Gemtrix known questions Flashcards
(147 cards)
1
Q
Which are the two basic laws of construction estimating?
A
Low estimates decreases the profits and high estimates decreases the volume
2
Q
What is the maximum allowable length for float glass jalousies?
A
48 inches
3
Q
What is the maximum allowable distance that a worker can reach down below the work surface before a personal fall arrest system is required?
A
10 inches
4
Q
Wall framing is being constructed one floor at a time. What type of wood framing method is being used
A
Platform
5
Q
A contractor plans to use materials or methods other than those standard in the industry. The contractor should do which of the following?
A
specifically state this in the agreement
6
Q
Which of the following is required for a 3 feet 8 inches wide by 4 feet long floor opening near the center of a wood-framed span?
A
single header and double trimmer
7
Q
How is the hand of a door determined?
A
By the location of the hinges when the door is viewed by the inside
8
Q
The amount of water per sack of cement is what controls all EXCEPT:
A
Set up speed
9
Q
What are the three primary elements of a contract
A
offer, acceptance, and consideration
10
Q
Before excavating for a new building, how should the subsoil conditions be determined?
A
conducting test borings
11
Q
Which of the following is a TRUE statement about estimating?
A
Both overestimating and underestimating cost could have disatrous consequences
12
Q
What is the recommended minimum distance from the bottom of the ceiling framing to the top of the ceiling grid system in suspended ceilings?
A
3 inches
12
Q
Which is true about deck stairs?
A
They should be sloped for drainage
13
Q
Plastic roof cement should NEVER be applied to the bottom edge of a shingle to seal it
A
Because water will become trapped
13
Q
All of the following are considered general conditions that could affect costs directly associated with a specific project EXCEPT:
A
Profit Margin
14
Q
All of the following are benefits of platform construction as compared to ballon construction EXCEPT
A
easier installation of plumbing and wiring
15
Q
Generally, how often will exterior brick surfaces that are painted require repainting?
A
3 to 5 years
16
Q
How MUST rafters be framed to each other?
A
With a gusset plate
17
Q
What is the required minimum length drywall screw for installing 1/2 inch gypsum board to wood studs?
A
1 1/8 inch
18
Q
What can be determined by summing the project activities into an overall schedule?
A
The total resource demand for a project at any given time
19
Q
A jack rafter is face nailed to a hip rafter. What is the minimum number of 16d common nails that should be used?
A
three
20
Q
How many sheets of 4x8x1/2 drywall are needed for a room 10 x 15 with an 8 foot ceiling?
A
18 sheets
21
Q
Whihc is the first step that needs to be take prior to starting any excavation work?
A
Contacting the local utility companies
22
Q
What is the MAXIMUM recommended spacing for 5/8 inch drywall installed on a wall at right angles to framing members?
A
24 inches
22
Which is true about the placement of flexible insulation batts located in floor joists above an unheated crawl space?
They should be well supported between joists
23
What is the ampere load of a 3-hp single-phase motor at 240 volts with an efficiency rating of 63%?
11.23 amperes
24
Lifelines for fall protection shall have a minimum breaking strength of how many pounds?
5400
24
Assembly occupancies include portions of buildings or structures designed or intended for the gathering together of how many people?
100 or more
24
Unless otherwise provided, MC cables shall be secured at intervals not exceeding which of the following?
6 feet
25
An electrical appliance is rated at 1,500 watts, and is connected to 120 volts. What is the resistance associated with this appliance?
0.6 ohms
26
A motor with a code letter of D shall have what range of kilowatt-amperes per horsepower with a locked rotor?
4.00 to 4.49
27
A written emergency action plan is required for all employers with how many employees?
11 employees or more
28
A continuous load is a load where the maximum current is expected to continue for at least how long?
3 hours
29
Which type of service-entrance cable has a flame-resistant and moisture-resistant covering?
Type SE
30
A 3-hp pump is installed 220 feet from the 220-volt main service. What is the voltage drop when using 12 AMG solid wire?
8.8 volts
31
Unlisted nonconductive outside plant optical fiber cable shall not be permitted to be installed in which type of raceways?
flexible metal conduit
32
Disregarding exceptions, what is the minimum size copper-clad aluminum conductor permitted for use voltage ratings of 2000 volts or less?
12 AWG
32
For pool equipment, the disconnecting means for all ungrounded conductors shall be readily accessible and within sight from its equipment and shall be located a minimum of how many feet horizontally from the inside walls of a pool ?
5 feet
33
Unless part of listed decorative lighting assembly, the minimum size pendant conductor intermediate or candelabra- base lamp holders shall not be smaller than
18 AWG
34
The base of a 24-foot non-self-supporting ladder shall be be placed approximately how far from the vertical structure upon which is leaning?
