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contractor license exam 100 question

contractor license exam 100 question


1. How many apartments, dwelling units, or portion of a
    building define an "apartment house"?

    (a)  8 units

    (b)  4 units

    (c)  3 units

    (d)  2 units

2. "Dwelling" means any portion of a building other than an
   apartment or hotel that contains less than how many dwelling
    units?

    (a)  2 units

    (b)  3 units

    (c)  4 units

    (b)  20 units

3. There should be at least one room in every dwelling unit,
    which shall not have less than, how many square feet of
    floor area.

    (a)  120 square feet

    (b)  50 square feet

    (c)  90 square feet

    (d)  180 square feet

4. The requirements specified in the state housing laws are all:

    (a)  optional

    (b)  maximum

    (c)  minimum

    (d)  recommended

5. Which of the following should you contact before beginning
     work along railroad tracks?

    (a)  the local city or county engineer

    (b)  the railroad agent at the nearest depot

    (c)  the California Public Utilities Commission

    (d)  the Railroad Engineering Department

6. Every hallway and corridor for an apartment house,
    hotel, or dwelling, shall have a minimum ceiling height of:

    (a)  7-1/2 feet

    (b)  8-1/2 feet

    (c)  7 feet

    (d)  8 feet

7. "Hotel," defines any building containing guest rooms in
     excess of:

    (a)  3 guest rooms

    (b)  4 guest rooms

    (c)  5 guest rooms

    (d)  10 guest rooms

8. If you discover a measurement error in a project plan, a job
     you contracted and have been working on, what should you do?

    (a)  notify the owner within 20 days

    (b)  before doing any work to the error, notify the architect

    (c)  correct the error according to your own professional
                           judgment

    (d)  record a mechanics' lien within 60 days

9. The minimum uniform load support capability in residential
     buildings are:

    (a)  30 pounds per square foot

    (b)  20  pounds per square foot

    (c)  8O  pounds per square foot

    (d)  40  pounds per square foot

10. The minimum live load must be sustained by a roof with
       a slope less than 4 in 12, how many pounds
       per square foot:

    (A)  5 pounds per square foot

    (B)  10  pounds per square foot

    (C)  15  pounds per square foot

    (D)  20   pounds per square foot

11. When there is a heat loss through windows and doors it is
       known as:

    (a)  transmittance

    (b)   infiltration

    (c)  convection

    (d)  conduction

12. Material is usually measured by_____ when referring to
      excavation.

    (a)  tons

    (b)  square feet

    (c)  cubic feet

    (d)  cubic yards

13. The square inches of a circle with a 10-inch diameter is:

    (a)  79    square inches

    (b)  99   square inches

    (c)  157 square inches

    (d)  52   square inches

14. When planning work within the railroad right of way, how
      much advance notice is required?

    (a)  7 to14 days

    (b)  24 hours

    (c)  48 hours

    (d)  none is required

15. How close can a vehicle be parked to a railroad track?

    (a)  8-1/2 feet from the center line of the track

    (b)  6 feet from the nearest rail

    (c)  7-1/2 feet from the nearest rail

    (d)  even with the edge of a standard boxcar

16. When working on masonry, what is the best kind of
      drill bit to use?

    (a)  high-carbon steel bit

    (b)  auger-type bit

    (c)   carbide-tipped bit

    (d)  all of the above

17. Who sets the standards for both construction materials and
      practices?

    (a)  ANSI (American National Standards Institute)

    (b)  ASTM (American Society for Testing and Materials)

    (c)  UL (Underwriters' laboratories)

    (d)  UBC (Uniform Building Code)

18. Inspections determine if work has been done according to:

    (a)  plans

    (b)  code

    (c)  the contract

    (d)  specifications

19. What should a wooden girder be fastened with when
       installed on top of a steel post?

    (a)  a saddle

    (b)  a flat screw

    (c)  nails

    (d)  a cap screw

20. What should a steel girder be fastened with when
       installed on top of a wood post?

    (a)  channel cap

    (b)  nails

    (c)  screws

    (d)  saddle

21. What method should be used when attaching sill plates to
       footings?

    (a)  nailed

    (b)  screwed

    (c)  glued

    (d)  bolted

22. Your plans specify that the joists should be 36 inches
      on center when building a deck. What plywood sheathing
      would be best?

