CSLB C-39 Roofing (Trade Exam) — All Questions
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55 questions
Where must a roofing contractor's Code of Safe Practices be kept?
- a.At the job site or with supervisors✓
- b.Only in the IIPP binder at home
- c.Filed with CSLB
- d.Only at the main office
The Code of Safe Practices is posted at a conspicuous location at each job site office or provided to each supervisory employee, who keeps it readily available.Cal. Code Regs. tit. 8 §1509(c)
In what form must an employer's Injury and Illness Prevention Program exist?
- a.Oral only
- b.In writing✓
- c.No set form
- d.Posted video only
Section 3203 requires the program to be in writing. Employers with fewer than 10 employees may communicate general safe practices orally, but the program itself is written.Cal. Code Regs. tit. 8 §3203
What container does Cal/OSHA require for the first-aid kit on a construction project?
- a.A locked cabinet in the office
- b.The foreman's truck glove box
- c.Any cardboard box
- d.A weatherproof container✓
Every employer on a construction project must provide at least one first-aid kit in a weatherproof container, with contents inspected and replaced.Cal. Code Regs. tit. 8 §1512
Which describes the drinking water the heat illness standard requires?
- a.Fresh, pure, cool and free✓
- b.Bottled water only above 95°F
- c.Water only during meal breaks
- d.Any water, at cost
Employees must have access to potable water that is fresh, pure, suitably cool and provided free of charge, located as close as practicable to where they work.Cal. Code Regs. tit. 8 §3395
A roofer feels overheated at 86°F and asks to rest in the shade. What does the standard say?
- a.Allow and encourage the rest✓
- b.Allow it only with a doctor's note
- c.Deny it until 95°F
- d.Allow it only at lunch
Employees are allowed and encouraged to take a preventative cool-down rest in the shade whenever they feel the need, and are monitored for symptoms during it.Cal. Code Regs. tit. 8 §3395
Which is one of the high-heat procedures required at 95°F or above?
- a.Supplying salt tablets to all
- b.Naming who may call for help✓
- c.Stopping all work at noon
- d.Doubling the lunch break
High-heat procedures include designating one or more employees on each site as authorized to call for emergency medical services, along with communication, observation, water reminders and pre-shift meetings.Cal. Code Regs. tit. 8 §3395(e)
What is the maximum setting for the relief valve on a kettle fuel tank pressurized by pumped air?
- a.100 psi
- b.150 psi
- c.60 psi✓
- d.30 psi
The spring-loaded relief valve pops at no more than the vessel's safe working pressure, but in no case greater than 60 pounds per square inch.Cal. Code Regs. tit. 8 §1726(c)
A kettle must be moved along a public street. How must it be prepared?
- a.Drained 5 in below the splash rail✓
- b.Kept hot with the burner running
- c.Covered with a canvas tarp only
- d.Filled to the top so it cannot slosh
When a kettle is moved on any public street or roadway, it must be drained at least 5 inches below the splash rail.Cal. Code Regs. tit. 8 §1725(f)
What must happen to the burner of a kettle mounted on an elevated truck bed while the truck moves?
- a.It may stay on if the lid is closed
- b.It may stay on low
- c.It may stay on with an attendant riding
- d.It must be extinguished✓
Kettle burners must be extinguished when the truck is moving, and no riders are allowed on the elevated platform while the truck is in motion.Cal. Code Regs. tit. 8 §1727
What minimum construction does Cal/OSHA require for a hot asphalt bucket?
- a.Aluminum with a wooden handle
- b.No. 24 gauge steel, 1/4-inch bail✓
- c.Any plastic pail
- d.No. 30 gauge steel with a rope handle
Hot asphalt and pitch buckets must be No. 24 gauge or heavier sheet steel with a metal bail of 1/4-inch diameter or larger.Cal. Code Regs. tit. 8 §1729(a)
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An open container other than a carrying bucket is used to move hot asphalt. How full may it be?
- a.90 percent of capacity
- b.Up to the brim if lidded
- c.Completely full
- d.75 percent of capacity✓
Carrying buckets are filled no closer than 4 inches from the top, and no other open container transporting hot asphalt or pitch may be filled beyond 75 percent of capacity.Cal. Code Regs. tit. 8 §1725(c)
Coal-tar pitch is handled in a poorly ventilated confined space. What must be readily available?
