CSST EXAM PREP 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. ALREADY GRADED A+, Exams of Building and Prefabrication

Download CSST EXAM PREP 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. ALREADY GRADED A+ and more Exams Building and Prefabrication in PDF only on Docsity! CSST EXAM PREP 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. ALREADY GRADED A+ "Significantly Damaged Surfacing" is an example of what, by AHERA? - ANSAn appropriate written assessment of ACM 3 things to know about Chrysotile? - ANS80% of asbestos was used in buildings White, long, and curly, Hydrophilic (easily wets) A "Hazard Assessment" is developed by the Management Planner in order to? - ANSPrioritize response actions A contractor must register the work with Cal-OSHA if they disturb...? - ANS100 SF or more of ACM A homogenous area of fireproofing with 10% localized damage would be classified into what assessment category? - ANSDamaged Surfacing, Assessment Category 2 A ladder must have a lean ratio of...? - ANS1:4 i.e. one foot out for every four feet up A pipe chase, a class room and the plenum above a drop ceiling are considered to be? - ANSFunctional Spaces A respiratory protection program is required when...? - ANSWhenever TSI and surfacing is being removed and/or disturbed and wherever a Negative Exposure Assessment (NEA) has not been established. A school is required to have an O&M (Operation and Maintenance) Plan when...? - ANSWhenever a k-12 school building contains friable or assumed ACBM A two story building has a basement, a boiler room, one pipe chase, two restrooms on each floor, a lobby and an office area. How many function spaces does the building have? - ANS9 one basement one boiler room one pipe chase two bathrooms on the first floor two bathrooms on the second floor one lobby (presumably on the first floor) one office (presumably on the second floor. Why else would there be two bathrooms on the second floor and nothing else?) Be aware of badly worded questions on the exam. It isn't clear whether everything before the bathrooms can be considered to be on both floors or just the bathrooms by the way the question is worded. However, if you take typical building schematics into consideration there is no way there would be two basements on each floor since basements are foundation level spaces. In small buildings there will typically be only one boiler room whereas high rise buildings either have multiple boiler rooms in really old historical buildings or one very large boiler room almost the size of the foundation itself. The Pipe chase will run along the plumbing, between the walls. The sizes always vary but typical there is only one per building unless it is a very large building A vibration boot on an air handling system, roofing material, and 9"x9" floor tile is considered to be what, under AHERA? - ANSSuspect Asbestos Containing Materials ACCM must be verified by at least... - ANS400 point count ACCM waste requires a DOT manifest. - ANSFalse. Although, it can be hauled with general demolition debris the receiving waste facility should be notified prior to receiving waste in order to properly secure the waste. According to 40 CFR 61.145 Notifications are required when...? - ANS10 days Prior to start According to OSHA both a Mini-enclosure and a Negative Pressure Enclosure (NPE) are examples of...? - ANSEngineering controls According to OSHA, bulk sampling is considered to be what classification of asbestos work? - ANSClass III O&M (operations and maintenance) According to OSHA, on a multi-employer worksite the _______ is deemed to exercise general supervisory authority - ANSGeneral Contractor Aggressive air sampling can be described as? - ANSArtificially disturbing the air within the work area AHERA requires that warning labels be placed...? - ANSImmediately adjacent to any friable and non-friable ACBM in routine maintenance areas Manufacturers also used chrysotile asbestos in automobile brake linings, gaskets and boiler seals, and insulation for pipes, ducts, and appliances. Estimated to be used in at least 80% of building materials. Confined spaces... - ANSrequire a permit to enter Has a single opening and is not normally accessed Has a potential hazardous atmosphere or has an oxygen deficiency Covering the inhalation valves of a respirator while doing a fit check is described as...? - ANSA negative