    (a)  48/12 interior plywood

    (b)  48/24 exterior plywood

    (c)  36/12 exterior plywood

    (d)  32/16 interior plywood

       

23. A one-car garage door opening has a standard width of?

    (a)  7 feet

    (b)  8 feet

    (c)  9 feet

    (d)  10 feet

24. According to the UBC, the minimal width of a footing
       for a 3-story building is?

    (a)  12 inches

    (b)  16 inches

    (c)  18 inches

    (d)  26 inches

25. What is cap flashing used on?

    (a)  a valley

    (b)  a ridge

    (c)  a footing

    (d)  a chimney

26. In public areas, handicapped accessible doorways
      are required a width of no less than

    (a)  4 feet

    (b)  3 feet

    (c)  32 inches

    (d)  29 inches

27. In a commercial building, a metal window frame
       requires kraft paper to be placed:

    (a)  over the frame and over lath

    (b)  under the frame and over lath

    (c)  over the frame and under lath

    (d)  under the frame and under lath

28.   "Dead load" means: The vertical load due to the
         weight of a building, "live load" means:

    (a)  an additional load due to use and occupancy

    (b)  "live load" is an electrical term, not a structural term

    (c)  addition load due to the stress of wind and snow

    (d)  additional load due to wind or snow

29. The maximum possible strength when laying plywood
       would be?

    (a)   diagonally to the joists

    (b)  parallel to the joists

    (c)  perpendicular to the joists

    (d)  at 55 degrees off parallel to joists

30. When the water level gauge on a steam boiler reads "empty"

    (a)  add water carefully

    (b)  it will shut off automatically.

    (c)   "shut off the boiler"

    (d)  recalibrate the gauge then test for an accurate reading

31. Cabinets should have a standard depth:

    (a)  10 inches

    (b)  18 inches

    (c)  12 inches

    (d)  26 inches

32. When cutting with a portable circular saw, the finished
      side should be:

    (a)  down

    (b)  up

    (c)  both sides are finished

    (d)  never cut finish plywood with a portable circular saw

33. The standard width of an interior door?

    (a)  3 1/2 feet

    (b)  3 feet

    (c)  2 feet 8 inches

    (d)  2 1/2 feet

34. A

    (a)  a circular saw

    (b)  a jigsaw

    (c)  a hacksaw

    (d)  none of the above

35. What does "the run" mean in roof framing?

    (a)  the distance between the double plate and the outside edge.

    (b)  the angle that the roof surface makes

    (c)  a 12 inch unit

    (d)  an imaginary line going lengthwise from the ridge.

36. A well-known force applied to concrete is?

    (a)  stress

    (b)  pressure

    (c)  tension

    (d)   compression

37. ASTM (The American Society for Testing and Materials) for C31
       concrete, allocates the standards for:

    (a)   compression testing

    (b)  slump testing

    (c)  pressure testing

    (d)  consistency testing

38. When pouring concrete underwater, the process is called?

    (a)  gunite

    (b)  cold-pour

    (c)  tremie

    (d)  aquaform

39.

    (a)  repair defects in the tie-bar

    (b)  hold rebar in place when pouring

    (c)  increase the strength of the bars

    (d)  to determine the square footage

40. When concrete has just been poured, you remove the excess
      concrete by?

    (a)  floating

    (b)   screeding

    (c)  trowelling

    (d)  hatching

41. When concrete has been mixed it must be on site and
      poured in no less than:

    (a)  60 minutes

    (b)  90 minutes

    (c)  one day

    (d)  two hours

42. What would be the advantage in adding calcium chloride to a
      mixture of cement?

    (a)  it increases the setting

    (b)  it adds color to the concrete

    (c)  it dissolves the aggregate when added

    (d)  it reduces the setting time

43. The flat chute is not the best tool to use for placing concrete
       because:

    (a)  it causes segregation in the mix

    (b)  it must have an extension

    (c)  does not pour accurately

    (d)  the height of the discharge increases

44. When do you use type III

    (a)  when the climate is hot

    (b)  early strength is required

    (c)  when the heat of hydration is necessary

    (d)  in moderate heat of hydration


     Copyright © 2005 ,  11/09/05   
       

 
1       

45. When dealing with concrete, the slump test reports:

    (a)  its consistency

    (b)  its potential strength

    (c)  its alkali level

    (d)  all of the above

46. If you have a concrete slab "1ft x 15ft x 15ft," How many cubic
      yards of concrete are there?

    (a)  20

    (b)  8.3

    (c)  25

    (d)  35

47. A common size of a concrete mixer is:

    (a)  2 cubic feet

    (b)  8 cubic yards

    (c)  16 cubic feet

    (d)  32 cubic feet

48. At which angle degree does a hooked concrete reinforcing bar
      bend?

    (a)  40, 90, and 180 degrees

    (b)  60,120,  and 180 degrees

    (c)  90,120,  and 180 degrees

    (d)  90,135,   and 180 degrees

49. When applying drywall, what "type of nail" is preferred
      by the state:

    (a)   deformed or chemically etched shank

    (b)  cement or concrete coated

    (c)  rust resistant or water repellent

    (d)  plasterboard nail

50. If the ground is spongy after excavation is complete, you should:

    (a)  compact the soil

    (b)  pour the foundation slab before the earth dries completely

    (c)  wait for the ground to dry completely

    (d)  lay in gravel

51. When digging a trench along a roadside in a populated
      area, what machine is best?

    (a)  front-end loader

    (b)  power shovel

    (c)  trencher

    (d)  backhoe

52. How many 90-degree bends are allowed in conduit between
      outlets

    (a)  3

    (b)  maximum 4

    (c)  only 2

    (d)  no more than 6

53. When splicing an outlet how many extra inches of
      wire should be available?

    (a)  3 inches

    (b)  4 inches

    (c)  5 inches

    (d)  6 inches

54. The maximum temperature at which (type THW)
      conductors are used?

    (a)  75 degrees Centigrade

    (b)  60 degrees Centigrade

    (c)  85 degrees Centigrade

    (d)  100 degrees Centigrade

55. What type of lamp, does a "40W/T12/RS/CW" specification
      define?

    (a)  a 40 watt, bi-pin, rapid start, cool white, fluorescent lamp

    (b)  a 40 watt, type 12, reflector spot, clear white, incandescent lamp

    (c)  a 40 watt, single-pin, relay start, code white, fluorescent lamp

    (d)  a type 12, medium base, recessed spot, clear white, incandescent lamp

56. Which of the following numbers are the smallest wire size?

    (a)  1

    (b)  6

    (c)  10

    (d)  0

57. When using a group of switches, where a switch controls
      several rows of fluorescent fixtures, what switches should
      be used.

    (a)  mercury switches

    (b)  "T" switches

    (c)  switches at twice the required load

    (d)  knife switches

58. An Erickson coupling is used for?

    (a)   connecting two sections of rigid conduit when they cannot be turned

    (b)  joining sections of EMT

    (c)  connecting EMT to flexible conduit

    (d)  a substitute for threads

59. The problem with plastic coated non metallic
      electrical cable it is

    (a)  hard to strip

    (b)  not able to be embedded in masonry

    (c)  subject to mechanical damage

    (d)  not available with three wires

60. Which wire carries the load in a two-wire circuit?

    (a)  the ground wire

    (b)  the black wire

    (c)  the white wire

    (d)  all of the above

61. A 240-volt, three phase system is most often used for:

    (a)  lighting

    (b)   industrial motors

    (c)  processing units

    (d)  none of the above

62. What is the advantage of non metallic cable compared to BX
      cable?

    (a)  BX cable has three wires

    (b)  non metallic cable is moisture-resistant

    (c)  non metallic cable is not subject to mechanical damage

    (d)  non metallic cable can be placed in masonry

63. Smoke detectors should be installed

    (a)  above every door opening

    (b)  as close as possible to the center of a ceiling

    (c)  at the high end of a sloped ceiling

    (d)  b and c

64. Which design type would be the best when installing
      a forced air heating system in a crawlspace or attic?

    (a)  an upflow highboy

    (b)  a downflow model

    (c)  a horizontal furnace

    (d)  an upflow lowboy

65. On a forced-air heating system ,should the warm air
      registers be near:

    (a)  the windows and close to the ceiling

    (b)  the interior walls and close to the floor

    (c)  anywhere close to the ceiling

    (d)  the outside walls and close to the floor

66. How do you determine which size air conditioning
      unit to use for a house?

    (a)  the total window area

    (b)  the total interior wall area

    (c)  the total exterior wall area

    (d)  the type of roof

67. The maximum horizontal footage permitted for a
      3 inch vent pipe?

    (a)  148 feet

    (b)  212 feet

    (c)  24 feet

    (d)  100 feet

68. Urethane foam insulation has it's drawbacks:

    (a)  it is flammable

    (b)  it is only available in boards

    (c)  it has a low R value

    (d)  all of the above


     Copyright © 2005 ,  11/09/05   
       

        

69. Laying batt insulation in studded walls should:

    (a)  be butted up against any vent openings

    (b)  have insulation at least 1 inch from any vent openings

    (c)  be insulated at least 12 inches away from a vent openings

    (d)  be laid over the vent openings

70. Batt insulation under a floor and over a crawl space should be
      placed:

    (a)  under the joists with vapor barrier between the insulation and the floor

    (b)  between the joists with vapor barrier between insulation and crawl space

    (c)  over the joists with vapor barrier between the insulation and crawl space

    (d)  between the joist with vapor barrier between the insulation and the floor

71. The use of cellulose insulation is a problem because:

    (a)  without proper treatment, it is a fire hazard

    (b)  it is difficult to install

    (c)  it has a low R-value

    (d)  it is very costly

72. What are used for lintels to support block over openings
      when dealing with concrete block foundation walls?

    (a)  metal rods

    (b)  metal lath

    (c)  steel angles

    (d)  all of the above

73. Why would you leave the vertical steel sticking out
      of the top after grouting a foundation wall?

    (a)  to count the bars

    (b)  to tie in the upper tier

    (c)  rebar should not extend above the top

    (d)  the inspector needs to see that the wall is reinforced

74. On masonry, the best kind of drill bit is?

    (a)  high-carbon steel bit

    (b)  auger-type bit

    (c)   carbide-tipped bit

    (d)  none of the above

75. You installed a concrete block masonry wall in
      dry weather.  you should:

    (a)  wet the blocks while installing

    (b)  never wet the blocks

    (c)  wet the blocks after installing

    (d)  wet the blocks before installing

76. Before any grout is poured in a hollow unit masonry wall,
       an inspector checks to make sure that:

    (a)  rebar is in place

    (b)  no obstructions are in the cells

    (c)  it is level and plumb

    (d)  all of the above

77. What type mortar option is best for interior non
      load bearing walls?

    (a)  K = low compressive and bond strength or N = medium strength, high exposure

    (b)  M = high compressive and bond strength or S = medium high compressive and bond strength

    (c)  N = med. strength, high exposure or O = medium low compressive strength limited exposure

    (d)  S = med. high compressive and bond strength or N = medium strength, high exposure

78. What is terrazzo and what is it used for?

    (a)  an Italian style terrace for exterior exposure

    (b)  a brand of stucco for exterior walls

    (c)  marble chips are embedded in mortar, used for flooring

    (d)  a brand for a form of BX cable used for refrigeration

79. When should clay brick require wetting?

    (a)  when water absorbs within one minute of applying test droplets

    (b)  if it flakes due to lack of moisture

    (c)  clay brick does not require wetting

    (d)  only concrete brick requires wetting

80. "Alligator" or crawl are terms when paint reacts from:

    (a)   applying a hard finish coat over a soft priming surface

    (b)  applying a soft finish coat over a hard priming coat

    (c)  applying paint to a raw surface

    (d)  moisture in the air

81. The next step after sandblasting a metal building?

    (a)  wash with an alkaline cleaner

    (b)  paint a sealer

    (c)  paint the same day

    (d)  all of the above

82. When painting with latex, paint brushes should
       be cleaned with:

    (a)  turpentine

    (b)  soap and water

    (c)  solvent

    (d)  thinner

83. When installing wallpaper your best surface is:

    (a)  a sanded finish

    (b)  plywood

    (c)  metal

    (d)  plaster

84. Which protective coating is the most scratch
      and chip resistant?

    (a)  lacquer

    (b)   polyurethane

    (c)  latex paint

    (d)  oil-based paint

85. What is a notable drawback of a natural bristle brush?

    (a)  it leaves brush strokes

    (b)  it has flag ends

    (c)  it does not last as long as synthetic bristle brushes

    (d)  it's hard to clean

86. Excavation for drainage pipe may be done at what
      distance from any footing?

    (a)  8 feet

    (b)  3 feet

    (c)  no less than the depth of the excavation

    (d)  as far from the edge as the height of the wall

87. Is it possible for PVC piping to go through or be
      embedded in concrete?

    (a)  no, rigid copper pipe only

    (b)  no, galvanized pipe only

    (c)  yes

    (d)  yes, but only outside the building

88. For stucco, the required setting time between the
      (scratch) or setting coat and the brown coat is:

    (A)   no more than 9 days

    (B)   7 days

    (C)   4 days

    (D)   2 days

89. What type of plaster should you use when working
      with a surface such as concrete:

    (a)  neat

    (b)  bond

    (c)  wood fiber

    (d)  gauging

90. The length used for sizing water piping, is measured
       from the located water meter to:

    (a)  a remote outlet

    (b)  the first branch

    (c)  the water heater location

    (d)  the first flushometer branch

91. Cleanouts under floors shouldn't be more
      than ___ feet from a crawl hole or access door

    (a)  5 ft

    (b)  10 ft

    (c)  15 ft

    (d)  20 ft

 


     Copyright © 2005 ,  11/09/05   
       

 
1       

92. The drain and sewer for a residential building should be:

    (a)  on the same lot

    (b)  below the finish grade

    (c)  inside only

    (d)  outside only

93. What do you join a copper and galvanized pipe with?

    (a)  threading them together

    (b)  a brass adaptor fitting

    (c)  soldering them together

    (d)  the scoring of the copper pipe

94. You must test waste and vent piping with a:

    (a)  5 foot head of water

    (b) 10 foot head of water

    (c)  running test

    (d)  any of the above

95. Gas pipe which joins more than one building on any
      premise must have:

    (a)  individual meters

    (b)  earthquake valves

    (c)   separate shutoff valves

    (d)  only one meter

96. What should you connect different sized pipes with a?

    (a)  bell reducer

    (b)  union

    (c)  bushing

    (d)  nipple

97. What valve should be used to connect a main to
      a residential system if the pressure in a water supply
      main is over 80 pounds (psi)?

    (a)   reducing valve

    (b)  check valve

    (c)  globe valve

    (d)  gate valve

98. When on an asphalt shingle roof, what is the best kind
      of shoe to wear?

    (a)  steel-toed boots

    (b)  leather-soled boots

    (c)  knee-high boots

    (d)   rubber-soled shoes

99. The point where the roof of a gable dormer meets
       the main part of the roof is called a ?

    (a)  ridge

    (b)  hip

    (c)  dormer

    (d)  valley

100. When covering a shingle roof, what is the first step?

    (a)  install the underlayment

    (b)  install valley flashing

    (c)  install eaves flashing along the rakes

    (d)  seal the wood sheathing

101. How are asphalt shingles laid?

    (a)  from both rakes to the center

    (b)  from right rake to left rake

    (c)  from the eaves to the ridge

    (d)  from the ridge to the eaves

102. Liquid solar installation may result in "freezing up"
        due to:

    (a)  leaky gaskets

    (b)   inadequate pipe insulation

    (c)  poorly soldered joints

    (d)  use of inferior materials

103. In liquid solar collectors small passages may:

    (a)  leak

    (b)  act as a pressure drop component

    (c)  make it easy to drain

    (d)  become plugged

104. The water storage tank in a thermosiphon solar
         heating system is located:

    (a)  no more than 1 foot above the collector

    (b)  no more than 2 foot above the collector

    (c)  only according to the season

    (d)  2 feet below the collector

105. Individual collectors assembled in a group:

    (a)  must be vented to filling

    (b)  must be soldered to piping

    (c)  must be fitted by individual mountings

    (d)  must be attainable for replacement

106. Solar collectors on the ground must be:

    (a)  set on concrete pads

    (b)  laminated

    (c)  facing the sun

    (d)  set on secure palettes

107. For billing purposes structural steel is ordered by the:

    (a)  lineal foot

    (b)  pounds.

    (c)  bundle

    (d)  100 pounds

108. On a shower floor the ceramic tile should be installed:

    (a)  to a wood subfloor

    (b)  to a concrete subfloor

    (c)  to a portland mortar bed

    (d)  b or c

109. With 120 tiles per box, how many boxes of tile will be
        needed to cover a wall 6 feet by 10 feet using 6 inch
        square tiles :

    (a)  2 boxes

    (b)  4 boxes

    (c)  6 boxes

    (d)  8 boxes


       

 


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