined as:
• What defines an oxygen-deficient atmosphere?
• How should rubber be stored to prevent distortion?
• Which of the following is a disadvantage of Airline Respirators?
• Who is primarily responsible for routine maintenance and troubleshooting in civil engineering?
• A key duty of the Workplace Supervisor for ventilation is to?
• When should emergency respirators be cleaned?
• Which of the following is designed to be used in oxygen-deficient environments by supplying air from a separate source?
• Which factor is a climate-related consideration for dilution ventilation?
• Local Exhaust Systems are designed to do which of the following?
• Change-Out Schedule is best described as:
• What is the primary purpose of local exhaust ventilation?
• What is a combination cartridge?
• Ventilation in the workplace is used to control the work environment by doing what?
• What component generates static pressure and moves the air?
• Where is an exterior hood located in a local exhaust ventilation system?
• Which formula applies to Volumetric Flow Rate Q?
• Which device is commonly known as a dust mask and is not recognized as a respirator for hazard control?
• Change-Out Schedule is defined as:
• What does PEL stand for in OSHA standards?
• Which respirator type covers the mouth and nose with a tight seal on the lower face and provides the lowest level of protection?
• Routine Survey - Which statement describes the purpose of a "Check" operation?
• What list indicates approved respirator equipment?
• Which designation indicates oil proof?
• Types of protective clothing include which items?
• Which term describes losses caused by changes to air movement and turbulence?
• In LEV program terminology, what is the Pre-Survey described as?
• What is the purpose of performing an operational check after cleaning?
• Which term describes air used alone with satisfactory results?
• Which control category is considered the last line of defense?
• What is the main function of the air-purifying element in a respirator?
• Which designation indicates resistance to oil?
• SCBA stands for?
• OSHA substance-specific standards include which element?
• Inhalation valves in a respirator perform which function?
• Breakthrough time is defined as ...
• Duct Area is defined as
• Dilution Ventilation introduces uncontaminated air for purpose of reducing airborne concentrations and controlling potential airborne health hazards.
• What is the purpose of the Baseline Survey in a local exhaust ventilation program?
• What does magnehelic gauge measure?
• Troubleshooting: How is the term best defined in the context provided?
• Which statement accurately describes the Baseline Survey?
• For Air-Purifying Respirators, which are the key requirements?
• Which statement best describes Local Exhaust Systems?
• Which statement best reflects a core duty of workers regarding ventilation?
• Which principle states that mass cannot be created or destroyed?
• Which of the following is an example of a control method listed in OSHA substance-specific standards?
• What device is responsible for scrubbing, separating, removing, or filtering the contaminant from the air?
• Which item is NOT listed as an exhalation/inhalation valve inspection concern?
• In a respiratory protection program, who is authorized to perform fit testing and manage RP in DOEHRS?
• Which qualification aligns with the RP Administrator role?
• Heat stress is defined as what?
• The Face Velocity Method: which statement is true regarding its use?
• Which designation indicates a filter is not resistant to oil?
• Who must approve the Shops RP program evaluation?
• Which option correctly identifies an Air-Purifying Respirator (APR)?
• When must a medical evaluation be performed to use a respirator?
• Which statement best defines a Regulated Area?
• Which device is suitable for use in IDLH environments?
• Isolation in hazard control means which of the following?
• Which component carries the contaminant to the air cleaner and then to the outside area?
• Which is NOT a general requirement for a Regulated Area?
• Common Vent Issues: Which item relates to the fan rotation direction being incorrect?
• Vent issue: Slipping fan belt is characterized by which description?
• Particulate filters do not protect against which hazards?
• OSHA's substance-specific standards specify which elements?
• Inclined Manometer: describes a manual instrument that uses red gauge oil. Which option is correct?
• Dilution ventilation cannot be used for high-toxicity contaminants.
• Chemical permeation is the process by which ...
• Pitot Traverse Method: obtained average velocity pressure by measuring at points in a number equal to what?
• Lower Explosive Limits (LEL) define:
• RE-SURVEY: After maintenance has been performed, what is its purpose?
• Which statement correctly describes the relationship between inhalation and exhalation valves?
• What does balometer measure?
• Which device is commonly known as a dust mask and is not recognized as a respirator for hazard control?
• Which statement correctly describes General or dilution ventilation?
• A balometer measures what?
• Manometer: used with a pitot tube to measure static pressure and velocity pressure inside a duct. Which instrument fits this description?
• An area with less than 19.5% oxygen is defined as:
• Total Pressure is the sum of which two components?
• Particulate filters should not be used in which condition?
• Which of the following is NOT a typical LEV component?
