CSLB C-8 Concrete (Trade Exam) — All Questions
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52 questions
Which written safety program must every California employer maintain?
- a.A stormwater pollution plan
- b.A quality control manual
- c.An Injury and Illness Prevention Program✓
- d.A traffic control plan
Title 8 §1509 requires every employer to establish, implement and maintain an effective IIPP under GISO §3203. The other plans apply only in particular situations.Cal. Code Regs. tit. 8, §1509
What must a construction employer's first-aid kit be kept in?
- a.A locked office cabinet
- b.The foreman's truck only
- c.A weatherproof container✓
- d.Any cardboard box
Title 8 §1512 requires at least one first-aid kit in a weatherproof container, regularly inspected and restocked.Cal. Code Regs. tit. 8, §1512
Who must select and provide hand protection against chemical burns from wet cement?
- a.The building inspector
- b.The employer✓
- c.The cement supplier
- d.The worker
GISO §3384 requires employers to select, provide and require appropriate hand protection where hands are exposed to hazards such as chemical burns.Cal. Code Regs. tit. 8, §3384
A worker develops a worsening skin rash after years of handling cement. What is a likely cause?
- a.Silica in the fresh concrete
- b.An allergy to hexavalent chromium✓
- c.Too little water in the mix
- d.Low air content
Some workers become allergic to the hexavalent chromium in cement; the allergy can appear after years and worsen with each exposure.CPWR/eLCOSH, Cement Hazards and Controls
Wet cement gets on a worker's forearm. What should be done?
- a.Rinse it in the tool bucket.
- b.Cover it with a glove.
- c.Wash it off with cool, clean water.✓
- d.Wipe it with a dry rag later.
Skin in contact with wet cement should be washed immediately with large amounts of cool, clean water; tool-bucket water is full of cement.CPWR/eLCOSH, Cement Hazards and Controls
A laborer uses a handheld wet saw indoors for 2 hours. Under Table 1, what respirator is needed?
- a.A dust mask only
- b.A supplied-air hood
- c.APF 10 respirator✓
- d.None, under 4 hours
For handheld power saws with integrated water used indoors or in an enclosed area, Table 1 requires APF 10 for any duration; the 4-hour threshold applies outdoors.Cal. Code Regs. tit. 8, §1532.3
Under Cal/OSHA's silica rule, what makes someone a competent person?
- a.Has worked 10 years
- b.Holds a college degree
- c.Owns the company
- d.Can spot and fix silica hazards✓
A competent person can identify existing and foreseeable silica hazards and has authorization to take prompt corrective measures; both knowledge and authority are needed.Cal. Code Regs. tit. 8, §1532.3
On an 85 °F day, a finisher feels overheated and wants to rest in the shade. What does the heat rule say?
- a.Only at scheduled breaks.
- b.Allow and encourage the rest.✓
- c.Only with a doctor's note.
- d.Only above 95 °F.
Employees must be allowed and encouraged to take a preventative cool-down rest in the shade whenever they feel the need; the 95 °F threshold is for high-heat procedures.Cal. Code Regs. tit. 8, §3395
About how long does acclimatization to heat take for most people, under the heat rule's definition?
- a.Four to fourteen days✓
- b.One full season
- c.One to two hours
- d.Thirty days
Title 8 §3395 states acclimatization peaks in most people within four to fourteen days of regular work for at least two hours a day in the heat.Cal. Code Regs. tit. 8, §3395
A saw operator's noise exposure exceeds Cal/OSHA's Table N-1. What must the employer use first?
- a.Earplugs only, in every case
- b.A shorter lunch break
- c.Nothing if the job is outdoors
- d.Feasible noise controls✓
When sound levels exceed Table N-1, feasible administrative or engineering controls must be used; if they fail to bring levels within the table, personal protective equipment is provided and used.Cal. Code Regs. tit. 8, §5096
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A worker will place concrete on a wall top 8 ft above grade with no guardrail. What is required?
- a.Personal fall protection✓
- b.Nothing under 10 ft
- c.A spotter below
- d.A hard hat only
Title 8 §1670 requires personal fall arrest, restraint or positioning systems where workers are exposed to falls in excess of 7½ feet.Cal. Code Regs. tit. 8, §1670
Where must the mid-rail of a standard guardrail be?