pressure fit check Crocidolite asbestos - ANSblue asbestos - was commonly used to insulate steam engines. It was also used in some spray-on coatings, pipe insulation, plastics, and cement products Electrical equipment in the work area must be...? - ANSDouble insulated Grounded Connected to a GFCI power source Encapsulate - ANSA liquid material which can be applied to asbestos-containing material which controls the possible release of asbestos fibers from the material either by creating a membrane over the surface (Bridging encapsulant) or by penetrating into the material and binding it's components together (Penetrating encapsulant) EPA recommends how many samples per friable material? - ANS9 (EPA always recommends 9 samples no matter the sample or surface area. However, the 3,5,7 rule is a requirement for friable materials) Errors and Omissions Liability is for...? - ANSThe Consultant Failure to comply with existing Federal, State or Local regulation is a violation of...? - ANSStatutory Law Fireproofing was banned in what year? - ANS1973 Fireproofing, Sprayed on "popcorn" ceiling, and wall texture are all considered to be _____ by AHERA - ANSSurfacing Material For each response action, the Management Planner must...? - ANSSpecify the means and methods to used for completing each response action. Grade D air consists of...? - ANSO2 content of 19.5-23.5% Hydrocarbon Content of 5mg/cubic meter or less CO content of 10ppm or less CO2 content of 1,000ppm or less lack of noticeable odor Heat, Slip, Trips, Falls, Electrical are examples of what? - ANSHazards that could be encountered during an asbestos abatement project Homogenous areas can be described as...? - ANSBuilding materials that are similar in appearance, color, texture and application date. How do you calculate the TWA value? Sample 1 = 0.004 f/cc Time: 0700-0830 Sample 2 = 0.08 f/cc Time: 0830 - 0900 Sample 3 = 0.0079f/cc Time: 0900 -1450 - ANSYou would need to add the sum of each sample and divide by 480 minutes to get the 8-hour TWA. 8 hours = 480 minutes 1 hour = 60 minutes Sample 1 = concentration x time in minutes ex. sample 1 + sample 2 + sample 3/ 480 ((0.004 x 90)+(0.08x30)+(0.0079x350)) / 480 = X (0.36+2.4+2.765)= 5.525 5.525/480 = 0.0115 How do you identify Heat Stress? - ANSClammy skin, profuse sweating, and dizziness How does an Asbestos Building Inspector determine the potential for disturbance? - ANSThrough the material's potential for disturbance by physical contact, air erosion, and vibration How does the AHERA building Inspector determine friability? - ANSBy touch How far does penetrating encapsulant penetrate? - ANS13mm (1/2 inch) How is a preventative measure defined? - ANSAn action taken to reduce the potential of a ACBM becoming damaged or significantly damaged How long does Asbestos stay in the air? - ANS48-72 hours to settle. (Theoretically, it could stay airborne indefinitely as any disturbance to the airborne fiber can cause it to rise back into the breathing zones.) How many quality assurance samples does the EPA recommend? - ANS1 per building or 1 per 20 samples whichever is greater How many samples can a contractor take for bidding purposes? - ANS12 samples and they cannot be used in lieu of an asbestos materials report. These samples can only be used for assessing potential worker exposure and bidding purposes In California, the Connelly Bill requires building owners to what? - ANSIt requires to that if a building a building owner knows about asbestos in his/her building, then all tenants must be notified inspection for breaches in the containment shall be...? - ANSperformed before work and at the beginning of each shift, smoke tested for leaks and any leaks sealed. Labs are required by NIST to have what certification to analyze bulk and TEM asbestos samples? - ANSNVLAP (National Voluntary Laboratory Accreditation Program) Ladders must extend by how many feet above a structure? - ANS3 feet Lung Cancer is? - ANSA cancer of the lung tissue Main route of exposure for asbestos? - ANSThrough inhalation Mechanical removal...? - ANSWill turn non-friable ACM into friable ACM (RACM) Mesothelioma is? - ANSA cancer of the lining surrounding the lungs Monies assessed against a contractor who failed to complete a project according the schedule is called...? - ANSLiquidated Damages NIOSH 7400 asbestos counting A rules - ANS"A rules" Count any fiber > 5 micrometers which is entirely within graticule. Count only fibers with length-to-width ratio > 3:1. For fibers that cross the boundary of the graticule count as 1/2 fiber any fiber with one end lying in graticule area. Do not count any fiber which crosses boundary more than once. Count enough graticule fields to yield 100 fibers. Count at least 20 fields. Stop at 100 graticule fields regardless of count. NIOSH 7400 can be used in conjunction with NIOSH 7402 - ANSTrue. TEM (7402) results supersede PCM results (7400) The incidence rate of lung cancer among occupationally exposed workers who smoke is? - ANS90x greater The latency period for asbestos related diseases is? - ANS10-40 years The Latency period is? - ANSThe time period from when an individual is exposed and the diagnosis of a disease The limit of detection by X-Ray Diffusion (XRD) is? - ANS1% The Management Planner can achieve "the least burdensome manner" by? - ANSCombining the asbestos removal work with other concurrent or scheduled work The maximum length of hose allowable for Grade D air to an air supplied respirator is...? - ANS300 feet The most appropriate response action as defined by AHERA is? - ANSThe one that protects human health and the environment in the least burdensome manner The most common variety of asbestos used in building materials? - ANSChrysotile The oxygen content for Grade-D air is? - ANS19.5-23.5% The potential of asbestos related diseases depends on...? - ANSAmount of asbestos inhaled Length of exposure Whether the exposed worker smokes Age The primary objective of AHERA is? - ANSIdentify and safely manage asbestos in the building The primary objective of the NESHAP is - ANSTo Control the generation and disposal of asbestos waste The purpose of a Payment and Performance Bond is...? - ANSTo guarantee that the owner will be able to have the project completed if the abatement contractor goes bankrupt The results of employee exposure monitoring is required to be given to...? - ANSThe employee The type of insurance usually required by the Building owner for the asbestos abatement contractor is? - ANSGeneral Liability and Worker's Compensation Bond Three things to know about Amosite? - ANSLess than 15% of asbestos used in building materials Brown Hydrophobic (repels water) Three things to know about Crocidolite? - ANSLess than 5% of asbestos used in building materials Blue; Long and straight Typically used in high heat applications (brakes, gaskets, etc.) TITLE 22 of the CCR - ANSDTSC - Haz Waste regulations for California To be charged with criminal liability the inspector must...? - ANSmust know his actions are wrong and the Building Inspector must perform the guilty act Toe boards are required to be installed on scaffolding that is...? - ANS6 feet tall Training is outlined in what regulation? - ANSASHARA Training records must be kept for - ANSOne year past the last the day of employment Tremolite and actinolite - ANSare not used commercially, but they can be found as contaminants in chrysotile asbestos, vermiculite and talc. These two chemically similar minerals can be brown, white, green, gray or transparen Under NIOSH 7400 what are the recommended air sampling ranges. - ANS400-2,400 for office environments. Vitrification is? - ANSsolidifying liquid waste into solid glass or ceramic logs - in other words an Asbestos waste disposal technique What are the 3 filters to a Negative Air Machine (NAM) - ANSPre-filter, HEPA 5u(micron), Exhaust filter What are the 3 liabilities? - ANSRegulatory, Criminal, and Civil What are the 5 response actions? - ANS1 - Removal 2 - Repair 3 - Encapsulation 4 - Enclosure 5 - O&M What are the 7 Hazard rankings according to AHERA? - ANSThe potential for future disturbance by the condition of the ACM with 1 - lowest; 7 - Highest - 1 low Good - 2 medium - 3 high - 4 low Damaged - 5 medium - 6 high Significantly Damaged - 7 requires response action Non-friable ACM - monitor What are the assigned protection factors? - ANS1/2 face APR - 10 full face APR - 50 1/2 face PAPR - 50 full face PAPR - 1,000 PAPR hood/ loose fitting - 25 Supplied air - 1,000 SCBA positive pressure/ pressure demand mode- 10,000 What are the components of an O&M program? - ANSA schedule for periodic cleaning in areas that contain ACBM Training for custodial and maintenance employees Records of periodic surveillance What are the components of