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How should resistors and reactors rated over 600 volts, nominal, be installed to protect personnel from accidental contact with energized parts? | nec_codebook |
If there is no overcurrent protection on the secondary side, what should the protective device for a 480-volt transformer with a rated primary current of 100 amperes not exceed? | nec_codebook |
For indoor installations of dry-type transformers greater than 112.5 kVA, what is the exception to requiring an approved transformer room? | nec_codebook |
When it comes to dry-type transformers, under what conditions are they not required to be readily accessible? | nec_codebook |
Which of the following dry-type transformers must be installed in a vault when the transformer is located inside a building? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
What does an electrical working drawing consist of? | nec_codebook |
Why do electrical drawings use abbreviated language? | nec_codebook |
Why is it important for every electrician to consult and understand information on electrical drawings? | nec_codebook |
What do plant maintenance personnel use electrical drawings for? | nec_codebook |
Why is it necessary for anyone contemplating getting an electrician or contractor's license to have a good knowledge of electrical drawings? | nec_codebook |
Using the 1/8 inch architect's scale in Figure 13-1, what is the dimension? | nec_codebook |
Using the 1/8 inch architect's scale in Figure 13-1, what is dimension "B"? | nec_codebook |
Look at the architect's scale in Figure 13-1. What is dimension on the 4/ inch scale? | nec_codebook |
Look at the architect's scale in Figure 13-1. What is dimension "D" on the 4/2 inch scale? | nec_codebook |
Look at the architect's scale in Figure 13-1. What is dimension "E" on the 1/2 inch scale? | nec_codebook |
What is dimension on the 4/4 inch scale in Figure 13-2 on the next page? | nec_codebook |
What is dimension "B" on the 4 inch scale in Figure 13-22? | nec_codebook |
What is dimension "C" on the inch scale in Figure 13-22? | nec_codebook |
What is dimension 'D' on the inch scale in Figure 13-22? | nec_codebook |
At which of the following drawing locations are the receptacle layouts most likely to be? | nec_codebook |
At which of the following drawing locations is the drawing scale most likely to be? | nec_codebook |
On electrical working drawings, what is the purpose of a legend or electrical symbol list? | nec_codebook |
What symbol is normally used for duplex receptacles? | nec_codebook |
Which division in written specifications for a building project mainly deals with electrical work? | nec_codebook |
What type of switch has a key-operated mechanism? | nec_codebook |
What type of switch is commonly used in conjunction with a pilot light? | nec_codebook |
What type of switch is designed for momentary contact? | nec_codebook |
What type of receptacle has a numeral or letter within the symbol to indicate its type or usage? | nec_codebook |
What type of receptacle is split-wired and commonly used in households? | nec_codebook |
What type of receptacle is designed for special purposes and may have subscript letters indicating its function? | nec_codebook |
Look at the drawing in Figure 13-4. How many duplex receptacles are shown in the living room? | nec_codebook |
How many branch circuits are shown in Figure 13-42? | nec_codebook |
How many duplex receptacles are installed outside the building in the drawing in Figure 13-42? | nec_codebook |
What is shown in Figure 13-4? | nec_codebook |
To comply with the NEC, what device must be used on all three outside duplex receptacles? | nec_codebook |
To what scale is the floor plan of the residence in Figure 13-4 drawn? | nec_codebook |
In the power-riser diagram in Figure 13-5, what does "CT cab:" stand for? | nec_codebook |
What size and how many service conductors are installed in each of the 3/4 inch conduits from the service head to the C/T cabinet in Figure 13-52? | nec_codebook |
What size conduit is shown in the drawing in Figure 13-5 for containing three No.6 AWG conductors? | nec_codebook |
Which of the following best describes where the type and size of overcurrent protection may be found? | nec_codebook |
What wire size and how many conductors are specified for the feeder circuit supplying the rooftop unit No. 2 in the drawing in Figure 13-52? | nec_codebook |
What size conduit is specified to contain the conductors in Question 13-27? | nec_codebook |
How many sections of busway are specified in the drawing in Figure 13-52? | nec_codebook |
What size wire is used to feed the two sections of bus duct on the left side of Figure 13-52? | nec_codebook |
Who is to provide the electric service for the project in Figure 13-62? | nec_codebook |
If each of the Type C lighting fixtures in Figure 13-6 have a total lamp and ballast load of 200 volt-amperes, what is the total connected load of circuit A-1 (in volt-amperes)? | nec_codebook |
How many of each type lighting fixture are connected to circuit A-3 in Figure 13-62? | nec_codebook |
Type C fixtures in Figure 13-6 have the letter "R" next to the outlet boxes. According to the ANSI electrical symbols in Figure 13-3, what does this "R" mean? | nec_codebook |