- a.Respiratory and eye protection✓
- b.Nothing beyond normal clothing
- c.Only leather gloves
- d.A two-way radio
Suitable respiratory and eye protection must be readily available to workers handling coal tar pitch in confined spaces where ventilation is inadequate.Cal. Code Regs. tit. 8 §1728(b)
How far may a worker have to travel on a construction site to reach the nearest general-purpose (2A) fire extinguisher?
- a.No more than 25 feet
- b.No more than 200 feet
- c.No more than 75 feet✓
- d.Any distance on site
A 2A extinguisher is required for each 3,000 sq ft, and travel distance to the nearest one may not exceed 75 feet.Cal. Code Regs. tit. 8 §1922(a)
A ladder is set where it could contact an unprotected energized service conductor. What ladder is required?
- a.A steel ladder
- b.A non-conductive ladder✓
- c.Any ladder with rubber feet
- d.An aluminum ladder
Non-conductive ladders must be used where the ladder or user may contact unprotected energized electrical conductors or equipment.Cal. Code Regs. tit. 8 §3276
How must an extension ladder be erected?
- a.Rung locks released for flexibility
- b.Base section on top of the fly
- c.Fly section tied beside the base
- d.Fly on top, rung locks engaged✓
Extension ladders are always erected so the fly section is above and resting on the base section with the rung locks engaged.Cal. Code Regs. tit. 8 §3276
A flat residential roof has a 36-inch parapet. How is the employee's fall height measured under Section 1731?
- a.From the top of the parapet
- b.From the work surface down✓
- c.From the ceiling below the roof
- d.From the ridge of the neighboring roof
The fall height is the vertical distance from the employee's walking/working surface to the ground or level below, and parapet height is not included.Cal. Code Regs. tit. 8 §1731(e)
A commercial shingle roof (multiple-unit) at 4:12 is 24 feet high. Which protection does Section 1730 list?
- a.No protection below 30 feet
- b.Warning lines at 5 feet only
- c.Roof jacks or a 24-inch parapet✓
- d.A safety monitor only
For multiple-unit coverings from 0:12 through 5:12 on roofs more than 20 feet high, Section 1730 requires a roof jack system, a parapet at least 24 inches high, or equivalent protection.Cal. Code Regs. tit. 8 §1730(e)
What minimum material may span between roof jacks as a plank?
- a.2 x 4 construction lumber
- b.2 x 6 selected lumber✓
- c.Plywood strips, any size
- d.1 x 6 boards
Wooden members spanning between roof jacks must be selected lumber of at least 2 x 6 material, with jacks no more than 10 feet apart.Cal. Code Regs. tit. 8 §1724(a)
What must be laid beside each crawling board as a handhold?
- a.A snapped chalk line
- b.A warning line at 5 feet
- c.A fastened 3/4-inch Manila rope✓
- d.A second crawling board
A firmly fastened line of at least 3/4-inch diameter Manila rope, or equivalent, is laid beside each crawling board for use as a handhold.Cal. Code Regs. tit. 8 §1724(b)
When does Section 1671 require safety nets?
- a.Whenever a crew requests them
- b.Only over open water
- c.At 6 feet on all roofs
- d.At 25 feet when others fail✓
Safety nets are required where the elevation is 25 feet or more and personal fall arrest, restraint, positioning or more conventional protection is clearly impractical.Cal. Code Regs. tit. 8 §1671
How far may a worker free fall on a positioning device system?
- a.No more than 2 feet✓
- b.No more than 6 feet
- c.No more than 3.5 feet
- d.No more than 10 feet
Positioning devices must be rigged so the employee cannot free fall more than 2 feet. Six feet is the personal fall arrest limit.Cal. Code Regs. tit. 8 §1670(c)
What force must a guardrail midrail withstand without failure?
- a.50 pounds
- b.200 pounds
- c.150 pounds✓
- d.500 pounds
Midrails, screens and similar members must withstand at least 150 pounds in any downward or outward direction; the top rail must withstand 200 pounds.Cal. Code Regs. tit. 8 §1620(d)
A hazard is found that cannot be fixed at once without endangering workers or property. Who may stay in the area under the IIPP rule?