• Which instrument measures air velocity by the cooling effect over a heated rod?
• Total Pressure (TP) is defined as
• What is the purpose of the Initial Survey in a local exhaust ventilation program?
• What annual actions are required by BE for the program?
• In regulated areas, what must be done for workers exposed to a substance with a specific standard?
• Which component is responsible for removing contaminants from the air as it passes through the system?
• What is the term for the minimum concentration of a chemical that can be detected by smell?
• Which of the following is commonly used for LEV design parameter guidance?
• Which survey is typically conducted before operation to verify key parameters?
• What is the primary function of the facepiece in respiratory protection?
• When is a follow-up medical evaluation required?
• Which respirator type typically provides mobility and is designed for use for a limited time because its air supply is finite?
• How must filters be identified?
• Skin absorption refers to:
• Particulate filters are not suitable in which condition?
• Which items are typically included in Personal Protective Equipment?
• Particulate filters protect against which type of hazard?
• Warning Properties are defined as:
• How should respirators be protected against chemical agents during storage?
• Which statement best describes a disadvantage of local exhaust ventilation?
• Which item is NOT listed as an air-purifying element inspection concern?
• What is the correct sequence for cleaning a respirator?
• Which respirator type provides air from a clean area or compressed breathing air and is used in oxygen-deficient environments?
• Which regulation governs respiratory protection in occupational settings?
• Substitution in hazard control refers to which of the following?
• Which statement is a disadvantage of Air Purifying Respirators?
• Which statement is true about static pressure relative to a fan?
• Which scenario would trigger the use of respiratory protection?
• Which action is required of a respirator user?
• Which term refers to introducing uncontaminated air to reduce airborne concentrations?
• What losses are caused by changes to air movement and turbulence?
• Which respirator typically does not require a fit test because it uses a loose-fitting hood?
• Which respirator covers eyes, nose, and mouth and forms a seal around the entire face?
• Regulatory specification for respiratory protection usage states that it is:
• Which statement accurately describes the inspection frequency for respirators?
• Which action is a Workplace Supervisor responsible for regarding roaster changes?
• What is an Air Purifying Respirator (APR) advantage?
• Which respirator carries an air source on the back and is commonly used in emergencies?
• Transport Velocity is defined as
• In LEV terminology, which word best describes the Pre-Survey?
• What does an enclosing hood do in a local exhaust ventilation system?
• For Airline-supplied Respirators, which requirements apply?
• Natural Ventilation is air movement within a workplace caused by wind, temperature difference or other factors where no fan or mechanical air mover is used.
• Which term describes the change in duct size where air moves from a larger area to a smaller area?
• Which defines the breathing zone?
• Velocity Pressure (VP) is best described as
• Which quantity describes the potential energy stored in the air due to pressure differences in the duct system?
• Which indicates a compromised facepiece integrity?
• Which principle states that energy cannot be created or destroyed; it can only change form?
• Which statement describes an Airline Respirator's air source?
• What should you do after disassembling the facepiece during cleaning?
• What storage conditions protect respirators from physical damage?
• Digital Manometer: uses no oil and detects pressures directly. Which option correctly identifies this instrument?
• Administrative controls are described as which of the following?
• Which of the following is a respirator user responsibility?
• Exhalation valves in a respirator perform which function?
• Which item is NOT listed as a facepiece inspection concern?
• What is the term for a respirator connected to a source of clean air by a hose?
• Which item is NOT part of the workplace-specific written program contents?
• Which item is NOT a head strap/harness inspection concern?
• Which factor relates to spatial distribution in dilution ventilation?
• As air moves from a larger area to a smaller area, it contracts as it passes through the opening. This happens when moving from a large duct into a smaller duct, or from the ambient air into a hood opening.
• Which statement best describes an advantage of local exhaust ventilation?
• Who has overall oversight of the RP program?
• What must the workplace-specific written program ensure regarding air supply?
• Penetration describes ...
• Which statement best describes BEE responsibilities for ventilation?
• Exhaust Air cannot be used alone to properly dilute air. Which term describes this condition?
• A required component of the respirator program includes which of the following?
• Vent issue: Clogged flitter refers to what problem?
• Degradation refers to ...
• What is the purpose of head straps or head harness on a respirator?
• What do chemical cartridges do?
• Volumetric Flow Rate (Q) is defined as a measurement of air flowing through a point in the system.
• What determines the adequacy of a respirator program?
• Assigned Protection Factor defines:
• Pitot Traverse Method: used to perform duct velocity or transport velocity survey, and static pressure. Which statement is correct?
• What is an advantage of Airline Respirators?