- a.Anywhere below 30 inches
- b.Halfway between top rail and floor✓
- c.At the same height as the top rail
- d.Six inches above the floor
Title 8 §1620 places the mid-rail halfway between the top rail and the floor, platform, runway or ramp.Cal. Code Regs. tit. 8, §1620
A contractor uses round rebar caps. What minimum diameter must they have?
- a.3 inches
- b.2 inches
- c.1½ inches
- d.4½ inches✓
Title 8 §1712 requires protective covers of at least 4 × 4 in square or, if round, at least 4½ in in diameter.Cal. Code Regs. tit. 8, §1712
What safety system must every concrete pump have under Title 8?
- a.An emergency stop system✓
- b.A fire extinguisher only
- c.A second operator
- d.A backup alarm only
Title 8 §1720 requires each machine to be equipped with an emergency stop system, with stops at the control panels and remote control.Cal. Code Regs. tit. 8, §1720
A crane is lowering a concrete bucket into position. Where may workers stand?
- a.Not under the bucket✓
- b.Directly under it to guide it
- c.On the bucket rim
- d.Under it if wearing hard hats
No employee may work under concrete buckets while they are being elevated or lowered into position, and riding buckets is prohibited.Cal. Code Regs. tit. 8, §1720
When must haulage vehicles be checked for brakes, lights and other safety equipment?
- a.Only after an accident
- b.Only at annual inspection
- c.Once a month
- d.Start of each shift✓
Title 8 §1593 requires vehicles in use to be checked at the beginning of each shift for safe operating condition.Cal. Code Regs. tit. 8, §1593
A small truck without an automatic backup alarm must back up where the driver can't see behind it. Which option does Title 8 allow?
- a.Honking once before backing
- b.Turning on the headlights
- c.A spotter in clear view✓
- d.Backing slowly without help
Where rear vision is obstructed and there is no automatic alarm or braking device, administrative controls such as a spotter in clear view of the operator may be used.Cal. Code Regs. tit. 8, §1592
A laborer carries a long aluminum screed near a 12,000-volt overhead line. Under the general clearance table, how close may it come?
- a.No closer than 1 foot
- b.No closer than 6 feet✓
- c.No closer than 2 feet
- d.Any distance if gloved
Title 8 §2946 Table 1 sets 6 ft for general activities near lines from 600 to 50,000 volts; boom-type equipment uses Table 2 (10 ft).Cal. Code Regs. tit. 8, §2946
Flaggers work a curb job after dark. What must their warning garments be?
- a.Retroreflective✓
- b.Orange only
- c.Not required at night
- d.Any bright color
During hours of darkness, warning garments must be retroreflective and meet the ANSI/ISEA high-visibility standard, and flagger stations must be lit.Cal. Code Regs. tit. 8, §1598
Where should waste solvent rags and empty sealer cans go on a jobsite?
- a.A storm drain inlet
- b.The concrete washout
- c.The general debris pile
- d.Covered, separate containers✓
Title 8 §1513 requires flammable or hazardous wastes to be placed in covered containers separate from normal debris.Cal. Code Regs. tit. 8, §1513
A mixer with lockable controls needs a repair. What does Title 8 require?
- a.Turn it off and post a sign only.
- b.Have a helper watch the switch.
- c.Lock it out in the off position.✓
- d.Leave it running at idle.
Machines with lockable controls must be locked out or positively sealed in the off position during repair work and setting-up operations.Cal. Code Regs. tit. 8, §3314
Under Title 8 §1510, who may operate equipment and machinery on a construction job?
- a.Any employee over 18
- b.Only qualified persons✓
- c.The most senior worker on the crew
- d.Anyone who has watched it used
The employer permits only qualified persons to operate equipment and machinery. Age, having watched, and seniority are not the test of being qualified.Cal. Code Regs. tit. 8, §1510
What must be true of personal protective equipment selected for employees?
- a.It must come in one standard crew size
- b.It must be purchased by each employee
- c.It must be bright orange or lime green
- d.It must fit each affected employee✓
PPE is selected to ensure it properly fits each affected employee and is used per the manufacturer's instructions. One-size PPE fits poorly, the employer supplies required PPE, and color is not the fit requirement.Cal. Code Regs. tit. 8, §1514
When must employees wear approved head protection under Title 8 §3381?