the HVAC system? - ANSCondenser coils The ducts The chiller unit What are the differences between claims made and occurrences? - ANS"Claims made" are claims that fall within the active policy period "Occurrence" are claims that are processed after the active policy period but the exposure occurrence date falls within the active policy period. Generally has a "sunset" clause that ends coverage if the claim is not processed before a certain date. "True occurrence" is the same as above but with no sunset clause What are the OSHA Asbestos Work Classifications? - ANSClass I - TSI and Surfacing Material >10 SF or 25>LF Class II - Misc. Materials (not TSI) Class III - Repair and maintenance operations where ACM including TSI and surfacing material are likely to be disturbed what is ACBM? - ANSAsbestos Containing Building Material (interior and >1%) What is ACCM? - ANSAsbestos Containing Construction Material (>0.1%; greater than one-tenth of one percent by weight) This is defined by Cal-OSHA What is ACM? - ANSAsbestos-containing material is defined as any material containing more than 1% asbestos; >1%. What is ACWM? - ANSAsbestos Containing Waste Material greater than or equal to 1%; >=1% (DOT definition) What is AHERA? - ANSAsbestos Hazard Emergency Response Act What is Asbestosis - ANSAsbestosis is a condition developed in the lungs as a result of inhalation of asbestosis fibers. What is ASHARA - ANSAsbestos School Hazard Abatement Reauthorization Act of 1990 What is bituminous roofing? - ANSA tar-like or asphalt with slag and gravel roofing What is fibrosis? - ANSformation of scar tissue in the lungs what is GFCI? - ANSGround Fault Circuit Interrupter (circuit breaker) What is mesothelioma? - ANSCancer that arises from the mesothelial cells of the pleura is caused by asbestos fibers What is NESHAP? - ANSNational Emission Standards for Hazardous Air Pollutants under the authority of Section 112 of the CAA, and asbestos was one of the first hazardous air pollutants regulated What is NIOSH? - ANSNational Institute for Occupational Safety and Health What is NOA? - ANSNaturally Occurring Asbestos What is PACM according to OSHA? - ANSPresumed Asbestos Containing Materials, are TSI and surfacing materials in buildings built through 1980 (i.e. or built before 1981). What is plenum space? - ANSAn enclosed space that is used for airflow. Example: the area above a drop ceiling. What is PLM? - ANSPolarized Light Microscopy - A visual estimation method. Limit of Detection (LOD) of 1% +-3%. If less than one percent assume 1%, 400 - point count LOD 0.25%, or TEM with gravimetric reduction What is RACM? - ANSRegulated Asbestos-Containing Material - Friable or non-friable asbestos containing material that has been made friable through mechanical means (power tools) What is SSSD? - ANSSmall-scale, short duration. Cannot be asbestos abatement What is the 3 - 5 - 7 rule? - ANSThe number of samples required per total square footage of friable ACM 3 samples for <1,000 SF; less than one thousand square feet. 5 samples for 1,000 SF to 5,000 SF 7 samples for >5,000 SF; greater than five thousand square feet What is the 30 - minute Excursion Limit (EL)? - ANS1.0f/cc What is the 40 CFR 763 Subpart E? - ANSAHERA What is the AHERA TEM Clearance level? - ANSThe average of the 5 inside samples is below 70 structures/mm2 What is the Cal-OSHA scaffolding height that requires a fall arrest system? - ANS7. 1/2 Feet What is the detection limit for NIOSH 7400? - ANS4.0 fibers per 100 fields or 5.5 fibers/mm2 What is the dose-response relationship with asbestos and cancer? - ANSThe correlation between exposure to asbestos and disease (i.e. cumulative effect of high exposure and short duration or chronic exposure over longer duration) What is the EPA? - ANSEnvironmental Protection Agency What is the federal OSHA scaffolding height that requires a fall arrest system? - ANS6 feet What is the Maximum Use Concentration (MUC)? - ANSPFxPEL=MUC Example of 1/2 face APR. Protection Factor(PF) = 10 PEL = 0.1f/cc 10 x 0.1f/cc = 1f/cc 1/2 face APR can be used in environments where fiber concentrations is up to but not greater than 1 fiber per cubic centimeter What is the minimum level efficiency of a HEPA filter? - ANS99.97% What is the most common asbestos related disease? - ANSAsbestosis What is the most important consideration when planning an asbestos abatement