- a.Everyone, if a safety monitor is posted nearby
- b.Those needed to correct the condition✓
- c.Workers, as long as a harness is worn
- d.The crew foreman and the lead roofer
When an imminent hazard cannot be immediately abated without endangering employees or property, all exposed personnel are removed except those necessary to correct the condition. A harness, a foreman alone or a monitor does not substitute for removal.Cal. Code Regs. tit. 8 §3203(a)(6)
What must a roofer be given when first employed, under the Construction Safety Orders?
- a.A written test on the California Building Code chapters
- b.A map of the route to the nearest hospital or clinic
- c.Hazard instructions and the Code of Safe Practices to read✓
- d.A copy of the contractor's license and bond card on file
New workers are instructed on the hazards and safety precautions of the work and directed to read the Code of Safe Practices. A license copy, a code test and a hospital map are not what the section requires.Cal. Code Regs. tit. 8 §1510(a)
Who may the employer permit to operate equipment and machinery on a construction job?
- a.Qualified persons✓
- b.Workers over 18
- c.Workers with a driver's license
- d.Anyone the foreman points to
The employer may permit only qualified persons to operate equipment and machinery. Age, a foreman's say-so or a driver's license does not establish qualification.Cal. Code Regs. tit. 8 §1510(b)
What must the employer ensure about first aid on a construction project?
- a.A suitable number of trained persons is available✓
- b.A doctor is present on site during working hours
- c.Workers hold a nursing or first aid certificate
- d.First aid is learned on the job without training
Each employer must ensure the availability of a suitable number of appropriately trained persons to render first aid. It does not require a certificate for every worker or a doctor on site, and untrained first aid does not meet the rule.Cal. Code Regs. tit. 8 §1512
How much drinking water per employee per hour must be provided at the start of the shift under the heat illness standard?
- a.One gallon
- b.One pint
- c.One quart✓
- d.Half a quart
Water must be available at the start of the shift in enough quantity for one quart per employee per hour for the whole shift. A pint or half a quart is too little, and a gallon is more than the standard requires.Cal. Code Regs. tit. 8 §3395
What does the heat illness standard mean by a heat wave?
- a.A day forecast at least 5°F above the monthly average high
- b.A day forecast to be 95°F or higher by afternoon
- c.A day forecast at 80°F or more, 10°F over the five-day average✓
- d.Three or more days in a row forecast above 85°F
A heat wave is a day with a predicted high of at least 80 degrees and at least 10 degrees above the average high of the preceding five days. 95 degrees is the high-heat procedure trigger, and the other options are not in the definition.Cal. Code Regs. tit. 8 §3395(g)
How long must a worker newly assigned to a high heat area be closely observed by a supervisor?
- a.The first 2 days
- b.The first 30 days
- c.The first 14 days✓
- d.The first shift
An employee newly assigned to a high heat area is closely observed for the first 14 days of employment. Two days or one shift is too short for acclimatization, and 30 days exceeds the standard.Cal. Code Regs. tit. 8 §3395(g)
Which item is a required element of a written IIPP under Section 3203?
- a.A fixed price list for each item of safety equipment
- b.A procedure to investigate occupational injury or illness✓
- c.A written list of the tools owned by the contractor
- d.A weekly drug testing schedule for the crew members
The Program must include a procedure to investigate occupational injury or occupational illness. Drug testing, tool inventories and safety item pricing are not Program elements in the section.Cal. Code Regs. tit. 8 §3203(a)(5)
How must personal protective equipment be selected under the Construction Safety Orders?
- a.To fit each affected employee properly✓
- b.To be one standard size for the crew
- c.To match the contractor's colors
- d.To be the cheapest rated model
PPE must be selected so that it properly fits each affected employee. A single size, lowest cost or color matching does not ensure protection.Cal. Code Regs. tit. 8 §1514(f)
What is the 8-hour time-weighted average permissible exposure limit for respirable crystalline silica in construction?
- a.500 micrograms per cubic meter
- b.25 micrograms per cubic meter
- c.5 micrograms per cubic meter
- d.50 micrograms per cubic meter✓
No employee may be exposed to more than 50 micrograms per cubic meter as an 8-hour TWA. 25 is the level below which the section does not apply, and 5 and 500 are not the limit.Cal. Code Regs. tit. 8 §1532.3
Powered cutting of roofing tile is done on a rooftop. Does Section 1530.1 require a dust reduction system?