- a.When working more than 6 feet above the ground or grade level
- b.When flying or falling objects, or shock and burns, are a risk✓
- c.When working directly below a crane, hoist or boom
- d.On public works projects, highways and bridge jobs
Head protection is required wherever flying or falling objects, or electric shock and burns, could injure the head. Crane work, a height threshold, and public jobs are narrower than the rule.Cal. Code Regs. tit. 8, §3381
Which exposure calls for foot protection under Title 8 §3385?
- a.Work that is carried out in wet or muddy weather
- b.Falling objects, crushing or penetration✓
- c.Work done in cold weather or on frozen ground
- d.Concrete dust blowing across the slab
Foot protection is required where employees face falling objects, crushing or penetrating actions, electrical hazards, or hot or corrosive substances. Cold ground, wet weather and blowing dust are not the listed hazards.Cal. Code Regs. tit. 8, §3385
What does Title 8 say about loose sleeves, ties and cuffs around machinery?
- a.They are fine, provided they are tucked into gloves
- b.They must not be worn where they could get entangled✓
- c.They are fine for concrete finishers on the slab
- d.They are fine whenever the machine has a guard on it
Loose clothing must not be worn around machinery in which it might become entangled. Tucking, trade exceptions, and guards do not remove the entanglement hazard.Cal. Code Regs. tit. 8, §1522
A finisher's boot fills with wet concrete, and the worker keeps working. What injury can result?
- a.Frostbite from the cooling of the evaporating water
- b.A lung disease from breathing in silica dust
- c.Chemical burns or ulcers from trapped concrete✓
- d.Only a minor drying of the skin that fades by evening
Wet concrete trapped against skin, as when it falls inside boots, can cause first, second or third degree burns or ulcers. Drying alone understates it, frostbite is not the mechanism, and silicosis comes from inhaled dust.CPWR/eLCOSH, Cement Hazards and Controls
A worker wants to wash cement off his hands in a bucket used to clean tools. What does the guidance say?
- a.Fine, as long as the bucket water is kept warm
- b.Fine, if the bucket is refilled with water every hour
- c.No; rinse with clean water only✓
- d.Fine, because any water at all will dilute the cement
Hands should not be washed in water from buckets used for cleaning tools, since that water carries cement. Dilution, warm water, and an hourly refill do not make it clean.CPWR/eLCOSH, Cement Hazards and Controls
Table 1 of the silica standard lists a work practice for cleaning holes drilled in concrete. What is it?
- a.Wipe them with a dry rag
- b.Use a HEPA-filtered vacuum✓
- c.Blow them out with compressed air
- d.Sweep them dry with a stiff broom
The Table 1 practice is a HEPA-filtered vacuum, which captures respirable dust. Compressed air, dry sweeping and dry wiping all put silica back into the air.Cal. Code Regs. tit. 8, §1532.3
Which engineering control does Table 1 of the silica standard list for a handheld powered chipping tool?
- a.Dry chipping, with the worker standing upwind
- b.Continuous water spray at the point of impact✓
- c.A damp rag laid over the tool to catch the dust
- d.A large fan blowing the dust away from the worker
Table 1 lists a water delivery system that supplies a continuous stream or spray of water at the point of impact. A fan, an upwind stance, and a rag are not listed controls.Cal. Code Regs. tit. 8, §1532.3
Noise exposure still exceeds Table N-1 after feasible controls. What does Title 8 say about ear protection?
- a.The employer supplies it and requires it✓
- b.It is issued when a worker asks for it
- c.Workers must buy their own at the supply store
- d.It is required once levels pass 105 dBA
Ear protection is provided by the employer, who must require employees to wear it. Employee purchase, issue on request, and a 105 dBA threshold are not what the rule says.Cal. Code Regs. tit. 8, §1521
A finisher on a hot day is staggering, vomiting and disoriented. What does §3395 require of the employer?
- a.Implement emergency response procedures✓
- b.Offer water and wait 30 minutes
- c.Send the worker home to rest
- d.Move the worker to a shaded area for the shift
Signs such as decreased consciousness, staggering, vomiting, disorientation or convulsions indicate severe heat illness and call for emergency response procedures. Sending someone home alone, waiting, and shade alone are not enough.Cal. Code Regs. tit. 8, §3395
A worker shows signs of heat illness. May the employer simply send the worker home alone?
