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CSLB B License Exam with 100% Correct Answers
A ladder should extend a minimum of _____ above the top of a trench or excavation. - Correct answer-1' According to OSHA, shoring lumber shall be ____. - Correct answer-Select structural cal/OSHA inspectors cannot, under most circumstances: - Correct answer-Enter a business outside ofnormal business hours.
Every employer is required to post Material Safety Data Sheets: - Correct answer-on each job site Handrails must be installed on all open side of a scaffold if workers are subject to falls of _____ or more.- Correct answer-5'
When boom-type equipment is in operation, how close can it be to high voltage power lines? - Correctanswer-10'
How should you store oily mops or rags at the job site? - Correct answer-In a closed metal container. If a Cal/OSHA inspector is coming to inspect a job site, it is best for the contractor to: - Correct answer-personally walk through the job site and check the work.
In most cases, a crane cannot lift more than ____% of its capacity. Always consult the manufacturer'soperations manual and all applicable codes before using a crane and never attempt to use one without being thoroughly trained and certified to operate the crane. - Correct answer-75% In stable soil, a trench that is ____ or deeper requires shoring. - Correct answer-5 feet On a construction site, flammable liquids can be found in ____ containers. - Correct answer-red Prior to erecting scaffolding, it is best to consult the: - Correct answer-Construction Safety Orders The rule of thumb that is used when digging a trench near another excavation is that the horizontaldistance from the trench to the excavation is no less than: - Correct answer-the depth of the trench
What agency requires Material Safety Data Sheets? - Correct answer-cal/OSHA What is MSDS? - Correct answer-Material Safety Data Sheets What is painted red on a construction site? - Correct answer-Flammable substances What is the danger of LP gas? - Correct answer-it collects near the floor When boom-type equipment is in transit, how close can it be to high voltage? - Correct answer-6' What is the minimum grade lumber which may be used for trench shoring? - Correct answer-#2 Douglasfir
d. the crane operator's manual should be present - Correct answer-C. A and B Which of the following is true about outdoor receptacles used for power tools and equipment? a. They must be isolatedb. They must be properly grounded c. They must conform to UBC standardsd. They must be inspected by a representative from DOSH - Correct answer-b. They must be properly grounded Which of the following is true with regard to rolling scaffolds?a. all wheels must have a lock b. all wheels must be locked when people are on themc. only two wheels must be swivel type d. all of the above - Correct answer-d. all of the above Which of the following should be done when metal scaffolding is constructed over two stories high?a. attach it to the roof of the building b. install a back bracec. make sure that all necessary tools and a bucket of sand are readily accessible d. check that the members are tight and the footing is secure - Correct answer-d. check the themembers are tight and the footing is secure
Which of the following substances must be used in a ventilated area? a. TSPb. insulation c. PVC cementd. asbestos - Correct answer-C. PVC cement
Which of the following types of businesses is not required to keep an annual log of industrial injuries andaccidents?
a. One with no more than 10 employees b. one with no more than 20 employeesc. a family-staffed business d. a labor union - Correct answer-a. One with no more than 10 employees With regards to the treatment of employees, as an employer, you should: - Correct answer-Praise inpublic, criticize in private
If a 10' ladder is used, the bottom of the ladder should be how far from the wall? a. 2 ftb. 25% of the length of the ladder c. 5 ftd. a or b - Correct answer-b. 25% of the length of the ladder
The maximum height of the platform on a ladder jack scaffold is: - Correct answer-16 ft Ladders shall extend at least how far above the level they serve? - Correct answer-3' Wooden supporting members that span between jacks shall be selected lumber as prescribed byCal/OSHA and be of at least _____-inch by _____-inch material. - Correct answer-2x
All blasting operations shall be conducted by an individual who holds a valid: - Correct answer-blastingpermit
A safety belt must be worn by workers who are subject to falls of more than: - Correct answer-15' When a safety inspection is to take place, the contractors on the job are to be given _______ advancenotice. - Correct answer-no
Tailgate safety sessions are to be held at least once: - Correct answer-Every 10 working days
How many wheels on a scaffold should be lockable? - Correct answer-all of them Cal/OSHA requires a built up scaffold over 7.5ft high to have a _____ as a means of stopping falls. -Correct answer-gaurdrail (42-45" high)
Cal/OSHA requires a suspended scaffold over 7.5ft high to have a gaurdrail (36-42" high) and: - Correctanswer-a safety belt attached to a separate anchor point
The Maximum allowed load on a swinging scaffold is: - Correct answer-100lbs/sq.ft. The gaurdrail on a suspended scaffold is _____ above the platform - Correct answer-36"-42" When the toe boards are required on a scaffold, they must extend at least _____ above the platform. -Correct answer-4"