Where does the drawing in Figure 13-6 indicate that information can be found concerning? | nec_codebook |
How are fixture types identified in the lighting floor plan? | nec_codebook |
What is one good reason that circuit lines are drawn curved rather than straight? | nec_codebook |
What do arrowheads placed on circuit lines mean? | nec_codebook |
The drawing title block in Figure 13-7 shows that the project is located in what county or city? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
From the title block in Figure 13-7, what does this sheet of the drawing entail; that is, which of the trades? | nec_codebook |
The drawing in Figure 13-8 shows the floor plan of a residence with a combination of electric baseboard and forced-air (down-flow) heaters in the various rooms. If the symbols with an "X" in them represent the baseboard heaters, how many are to be installed in the residence? | nec_codebook |
The wall-mounted thermostats in Figure 13-8 are designated by a circle with the letter "T" inside. How many of these thermostats are shown? | nec_codebook |
Where are all the wall-mounted thermostats in Figure 13-8 located? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
What is one of the requirements before being able to take the electrician's exam? | nec_codebook |
Where can one apply for a journeyman electrician's license? | nec_codebook |
What type of training programs do many industrial establishments and labor organizations prefer for their electricians? | nec_codebook |
What is typically awarded to an apprentice or trainee after completing a five-year program and passing an examination? | nec_codebook |
What should each examinee present before being permitted to take the examination? | nec_codebook |
What should each examinee bring to the examination? | nec_codebook |
What will each examinee be furnished with during the examination? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
Have you ever held a Tennessee contractor's license before? | nec_codebook |
How many years has your company been in business as a contractor under your present business name? | nec_codebook |
How many years of experience has your company had as a Prime Contractor and as a Subcontractor? | nec_codebook |
What types of work do you plan to perform as a licensed contractor? | nec_codebook |
Have you ever failed to complete any work awarded to you? | nec_codebook |
If yes, where and why? | nec_codebook |
Has any officer or partner in your organization ever been an officer or partner in another organization that failed to complete a construction contract? | nec_codebook |
Has any officer or partner in your organization ever failed to complete a construction contract under their own name? | nec_codebook |
What other lines of business are you financially interested in? | nec_codebook |
For what corporation or individuals have you performed work and to whom do you refer? | nec_codebook |
For what cities or counties have you performed work, and to whom do you refer? | nec_codebook |
For what state bureaus or departments have you performed work, and to whom do you refer? | nec_codebook |
Have you performed work for the U.S. Government? | nec_codebook |
If so, when and to whom do you refer? | nec_codebook |
What is the construction experience of the principal individuals in your present organization? | nec_codebook |
If you are a highway contractor, are you familiar with the Standard Specifications for Road and Bridge construction adopted by the State of Tennessee and approved by the U.S. Bureau of Public Department of Highways and Public Works? | nec_codebook |
Can you list a few representative projects you have completed as a highway contractor and indicate the dollar amount of the project? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
What is the basic unit used to measure current flow? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
Example 1: Conductor P in Figure 14-5 must be identified by which of the following colors? | nec_codebook |
Which color should be used to identify conductor P in Figure 14-5? | nec_codebook |
When should a circuit leading to a gasoline dispensing pump have a disconnecting means? | nec_codebook |
Example 4: Type TW copper conductors in a raceway are used for feeder conductors in the diagram shown in Figure 14-6. Which of the following is the minimum allowable size of these feeder conductors? | nec_codebook |
If the phase-to-neutral voltage in a three-phase system is 2400 volts, approximately how much is the phase-to-phase voltage? | nec_codebook |
Which of the following conditions shall be met to omit overcurrent protection at the tap point for a 20-ft. feeder tap? | nec_codebook |
When both exams are completed, who should grade your answer sheets? | nec_codebook |
What percentage is considered the lowest passing grade in most states? | nec_codebook |
How many questions out of a total of 200 must be correctly answered to pass? | nec_codebook |
What should the person grading your exam do for questions missed? | nec_codebook |
What score on a sample test indicates a good chance of passing the real electrician's or electrical contractor's exam? | nec_codebook |
What is recommended if you want to improve your chances of passing the real examination? | nec_codebook |