- a.Yes, when the shift is nearly over anyway
- b.No; monitor the worker and offer first aid✓
- c.Yes, if a coworker can give the worker a ride
- d.Yes, as long as the worker agrees to go home
A worker with heat illness symptoms must be monitored and not left alone or sent home without being offered first aid or emergency medical services. Consent, shift length, and a ride do not satisfy the rule.Cal. Code Regs. tit. 8, §3395
Where a person's eyes or body could be exposed to corrosive materials, what must be readily accessible?
- a.Drenching or eye-flushing facilities✓
- b.A first-aid manual kept in the site office trailer
- c.A case of bottled drinking water kept in the truck
- d.An eyewash station at the contractor's main yard
Title 8 requires conspicuous, readily accessible drenching or flushing facilities with clean water. Drinking water, a manual, or a distant eyewash will not give the fast flushing that corrosive exposure needs.Cal. Code Regs. tit. 8, §1512
What does Title 8 §5194 require employers to give employees about the hazardous chemicals they may be exposed to?
- a.A hazard communication program with labels and SDSs✓
- b.One verbal warning given at the time of hiring
- c.A laminated first-aid card for each chemical that is used
- d.Chemical information only after an injury occurs
Employers must provide this information through a hazard communication program, labels and other warnings, and safety data sheets, with training. A single warning, a first-aid card, and after-injury disclosure fall short.Cal. Code Regs. tit. 8, §5194
What does a respirator fit test do?
- a.It rates how efficient the filter cartridge is at stopping dust
- b.It records the medical clearance of the worker
- c.It checks how well a respirator fits one person✓
- d.It measures the lung capacity of the worker
A fit test uses a protocol to qualitatively or quantitatively evaluate the fit of a respirator on an individual. Lung capacity, filter ratings, and medical clearance are different parts of a respiratory program.Cal. Code Regs. tit. 8, §5144
May waste, materials or tools be thrown from a structure to where employees may be below?
- a.Yes, provided a worker calls out a warning first
- b.Yes, provided each piece weighs less than 5 pounds
- c.Yes, provided the drop is under 10 feet in height
- d.Not unless the fall zone is guarded or barricaded✓
Throwing is prohibited toward areas where employees may be unless the fall area is guarded. A shouted warning, a weight limit, and a height limit are not exceptions.Cal. Code Regs. tit. 8, §1513
Scaffolds are required for work that cannot be done safely from permanent or solid construction at least how wide?
- a.12 inches
- b.20 inches✓
- c.36 inches
- d.24 inches
Title 8 requires scaffolds for work that cannot be done safely from permanent or solid construction at least 20 inches wide, unless it can be done from ladders. 12 inches is too narrow, and 24 and 36 inches are not the stated width.Cal. Code Regs. tit. 8, §1637
Which kind of ladder may not be used on a construction job under Title 8?
- a.Double-cleat job-made ladders
- b.Single-rail ladders✓
- c.Single-cleat job-made ladders
- d.Metal ladders with non-slip feet
Single-rail ladders are not permitted. Single-cleat and double-cleat job-made ladders are allowed within their length limits, and non-slip feet are a normal feature.Cal. Code Regs. tit. 8, §1675
What size and spacing do Title 8 railings require for wood posts?
- a.At least 4 by 4 inches, spaced up to 16 feet apart on center
- b.At least 2 by 4 inches, spaced 8 feet apart or closer✓
- c.At least 2 by 4 inches, spaced up to 12 feet apart
- d.At least 1 by 4 inches, spaced up to 10 feet apart
Wood posts must be not less than 2 inches by 4 inches, spaced at 8-foot or closer intervals. A 1-by-4 is too small, and the 10-, 12-, and 16-foot spacings are too wide.Cal. Code Regs. tit. 8, §1620
A worker at grade will work beside exposed, protruding rebar. Up to what height above grade must the exposed ends be guarded against impalement?
- a.4 feet
- b.2 feet
- c.10 feet
- d.6 feet✓
Exposed ends extending up to 6 feet above grade or the work surface must be guarded with covers or troughs. 2 and 4 feet leave tall ends unguarded, and 10 feet is not the stated limit.Cal. Code Regs. tit. 8, §1712
Job-built troughs may substitute for engineered protective covers only when workers are at heights of no more than what?