Maximum height of pump jack scaffolding is: - Correct answer-30' Minimum width of a light trades scaffold platform less than 4ft high is: - Correct answer-10" The maximum height of horse scaffold is: - Correct answer-16' Scaffolds may be constructed of which of the following materials? a. woodb. steel c. aluminumd. all of the above - Correct answer-d. all of the above
The length of extended staging on a scaffold shall not exceed 12 feet 6 inches, and the actual mechanicaloverlap between the two halves shall be not less than _____ of the length of the extended staging. - Correct answer-1/ Except as specified in certain other orders, all scaffold planking shall be _____ (nominal) lumber selectedfor scaffold grade plank. - Correct answer-2"x10"
Platform planks on scaffolds must overlap the ledgers at each end by_____. - Correct answer-6" Which of the following scaffolds is not legal?a. horse b. lean toc. stick d. metal - Correct answer-b. lean to Unless a employee is protected by a personal fall system, no one should be allowed to stand or performwork while on the top _____ rungs. - Correct answer-
A HAZ-WOPER (hazardous waste operations) worker must have ______ hours of initial training. - Correctanswer-
A HAZ-WOPER (hazardous waste operations) supervisor must have an additional _____ hours of initialtraining and _____ hours of training every year. - Correct answer-8:
A driver transporting hazardous material must have what type of driver's license? - Correct answer-ClassC Commercial
When a flagman is located on a roadway, the distance between him/her and the warning sign should beapproximately _____ feet for each 10 MPH - Correct answer-
What should you do for a person who is suffering from shock? - Correct answer-elevate the victim's feetand keep victim warm, not hot
c. the load shall be tilted away from the operator d. none of the above - Correct answer-d. none of the above Cal/OSHA regulations state that a single-cleat ladder can be no more than _____ in length. - Correctanswer-30'
A two piece extension ladder with an extended length of 25' shall overlap the two sections no less than:- Correct answer-3'
An extension ladder cannot exceed _____ feet under any condition. - Correct answer-44' What is the maximum height of a portable step ladder? - Correct answer-20' When a ladder is leaned against a wall, the bottom of the ladder should be approximately _____ awayfrom the base of the wall. - Correct answer-1/4 the length of the ladder
When using a ladder to climb up a roof, how far must the ladder extend past the edge of the roof? -Correct answer-3'
When using a two-section extension ladder the minimum lap should be _____ for ladders with a workinglength up to 33', and _____ for ladders with working length 33-44' - Correct answer-3':4'
When using an extension ladder on a wall that is twenty feet high, the bottom of the ladder needs to behow far away from the bottom of the wall? - Correct answer-5'
Who is responsible for the safety of employees on a job site? - Correct answer-employer A DOSH permit is required for any trench or excavation into which workers will descend _____ or morefeet below the surface. - Correct answer-
How many workers are allowed between the falls of a swing stage? - Correct answer-
How high can scaffolding be erected before an inspection is required? - Correct answer-36 ft How many workers can b e on a window jack scaffold at one time? - Correct answer- A worker is injured on the job: blood is gushing from his head. What should be done until medical helparrives? - Correct answer-apply direct pressure to the wound
Free-standing bricks shall not be stacked higher than _____ ft - Correct answer-7' Manually handled lumber may not be stacked higher than _____ ft. But if a mechanical means is used,then never higher than _____., - Correct answer-10:
What is the maximum slope of a handicap access ramp? - Correct answer-1:
If unused mortar stiffens due to hydration of cement, what must you do? - Correct answer-Discard themortar
What minimum time must you wait before caulking or grouting new tiles? - Correct answer-24-48 Hours How long should you wait before installing tile on a shower pan? - Correct answer-24 Hours Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greaterthan 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: - Correct answer-Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each light? - Correctanswer-35V
How should you clear the roots from a construction site? - Correct answer-Clear roots to 12" belowgrade.
Dividing watts by amps gives you: - Correct answer-Volts The most frequent on-the-job roofing accidents are: - Correct answer-Falls Which of the following is NOT a type of wood block flooring? A. ParquetB. Wood Mosaic C. Wood TileD. All of the above. - Correct answer-Wood tile
Lightweight concrete is best used for: A. Curb and Gutter B. Second floor deckingC. First floor slab on grade D. Footings - Correct answer-Second floor decking The tool used to carry grout needed to patch a small hole is a: A. HawkB. Poling board C. Spot boardD. Mason's scutch - Correct answer-Spot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast ironB. Schedule 40 ABS DWV C. Extra strength vitrified clayD. Copper - Correct answer-Copper
Where do you need a fire wall? A. Between a living room and a bedroom B. Between a bedroom and a bathroomC. Between a kitchen and a bath D. A separation wall between a dwelling and an attachment - Correct answer-A separation wall betweena dwelling and an attachment.