6 feet
35
A minimum of how many threads needs to be engaged if machine screws are used to faster-bonding jumpers?
2
36
Exit signs, when required, shall have lettering that is a minimum of how many inches high?
6 inches
37
Where practicable, what is the minimum amount of separation that shall be maintained between communications wires and cables on buildings and lighting conductors?
6 feet
38
Where an electrical vault is required or specified for conductors and equipment operating at over 600 volts, nominal, the floor when in contact directly with earth shall be constructed in what manner?
minimum of 4-inch-thick concrete
39
Which type of service-entrance conductors can be contained in a cable tray?
MI cable
40
What is the recommended maximum total voltage drop on both feeders and branch circuit to the farthest outlet?
0.05
41
Disregarding exceptions, what is the minimum size copper-clad aluminum underground service conductor permitted?
6 AWG
42
What part of a bulk storage plant is classified as class 2, Zone 2?
drainage ditches, separators, and impounding basins
43
Where is AC cable NOT permitted to be used?
in damp locations
44
Power distribution bricks installed in boxes shall be
listed.
45
Snap switches directly connected to aluminum conductors shall be listed and marked CO/ALR if rated at
20 amperes or less
46
What is the minimum fire rating for electrical vaults housing electrical equipment over 600 volts, nominal?
3 hours
47
Type MI conductors shall NOT be composed of which material?
aluminum
48
In which locations are the installation of flexible metal conduit permitted?
concealed locations
49
Dry-type transformers rated over which voltage shall be installed in a vault?
35, volts
50
If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet?
6 feet
51
Alternating-current systems of less than 50 volts shall be grounded where supplied by transformers, if the transformer supply system exceeds which of the following?
150 volts to ground
52
What is the maximum length permitted for a flexible cord used to supply a room air conditioner with a nominal, 120-volt rating?
10 feet
53
If the branch circuit supplies a single non-motor-operated appliance, the rating of overcurrent protection shall not exceed 20 amperes if the overcurrent protection rating is not marked and the appliance is rated at
13.3 amperes or less
54
What is the minimum size EMT condult required for three 14 AWG, and three 8 AWG conductors? All wires are THIN solid wire
1 inch
55
A metal underground water pipe used as a grounding electrode shall be in direct contact with the earth for a minimum of how many feet?
10 feet
56
What is the minimum size copper conductor permitted for use for a 6,000 volt service?
6 AWG
57
What is the greatest root-mean-square (effective) difference of potential between any two conductors of a circuit defined as?
voltage
58
The nameplate on a nonmotor generator are welder shows the primary current is 60 amperes with a duty rating 80%. What is the minimum allowable AWG size copper conductor with TW insulation?
6 AWG
59
When installed in the same cable tray, cables operating at over 600 volts shall be of which type?
MC
60
What is the maximum weight of a luminaire that can be supported by the screw shell of a lampholder?
6 pounds
61
Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum feeder conductor size shall have an allowable ampacity not less than the noncontinuous load plus what percentage of the continuous load?
1.25
62
What is the minimum size grounding equipment conductor required for a photovoltaic system?
14 AWG
63
The combined cross-sectional area of all conductors or cables shall not exceed what percentage of the interior cross-sectional area of the underfloor raceway?
0.4
64
The feeder conductor ampacity shall not be less than that of the service conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of
55 amperes or less
65
What is the maximum number of 12 AWG conductors that can be used in a 4" x 1-1/2" square box?
9
66
A feeder supplies a continuous lighting load of 45 amperes and a single motor load of 30 amperes. What is the ampere rating of the feeder?
94 amperes
67
The portion of a grounding electrode conductor in a dc system that is connected to a rod or pipe shall NOT be required to be larger than which of the following?
6 AWG copper
68
For other than a totally enclosed switchboard or switchgear, what is the minimum amount of space that shall be provided between the top of an unshielded switchboard or switchgear and any combustible ceiling?
36 inches
69
Where the negative polarity of a dc system does not serve as the connection point for the grounded conductor, which color finish can be used to identify the negative underground conductor?
black
70
What is the maximum number of disconnects permitted per service grouped in any one location?
6
71
ENT shall not be
threaded.
72
When combination surface metallic raceways are used for both signaling and for lightning and power circuits, the different systems shall be run in separate compartments. Which is NOT an acceptable means of identifying by the interior finish of the different systems?
lagging
73
Where metallic plugs or plates are used with nonmetallic enclosures, how far shall they be recessed from the outer surface of the enclosure?
1/4 inch
74
What is the permissible noise exposure limit for an 8-hour day that, if exceeded, requires hearing protection to be provided?
90 dBA
75
Live parts of generators shall not be exposed to accidental contact where accessible to unqualified operated persons if their voltage is greater than which of the following?
50 volts to ground
76
Approximately how many kilowatts are used by a three-phase, 480-volt ac motor that draws a current of 52 amperes and has a power factor rating of 88%?
38 kW
77
The storage batteries used as a source of power for emergency systems shall be a suitable rating and capacity to supply and maintain the total load for a minimum of how long?
90 minutes
78
When the disconnecting means of a transformer is located remotely it must be
lockable.
79
A GFCI-type receptacle is required if installed within how many feet from the outside edge of the sink?
6 feet
79
Information technology equipment shall be permitted to be connected to a branch circuit by a power-supply cord with a maximum length of how many feet?
15 feet
80
Plug fuses shall be permitted to be used in circuits supplied by a system having a grounded neutral point where the line-to-neutral voltage does NOT exceed which of the following?
150 volts
81
A circuit breaker does not have an interrupter rating shown on it. What is the interrupter rating of the circuit breaker?
5,000 amperes
82
Disregarding exceptions; overcurrent devices shall be readily accessible and shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than how high above the floor or working platform?
6 feet, 7 inches
83
What is the motor nameplate FLA rating for a 30 hp three-phase motor, 208 volt with an efficiency rating of 85% and a power factor of 90%?
81 amperes
84
Which type of surge protection device is permanently connected and intended for installation between the secondary of the service transformer and the line side of the service disconnect overcurrent device?
Type 1
85
Which type of electrical equipment is used to change voltage level or waveform, or both, of electrical energy?
inverter
86
The service disconnecting means may be installed in all of the following EXCEPT
the bathroom
87
Type MV cable shall be permitted for use on power systems rated up to and including
35,000 volts, nominal.
88
Where a main bonding jumper or a system bonding jumper is a screw only, the screw shall be identified with which color finish?
green
89
A system that is connected to establish electrical continuity and conductivity is considered to be which of the following?
bonded
90
What is the approximate optimum hourly production rate for a wheeled backhoe filling hauling units? Struck capacity for the bucket is 6 loose cubic feet and the bucket fill factor is 110%. The cycle time is 2 minutes, the soil type is moist loam with a 25% swell factor.
6 BCY
91
In the previous year, a company had revenues of $500,000, project overhead of $40,000 and company overhead of $75,000. The company expects the percentage for project and company overhead to remain the same for the current year. The company desires to make a 10% profit on a project it is bidding. The project would have $80,000 in direct costs. What should the bid price be?
Between $110,000 and $120,000
92
750 feet of pipe is being laid at 0.5% slope. On a topographic map that has 6 inch contour intervals, approximately how many intervals will be depicted on the map from one end of the pipe to the other?
8 contour intervals
93
Which type of mortar should be used for masonry that is installed below grade?
Type M
94
A safety net is being used where the working surface is 9 feet in the air. What is the minimum horizontal distance of the outer edge of the net from the edge of the working surface?
10 feet
95
When MUST a saddle be installed on a chimney?
When the chimney is greater than 30 inches wide
96
What is the maximum height above a lower level that a jobsite walkway can be before it is required by OSHA to have handrails?
6 FEET
97
Which is true about deck stairs?
They should be sloped for drainage.
98
All of the following are benefits of platform construction as compared to balloon construction EXCEPT
easier installation of plumbing and wiring
99
How long will it take to excavate a trench that is 8 foot deep by 4 feet wide by 100 feet long? The hourly production rate is 40 BCY and the operator has average ability with an efficiency factor of 75%.
4 hour
100
Where is temporary horizontal bracing attached when erecting trusses?
Near the ridge line of the truss
101
Generally, how often will exterior brick surfaces that are painted require repainting?
3 to 5 years
102
How MUST rafters be framed to each other?
With a gusset plate
103
What is the required minimum length drywall screw for installing 1/2-inch gypsum board to wood studs?
1 1/8 inches
104
What can be determined by summing the project activities into an overall schedule?
The total resource demand for a project at any given time
105
A jack rafter is face nailed to a hip rafter. What is the minimum number of 16d common nails that should be used?
three
106
How many sheets of 4' x 8' x 1/2" drywall are needed for a room 10' x 15' with an 8-foot ceiling?
18 sheets
107
Which is the first step that needs to be taken prior to starting any excavation work?
contacting the local utility companies
108
Which is recommended for attic spaces?
They should be vented for summer heat relief
109
Which of the following statements about a sole proprietorship is TRUE?
The business, or any part of it, can be sold, altered, or changed at will
110
What is the MAXIMUM recommended spacing for 5/8-inch drywall installed on a wall at right angles to framing members?
24 inches
111
Which is true about the placement of flexible insulation batts located in floor joists above an unheated crawl space?
They should be well supported between joists
112
When MUST class A, B, or C roof coverings be installed?
When the edge of the roof is less than 3 feet from the property line.
113
The following is from the restrictive covenants on a customer's lot. 1. No detached single-family dwelling unit or any part thereof shall be erected nearer than 25 feet to any front lot line or side street lot line. 2. No building shall be erected nearer than 10 feet to any interior side lot line. How close can a home be placed to the front of the lot?
25 feet
114
An insurer offers the contractor a 20% per year reduction in premiums if the contractor has a defined safety program in place. The insurer's standard rates are $8 per $1,000 of coverage. The contractor has $300,000 in coverage. How much in premiums will the contractor save over a 3-year period by having a defined safety program in place?
Between $1,001 and $1,500
115
Using which of the following would cause the GREATEST increase in the insulation value when re-siding with aluminum?
Perforated reflector foil
116
An enclosed chute of wood or similar material is REQUIRED whenever materials are dropped more than how many feet to any point lying outside the exterior walls of a building?
20 feet
117
According to the Steel Deck Institute, what is the minimum width of a working area of steel deck?
12 feet
118
What is the maximum allowable distance that a worker can reach down below the work surface before a personal fall arrest system is required?
10 inches
119
Generally, who is responsible for ensuring that a project meets all zoning requirements?
Project owner
120
A contractor puts in a claim under a comprehensive standard general liability policy. The policy has no additional coverage, riders, or floaters, and has a $500 deductible per occurrence. The claim is for a job-site accident that caused $2,000 of injuries to employees, $1,800 of injuries to a pedestrian, $2,300 damage to the contractor's equipment, and $1,750 loss of project materials purchased by the contractor. How much is the insurance company liable for?
1300
121
At LEAST how often MUST an employer report information on the number of employees and the number of new hires in order to meet the requirements of the Child Support Enforcement Act?
Every 2 months
122
What is the MINIMUM clearance that combustible insulation MUST have from recessed lighting fixtures, fan motors, and other heat-producing devices?
3 inches
123
Which is the first step that needs to be taken prior to starting any excavation work?
contacting the local utility companies
124
AT LEAST how often should employees watch for possible hazards at the jobsite?
Constantly
125
What is the maximum allowable slope for an excavation in Type B soil?
45 degrees
126
According to the Steel Deck Institute, what is the minimum safe distance to maintain from the end of a deck unit for leading edge work?
6 feet
127
What is the MINIMUM breaking strength required of safety belt lanyards?
5,400 pounds
128
A contractor is about to sign an agreement with a representative of a corporation. Which should the contractor do?
verify that the representative has the authority to bind the corporation
129
What is required to be installed in a pair of French doors?
an astragal stop
130
Personal fall arrest systems used with a body belt shall limit the maximum arresting force on an employee to how many pounds?
900 pounds
131
In drywall, what is j-trim used for?
to provide a finished edge
132
What is a company's net worth equal to?
owners equity
133
What is the MINIMUM number of anchor bolts REQUIRED for anchoring a 12-foot section of wood sill plate to a foundation?
Three
134
Compensation paid to independent contractors is reported on which form?
1099
135
What is included in a company's balance sheet?
Assets, liabilities, and owner's equity.
136
What is the average collection period ratio for a firm that has $365,000 in annual revenues, $6,600 in current receivables, and net income of $32,000?
6.6
137
Which of the following is the correct sequence for installing a bifold door?
Top track, lower track, insert bottom pivot, insert upper pivot.
138
A building has an area of 3,350 square feet and a roof slope of 3 in 12. The roof is to be covered with composite shingles at three bundles per square which can be purchased only by the whole bundle. To convert from plan area to actual roof area, use the following table:
SLOPE MULTIPLY PLAN AREA BY 2 in 12 1.014 / 3 in 12 1.031 / 4 in 12 1.054 / 5 in 12 1.083 / 6 in 12 1.118 / 8 in 12 1.202 / 10 in 12 1.302 / 12 in 12 1.414 How many bundles of shingles are REQUIRED to roof the building? Do NOT make an allowance for waste, hips, valleys or starter courses.
Between 100 and 105.
139
Sliding doors are to be installed in a dwelling unit. What is the maximum allowable height for the threshold?
3/4 inch
140
Debris materials that are dropped more than 20 feet to a container outside a structure must be which of the following?
dropped through a chute