project? - ANSIsolation of the buildings HVAC system in the work area What is the NIOSH 7400 "A" counting rules? - ANSUse of a Walten-Beckette Graticule; count all fibers that are 5um(micrometer) with a length to width ratio of 3 to 1 or longer; 3:>=1. Count to 100 fibers, 20 fields minimum; stop at 100 fields. Range 100 - 1300 fibers/mm2. Calibration by phase-shift test slide. Precision 0.10 - 0.12 What is the objective of the 7 AHERA Hazard rankings? - ANSTo determine the priority of the response actions What is the overall precision of NIOSH 7400 - ANS0.115 - 0.13 What is the PCM clearance level - ANSAll samples are below 0.01 fibers/cc What is the Permissible Exposure Limit (PEL) for an 8 hour Time Weighted Average (TWA) - ANS0.1 f/cc; one-tenth of a fiber per cubic centimeter What is the primary objective of the OSHA asbestos regulations? - ANSTo require employers to protect employees who perform asbestos related work What is the protection factor of a full face Powered Air Purified Respirator (PAPR) - ANS1,000 What is the regulatory definition of friability? - ANSthe tendency of a solid substance to break into smaller pieces under hand pressure What is the required response action to significantly damaged friable surfacing ACBM? - ANSImmediately isolate the functional space and remove, enclose, or encapsulate the material Which insurance is required by law? - ANSWorker's compensation Who is responsible for designating functional spaces in school? - ANSThe Project Designer and Management Planner Why is admin controls, engineering controls, and PPE the correct order to prevent employee exposure? - ANSAdministrative controls prevent unnecessary contact with ACM such as restricted access or required training if contact is required. (prevent) Engineering controls are means to prevent, control, minimize or contain the disturbance to the ACM within a designated area. (control) PPE is the last line of defense against exposure. Prone to human error. Typically requires oversight. (mitigation) Why is oxygen deficiency, combustible gasses and vapors, toxic chemicals is the correct order to test for hazardous atmosphere? - ANSOxygen levels can be indicative on which, if any, lower explosive limits (LELs) could potentially be encountered. (immediate danger) Followed by the combustible gasses and vapors which density and flash point may change with atmospheric (weather) conditions and temperature. (imminent danger to self, others and area) And lastly toxic chemicals which may not present any symptoms of positioning until a later time due to unscented chemicals and toxins and it's effects come down to the individual and their dose-response (potentially immediate danger to self and others) Why is the Equipment room, Shower and clean room the correct order for a Class I decontamination unit? - ANSIn asbestos work, the Decon Unit works to prevent migration of fibers from the containment to the outside. The equipment room is where all the dirty tools and used tyveks suites will be removed. Followed by removal of the respirator in the shower room to wash any contamination that may have lingered on the worker and on the respirator. Lastly the clean room, where the worker can don their uncontaminated plainclothes Why would a pipe insulation with jacketing in a classroom be a bigger risk than pipe insulation with a torn jacket in a mechanical room? - ANSSeveral reasons. 1. The number of occupants is greater in the classroom 2. The potential for disturbance is greater by a factor of each individual within the classroom. 3. The classroom can be assumed to be occupied for at least 8 hours a day. 4. Mechanical Rooms are seldom visited by workers and if visited are typically short visits. 5. Once identified, the mechanical room would have the proper warning label to the room and the workers that would need to access that area would have asbestos awareness training. Why would AHERA consider Acoustical ceiling texture in the school's band room to pose the greatest hazard to the building occupants? - ANSIt is considered to be a friable sprayed-on material in an occupied space with frequent disturbances. TSI above a drop ceiling, if damaged would be contained in the plenum. While the ACM floor tile also in an occupied space with frequent physical contact, it is considered to be non-friable and non-hazardous. Any fiber release would be considered minimal.