What is the minimum clearance between rough ground and untreated subfloor joists? - Correct answer-18 inches
Who may remove asbestos? - Correct answer-Contractor with Asbestos Certification on license. Which of the following is NOT likely to be found in significant proportions in granular soil? A. GravelB. Sand C. SiltD. Clay - Correct answer-Clay
Stiles and rails are used on which of the following? A. Furred walls
If you are a general contractor, you should call a specialty contractor when: - Correct answer-Youencounter an unfamiliar trade.
When a stairway serves a public building, what is the minimum number of steps for which a handrail isrequired? - Correct answer-Two
What is the minimum underlayment for asphalt shingles? - Correct answer-15 pounds How long should you wait before sealing new tile work? - Correct answer-2 weeks When do you install insulation? - Correct answer-After the electrical and plumbing are approved. When do you NOT need an exhaust fan in a bathroom? - Correct answer-When there is a window in thebathroom.
What is a bush-hammer used for? - Correct answer-Roughen surface of hardened concrete. When you say a wall is perfect it is: - Correct answer-Both plumb and straight. The purpose of a batter board in concrete work is: - Correct answer-Support layout strings whenlocation foundations.
What is the difference between a hip jack rafter and a common rafter? - Correct answer-A hip jack runsfrom the top plate to a hip rafter, but a common rafter runs to the ridge board.
When should you float a concrete surface? - Correct answer-As soon as the water sheen evaporates When installing drywall screws you should: A. Countersink
B. Drive just below the face of the board C. Leave slightly above the surfaceD. Use the highest torque setting - Correct answer-Drive just below the face of the board without breaking the paper. Before placing tile with mastic, you should: - Correct answer-Seal the surface. At an excavation, an Underground Service Alert (U.S.A) marking on the dirt that uses red paint or chalkmeans: - Correct answer-Electric power
How many diameters is the minimum lap (overlap) between sections of rebar in reinforced masonry? A. 7 B. 12C. 24 D. 30 - Correct answer-30 diameters What is the minimum length of a handrail extension that is required for a stairway? - Correct answer-12" When may a contractor work alone on a roof at a construction site? - Correct answer-Never A Freon recovery system is required when: A. Replacing a burnt out rotor in a hermetic unitB. Overhauling a rooftop A/C unit C. Scrapping an old refrigeration unitD. All of the above - Correct answer-All of the above
Which of the following would you use to install roofing tiles?
A. Rounded gravelB. Crushed rock C. Sand or loamy sandD. Water-logged soil or submerged unstable rock - Correct answer-Crushed rock
What is the correct exposure for typical hip tiles? - Correct answer-6" Hip and ridge tiles are alwaysinstalled with a 6" exposure.
Which type of window requires tempered glass? A. SkylightB. Sliding Glass Door C. Exposed top edge is less than 36" from the floorD. Exposed bottom edge is more than 18" from the floor - Correct answer-Sliding glass door.
The correct sequence for installing vapor barrier is: A. Siding-shear panel-paper B. Shear panel-paper-sidingC. Paper-siding-shear panel D. Shear panel-siding-paper - Correct answer-Shear panel-paper-siding What is the slope in degrees of a roof with a rise of 12 and a run of 12? A. 22.5 degreesB. 45.0 degrees C. 50.0 degreesD. 90.0 degrees - Correct answer-45 degrees.
How deep must electrical be in a public area if the conduit is PVC and there is no vehicle traffic? -Correct answer-18"
In electrical work, the green wire is the: - Correct answer-Grounding conductor What is the longest length ladder that Cal/OSHA approves? - Correct answer-44' is the longest ladderCal/OSHA approves
Under what condition can you add one additional layer to existing asphalt shingles on a roof? - Correctanswer-If the roof is less than three layers.
How should a residential water heater be protected from earthquakes? - Correct answer-It should beattached to a wall.
You would use a 1.5 GPM fixture when: - Correct answer-You want to conserve water The best way to handle an I-beam is with a: - Correct answer-Nylon strap To determine if a wall is plumb, us a: - Correct answer-Level and straight edge The minimum required thickness for tempered glass used in residential shower doors is: - Correctanswer-1/8 is the minimum required thickness
How many board feet are in a 5"D x 6"W x 20'L beam? - Correct answer-50 board feet. Thickness X Width X Length in Inches dived by 144. When nailing roofing, the railheads:
