General Flashcards

(101 cards)

1
Q

Method of designing asphalt mixes

A

Marshall method- Hveem method - Hubbard field method

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2
Q

Each KIPs stands for kilo pounds

A

1 kip= 1000 pounds

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3
Q

Instrument used to measure true power

A

Wattmeter

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4
Q

Determine type of undisturbed substrate underlying soil the most reliable method is:

A

Test pits

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5
Q

In grading for a curb the grade setter marks “2 TBC C-1.00” What does this mean?

A

2 feet from top back of curb cut one feet

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6
Q

Most common structural steel welding

A

Metal arc welding

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7
Q

Warm air mowing toward cold air in a raceway

A

Condensation

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8
Q

Normal concrete strength in 28 days?

A

2,000 PSI

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9
Q

What type of surface not use latex paint?

A

Smooth gypsum board-
PVA (polyvinyl acetate) is recommended for drywall because it doesn’t raise the nap

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10
Q

Soil support 2000 pounds per square foot- building column exerts 50 KIP what is the minimum measurement

A

50 kips= 50,000
50,000/2000=25
Footing is square the length of the 25 square feet is 5 feet

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11
Q

What is the advantage of using armor cable over non metallic cable

A

Resists breakage by mechanical causes

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12
Q

Name of the formula that relates the pressure distribution between foundation and the underlying soil

A

Boussinesq - it’s French mathematician and physicist

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13
Q

Tractor for finish grading

A

Motor grader

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14
Q

What would be associated with low shrinkage concrete?

A

Granite aggregate

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15
Q

Roadway Crown

A

Area between the center line of a road and the curb or shoulder that runs parallel to the

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16
Q

Load testing a concrete structure, how long should the test be conducted

A

24 hours

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17
Q

Degree of bend is not allowed in a horizontal bar with hook in a beam

A

90 degrees

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18
Q

Advantage of steel over wood

A

Nominal Shrinkage

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19
Q

Steep near vertical slope along the margin of a landslide is called

A

Scarp

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20
Q

Deep foundation

A

Caisson

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21
Q

Spread footing concept

A

Continuous footing

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22
Q

Maximums slope of an excavation in hillside

A

2 to 1

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23
Q

Working with transit to find elevation, you take the height of the instrument and

A

Subtract

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24
Q

Concrete T Beam , the width of slab effective as a T beam flange may not exceed ——— the span length of the beam

A

1/4

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25
Corrected moment within any structure
Equal and opposite
26
What is 2% of 15
15x0.02 =0.3
27
Increase the slump of concrete 3" to 4"
Increase water - cement ratio
28
3/4 feet is what percent of 3 feet
25% 0.75 feet / 3 feet =0.25 = 25%
29
Test would indicated the present of harmful vegetable matter
Colorimetric test
30
Class A import soil
Approved by engineer
31
Ball penetration test is determine or "kellyball"
The consistency of concrete It used in addition to or in place of the slump test
32
Finish grade allowable tolerance
0.08 feet
33
Hotter the temperature for brick is
Greater the resistance to weather conditions
34
Minimum width of a temporary traffic lane
10 feet
35
Surface of the asphalt has dull appearance, what is indicated?
Needs more oil
36
When asphalt is too cool, it's look like
Stiff appearance
37
Standard for highway safety as it relates to flagger signals come from California
Department of transportation- Caltrains
38
Specifications require a sump how far should the pipe extend into the manhole?
To the inner edge of the manhole wall
39
Trench wall are too loose or soft for shoring the wall must be sloped a minimum of:
3/4:1 Every foot the trench rises vertically the backhoe must move 3/4 feet horizontally
40
41
Bucket line trench
Can go closer to pipe
42
Where do you set a string line before paving with asphalt?
6" offset from center line of roadway String line is actually not needed at center line because the pavement there is placed flush against the first pass
43
After paving one side of road with asphalt, where do you locate the string line for the center longitudinal joint?
Not necessary Because the pavement there is placed flush against the first pass
44
Flagger should stand within -------of the work area with -------- flag
100 feet-----18 inches
45
Type A warning lights are;
Low intensity flashing warning lights
46
Type B warning lights
High intensity Flashing warning lights
47
Type C warning light
Steady burn lights
48
Rock in an aggregate base have come to the top with no fines to bind them
Bony grade
49
When ripping extremely hard and rocky ground with a dozer, which should you do?
Rip from North to South
50
Backfill asbestos cement pipe
Sand
51
Existing concrete must be removed to a depth of ------- beneath finish grade
3 feet
52
Breaking concrete for use in fill, what is the maximum size
6"
53
Paving a cul de sac
Second pass should overlap slightly with the first pass
54
Best equipment for trenching very loose or soft soil
Dragline
55
A road grade falls 10 feet over a horizontal distance of 20 feet. What is the slope?
2:1 In road surveying , slopes are defined as the ratio of horizontal to vertical 20feet/10feet =2/1 =2:1
56
Paving an asphalt road in one pass, how proceed?
Start rolling on low side and progress toward high side
57
Removing and dispose of concrete from existing road how far from pipeline or tree we have to remove
10 feet
58
A builder transit usually doesn't have a
Compass
59
Placement of open web joist work is best done by
Ironworker
60
Material used for Galvanized
Zinc
61
Why is rebar tied?
Hold in place during a pour
62
If a pipe cannot be connected properly, who should be contacted?
Engineer
63
If a crew hits a utility line while dragging what should be done?
Clear area,keep distance, be mindful of substances, contact utility affected, notify supervisior
64
What is the recommended placement of door hinges on flush doors?
Middle hinge is centered between
65
The best saw to use when cutting with the grain is a ?
Riosaw
66
How long after unloading material can you leave them in the street,road or highway?
5 days
67
The best equipment to use when removing concrete roadway is a:
Crawler tractor
68
Running a sewer line
Downstream to upstream
69
Driving nails and find they have a tendency to split the boards, what alternative type of nail might you use to prevent the splitting?
Shingle
70
What is typically done to the sub base in asphalt concrete paving work?
Compacted
71
When fine grading is required, the grading engineer
Replace the lath with hubs
72
Type of welding is used when erecting structural steel
Shield metal arc Gas metal arc Submerged arc
73
Safe distance requirement from overhead electrical lines energized between 600 V & 50,000 V-----// for boom type lifting & hoisting equipment when not in use.
6 feet
74
Name a compaction test
Sand cone test
75
Surveying a stake marked with an arrow, without a circle through the tail, indicated:
Grade has not been reached
76
Breakup of the surface of a concrete road is known as
Spalling
77
Minimum required headroom between the nose of any stair and the soffit above is:
6 feet 8"
78
Minimum dimension of a wooden mid rail where a railing is required for a raised floor,ramp, or platform
2x4 inches Mid rail is required in construction it should be in the half way between top rail and floor surface. All wooden parts used for railing assemblies must be select lumber
79
Where toe boards are required in a constitute, what are the minimum dimensions?
4" high off the platform with no more than 1/4" gap Title 8 specifies that there should be no more than a 1/4" gap between the top of the platform & the bottom of the toeboard. Additionally if materials will be piled high enough to come near the top of a toeboard a screen or panels at least up to the mid rail must be used.
80
1-Type of lumber for construction railing - mid rails, post and toe boards? 2-Top rails must be?
1- Select lumber 2-Smooth
81
Underground storage tank is to be permanently closed, what material should it be filled with?
Solid material Once a thank has been filled with inert solid " interted" the fill pipes have been sealed or the piping removed it is called "Decommissioned"
82
What hazardous substance was once applied to wood piers or piles in marine environments, but is no longer allowed where exposed to salt water?
Creosote Creosote may still be used where exposed to earth and fresh water
83
What do you line an old underground storage tank with?
Special coating or bladder The type of lining material depends on what substance the tank will contain. If the tank is steel, the inside must be sand blasted clean, inspected and certified as suitable for the coating operation
84
How much concrete needed for 25' by 12' and 4" thickness and 10% waste
1,100 cubic feet-40.8 cubic yard 4/12=0.333 0.33x12x250=1000 cubic feet 1000x0.10=100 1000+100=1,100 cubic feet 1100 cubic feet / 27=40.741 cubic yard
85
Cement truck with 9 yard of concrete is pouring 4" slab. How many square feet will it cover?
729 square feet 4/12=0.333 yard 3x3x3=27 cubic feet 9x27=243 243/0.333=729.73
86
1 yard concrete
27 cubic feet
87
1 cubic foot of asphalt road surface wight is approximately
150 pound
88
Paving slang
AC= Asphalt Concrete AB = Aggregate Base ASB= Aggregate Sub Base
89
Roadway 32' 2" AC 2.5" AB 4.5" ASB
0.9 cubic yard 2"+2.5"+4.5"=9” 9/12=0.75 0.75x 32 feet=24 cubic yard 24/27=0.889 0.889 cubic yard of dirt to be removed per linear foot of roadway
90
Handrail are required on a ramp that exceeds a slope of
1:15 (6%)
91
Guardrail is required if ramp has open sides at a hight of over
30" This also includes unenclosed roof and floor opening, porches, stairways and landings
92
Minimum headroom that a stairway should provide?
6'8" Measured from the tread nosing to the soffit
93
Someone operating machine unsafe manner and boss or contractor not here
Tell the Forman Forman responsible for operating true
94
Problem to placing a foundation on clay
Characteristics change when wet
95
What kind of foundation is appropriate for a clay base?
Piles Piles foundation bypasses the clay The piles pass the clay and go to stable soil or rock Multiple piles connect to a pile cap they interfaces them to a column or wall above. Using piles this way is called an underpinning
96
Drilling rock, how often should you blow out the hole?
As often as necessary to keep the bit from overheating See the answer at like this question might be don't need blow because the has issue for eyes hazard and might not effective to cleaning a drill hole.
97
Place a clay sewer line in the same trench with a water utility would like be approved?
Lay the water line on an undisturbed shelf that is higher than the sewer line and to one side of it. *Ordinarily clay sewer line must be run in separate trenches from water pipes
98
Deck more than ---- above grade requires a railing
30"
99
100
What is the smallest size anchor bolt that can be used in a concrete footing?
1/2"
101
What is the maximum distance between anchor bolts in a wall footing?
6 feet