- a.No; the section covers wood cutting tools alone
- b.No; this work is excepted on rooftops✓
- c.Yes; if the cutting is of roofing pavers
- d.Yes; the rule reaches rooftops and other trades alike
Section 1530.1 says a dust reduction system is not required for rooftop operations with roofing tile, roofing pavers or similar materials. The section covers concrete and masonry cutting generally, so it is not limited to wood, and it does not make rooftop tile work a required case at every location.Cal. Code Regs. tit. 8 §1530.1
The attendant for a kettle must stay within 100 feet while the burner is on. What removes the distance and route limits?
- a.A tightly closed kettle lid with a latch
- b.A second extinguisher placed on the roof edge
- c.An operating thermostat, with service arranged✓
- d.A second fire watch posted on the ground below
If the kettle or tanker is controlled by an operating thermostat and arrangements are made for needed service, the 100-foot and route limits do not apply. A ground fire watch, another extinguisher or a closed lid does not replace attendance.Cal. Code Regs. tit. 8 §1725(d)
What must be maintained between the kettle and the hoist or hand line?
- a.A plywood walkway with cleats
- b.A clear path free of debris✓
- c.A caution line at 6 feet
- d.A second operator at each end
A clear path, free of debris, is kept between the kettle and the hoist or hand line so hot asphalt can be moved without tripping. A caution line, a cleated walkway or two operators is not what the rule specifies.Cal. Code Regs. tit. 8 §1725(e)
A roofer carries hot asphalt on a 6:12 roof. How many buckets may be carried at one time?
- a.One bucket✓
- b.Several, if lids are on
- c.Two buckets
- d.Three buckets
On a roof with a slope of 6:12 or steeper, a worker carries not more than one bucket of hot asphalt or pitch at a time. Two or three buckets, or lids, do not change the limit.Cal. Code Regs. tit. 8 §1725(b)
A mop bucket for hot asphalt can hold no more than how much?
- a.6 gallons
- b.12 gallons
- c.5 gallons
- d.9-1/2 gallons✓
Mop buckets may not exceed 9-1/2 gallons, and they may not be used as carrying buckets. 6 gallons is the carrying bucket limit, and 5 and 12 gallons are not limits in the section.Cal. Code Regs. tit. 8 §1729(a)
A kettle holds 120 gallons. What minimum extinguisher rating must be kept near it while in use?
- a.16:B.C.
- b.2:A extinguisher
- c.20:B.C.
- d.8:B.C.✓
The table sets 8:B.C. for kettles under 150 gallons, 16:B.C. for 150 to 350 gallons, and 20:B.C. above 350 gallons. The larger ratings belong to larger kettles, and a 2:A unit has no flammable-liquid rating.Cal. Code Regs. tit. 8 §1726(d)
More than 5 gallons of flammable liquid is being used on a job site. What must be within 50 feet?
- a.A water barrel and pail
- b.An extinguisher rated at least 2A
- c.An extinguisher rated at least 10B✓
- d.A 5-pound sand bucket
An extinguisher rated not less than 10B must be within 50 feet wherever more than 5 gallons of flammable or combustible liquid are used. A 2A unit is for ordinary combustibles, and a water barrel or sand bucket is not the rated unit required.Cal. Code Regs. tit. 8 §1922
A worker will operate near energized overhead lines carrying 12,000 volts. What minimum clearance does the General Clearances table give?
- a.6 feet✓
- b.10 feet
- c.15 feet
- d.3 feet
For lines from 600 to 50,000 volts the table requires 6 feet. 10 feet applies to lines over 50,000 up to 345,000 volts, and 3 feet and 15 feet are not table values for this range.Cal. Code Regs. tit. 8 §2946
A cover is placed over a roof opening. What load must it safely support?
- a.A fixed 100 pounds per square foot of cover
- b.The greater of 400 lb or twice the imposed weight✓
- c.The weight of a single worker plus tools
- d.The weight of the cover itself and its sign
Covers must support the greater of 400 pounds or twice the weight of employees, equipment and materials imposed on any one square foot of the cover. One worker, a flat 100 pounds per square foot or the cover's own weight does not match that measure.Cal. Code Regs. tit. 8 §1632(b)
By how much must the side rails of a ladder extend above the upper landing it serves?