- a.3 feet above grade or the working surface
- b.12 feet above grade or the working surface
- c.7 1/2 feet above grade or the working surface
- d.6 feet above grade or the working surface✓
The trough substitute is limited to heights not greater than 6 feet. 3 feet is lower than needed, 7 1/2 feet is the fall-exposure limit for protective covers generally, and 12 feet is not stated.Cal. Code Regs. tit. 8, §1712
Who must inspect concrete pump hoses, clamps and pipes before use?
- a.A qualified attendant or operator✓
- b.The finishing foreman, once the pour has finished
- c.The ready-mix truck driver, checking once each week
- d.No one at all, as long as the equipment is new
Hoses, clamps and pipes are inspected before use by a qualified attendant or operator, and damaged items must not be used. A weekly driver check, a post-pour check, and skipping inspection for new gear do not meet the rule.Cal. Code Regs. tit. 8, §1720
A concrete bucket has a hydraulic or pneumatic gate. What does Title 8 require?
- a.A device to prevent accidental dumping✓
- b.A load meter on the crane hoist line
- c.A second gate that is held shut with a pin
- d.A flashing warning light on the bucket
Buckets with hydraulic or pneumatic operating gates need devices that prevent accidental dumping. A pinned second gate, a load meter, and a light do not prevent a release.Cal. Code Regs. tit. 8, §1720
What does Title 8 say about the handles of concrete buggies?
- a.They may not stick out past either wheel✓
- b.They must be at least 6 feet long overall
- c.They must be covered in padded rubber
- d.They must extend past the wheels for leverage
Buggy handles shall not extend beyond the wheels on either side, so they cannot catch on forms or workers. Longer handles, a length minimum, and padding are not what the rule requires.Cal. Code Regs. tit. 8, §1720
May tools, materials or equipment be handled over live overhead high-voltage lines?
- a.Yes, as long as the wires look like they are fully insulated
- b.Yes, as long as it is kept 3 feet above the lines
- c.No, unless the lines are de-energized and visibly grounded✓
- d.Yes, as long as the operator holds a certification
Operation over energized high-voltage lines is prohibited, with the exception of lines that are de-energized and visibly grounded. A small clearance, an operator certification, or insulated appearance do not allow it.Cal. Code Regs. tit. 8, §2946
A ready-mix truck is parked on an incline. What does Title 8 require for equipment parked there?
- a.The parking brake, set firmly on the truck
- b.A warning sign placed at the rear bumper
- c.The front wheels turned toward the curb
- d.Wheels chocked and the parking brake set✓
Equipment parked on inclines needs wheels chocked and the parking brake set, or equally effective mechanical means. A brake alone, a sign, and wheel position do not stop a rolling vehicle if the brake fails.Cal. Code Regs. tit. 8, §1593
What training must flaggers have under Title 8 §1599?
- a.Training in proper flagging before they are assigned✓
- b.No training, as long as they wear a high-visibility vest
- c.A current CPR card instead of a flagging course
- d.A short orientation given after their first shift
Flaggers must be trained in the proper fundamentals of flagging before being assigned. A vest alone, after-the-fact orientation, and a CPR card do not teach flagging.Cal. Code Regs. tit. 8, §1599
While formwork and shoring are being erected, when must the first protective guardrails go in at the perimeter?
- a.Once the first full week of erection is done
- b.After the deck concrete is placed and has set
- c.Right after the supports are in place✓
- d.After the forms have been stripped for reuse
The first set of protective guardrails is installed at the perimeter right after the supporting members are in place. Waiting for concrete, stripping, or a week leaves workers exposed during erection.Cal. Code Regs. tit. 8, §1717
Who may work below a building floor form installation?
- a.Only people installing, removing or inspecting it✓
- b.Any trade at all, once the normal workday has ended
- c.Any worker on the job who is wearing a hard hat
- d.Finishers who are waiting around for the pour
Employees are prohibited from working below a floor form installation except those actually engaged in its installation, removal or inspection. A hard hat, off-hours, and waiting finishers are not exceptions.Cal. Code Regs. tit. 8, §1717