- a.At least 24 inches
- b.At least 12 inches
- c.At least 6 feet
- d.At least 36 inches✓
Side rails must extend not less than 36 inches above the landing so the climber can step off and hold on. 12 and 24 inches are too short, and 6 feet is more than the rule requires.Cal. Code Regs. tit. 8 §3276
Two short ladders are available, and a crew wants a longer one. What does the ladder rule say about joining them?
- a.They may be joined for roof access work
- b.They may be lashed with rope if the joint is padded
- c.They may be joined if overlapped at least 3 feet
- d.They may not be tied together unless designed for it✓
Ladders shall not be tied or fastened together to provide longer sections unless they are designed for such use and fitted with the necessary hardware. Rope lashing, an overlap or roof-only use does not make the joint safe.Cal. Code Regs. tit. 8 §3276
A crew reroofs a house at 5:12. At what fall distance must roofers be protected under Section 1731?
- a.20 feet or more
- b.15 feet or more
- c.25 feet or more
- d.6 feet or more✓
For slopes from 0:12 through 7:12, protection is required where the fall distance is 6 feet or more. 15 feet is not the trigger in this section, 20 feet is the Section 1730 height for commercial roofing, and 25 feet is the elevation in Section 1671 for safety nets.Cal. Code Regs. tit. 8 §1731(c)(1)
Which work is NOT roofing work under Section 1731?
- a.Installing integral sheet metal
- b.Constructing the roof deck✓
- c.Loading roofing materials
- d.Installing vapor barrier
Roofing work includes loading and installing roofing materials, related insulation, integral sheet metal and vapor barrier work, but not construction of the roof deck. The other three are listed as roofing work.Cal. Code Regs. tit. 8 §1731(b)
A safety monitor is assigned during roof work under a fall protection plan. What restriction applies to the monitor?
- a.No other duties that could draw attention from monitoring✓
- b.Must also carry materials up to the crew on the roof
- c.Must also tend the kettle while watching the crew
- d.Must also operate the hoist during roof loading
The safety monitor shall not have other responsibilities that could take attention from monitoring, and must stay in sight and communication with the employee. Hoisting, running a kettle or carrying materials are exactly the distractions barred.Cal. Code Regs. tit. 8 §1671.2
A roof warning line is rigged with rope. Section 1730 sets what minimum tensile strength for it?
- a.5,000 pounds
- b.200 pounds
- c.500 pounds✓
- d.1,000 pounds
Warning lines must have a minimum tensile strength of 500 pounds. 200 pounds is the breaking strength for a control line in Section 1671.2, and 1,000 and 5,000 pounds are not warning line values (5,000 pounds applies to lanyards).Cal. Code Regs. tit. 8 §1730(b)(2)
What do the headers used with roof warning lines consist of?
- a.Ropes and flags strung between ladders at each edge
- b.Painted lines on the roof deck at 6-foot intervals
- c.Plywood panels nailed across the ridge and the hips
- d.Roofing sheets or materials laid parallel to the edge✓
Headers are sheets of roofing or other roofing materials laid parallel to the roof edges to warn employees they are nearing the edge. Ropes between ladders, ridge plywood and painted lines are not the headers described.Cal. Code Regs. tit. 8 §1730(b)(3)
Equipment pulled by an operator walking backwards is limited on which roofs under Section 1730?
- a.It may not be used on slopes greater than 4:12✓
- b.It may be used on steep slopes with a safety monitor
- c.It may not be used on roofs that have parapets
- d.It may not be used on slopes below 2:12
Equipment pulled by an operator walking backwards shall not be used on a roof with a slope greater than 4:12. Flatter roofs are not barred, parapets are not the trigger, and the rule does restrict slope.Cal. Code Regs. tit. 8 §1730(d)
What minimum breaking strength must lanyards and vertical lifelines in a personal fall arrest system have?
- a.3,000 pounds
- b.1,800 pounds
- c.5,000 pounds✓
- d.500 pounds
Lanyards and vertical lifelines must have a minimum breaking strength of 5,000 pounds. 1,800 pounds is the maximum arresting force on a harness, 3,000 pounds applies to self-retracting lifelines, and 500 pounds is a warning-line strength.Cal. Code Regs. tit. 8 §1670(b)