100% VERIFIED)
1. For PV systems, a(n) _____ is a device that changes direct-current input to an
alternating-current output.: Inverter
2. Identify the contact pictured above. (NC and NO separated by a node): Form C
3. When applying personal protective grounds, which end is attached first?: -
***&The equipment end
4. An induction motor has 40kVA input power, a power factor of 82 percent, and
an efficiency of 92 percent. What is the horsepower?: ***&30.2 HP
5. How many connection points would you expect to find on a kelvin bridge?: 4
6. You arrive at a job to perform acceptance testing on a new-indoor 15KV switch
lineup. While the equipment has been installed multiple covers are off there are
power conductors hanging with taped ends. What should you do?: ***&Visually
confirm that the source of power have already been de-energized and lock out
7. What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta
transformer that is 80% loaded?: ***&22.000
***27.500
8. ASTM D 924 is a required acceptance test for liquid-filled transformers with
natural ester insulating fluid per NETA standards.: ***&True
9. NETA-ATS requires test decals be affixed on the exterior of equipment or
equipment enclosure of protective devices after performing electrical tests. Which
color test decal would you affix to a piece of equipment with a minor deficiency that
does not affect its fault detection or operation?: Yellow
10. What is meant by a "dead tank breaker?": The external tank is grounded.
11. If you have your ground conductor running through your zero-sequence CT
with your current carrying conductors, what will happen?: Ground fault protection
won't function
12. Which of the following would best describe a 52 device:: AC circuit breaker
13. A series circuit has two resistors. The resistors dissipate 10 W and 15 W.
What is the total power dissipation of the circuit?: 25 W
14. Which of the following would be the best choice for use in both the conductive
and mechanical areas of circuit breakers and switches?: Mobil 28
15. . What is the power factor temperature correction value for new mineral oil?:
***&20C/40C
17. OSHA requires the testing of a volt meter after a voltage test on voltage above
______.: 600V
, .
18 A tagout device must be strong enough to remain attached under a minimum of
____ lbs of force.: 50
19. A piece of wire that is 0.001 inches in diameter and 12 inches long is one mil-
foot.: True
20. At least 2 entrances of sufficient area must be provided giving access to the
electrical equipment working space.: ***&True
21. What is the Restricted Approach Boundary for a 69kV system?: ***&3 ft 10 in.
22. Which portion of the transmission system experiences faults occur most
frequently?: Overhead lines
23. To reverse the direction of rotation of a three-phase motor, reverse:: any two
leads
24. When can an unqualified person enter the Limited Approach Space?:
***&They are never allowed within the Limited Approach space
25. Cells are connected in series to increase:: ***Voltage rating
26. The three-phase connection in which one end of each of the windings are
connected together is called the _____ connection.: ***delta
27. What is the recommended minimum insulation-resistance value for motor
windings made before 1970?: ***100 Megohms per kV + 1
28. A digital multimeter, when set to read voltage, has an input impedance of: ***a
fixed, high impedance regardless of range
29. Class 00 rubber insulating gloves are proof tested at 2,500 VAC, what color
label would you expect to find on these gloves?: ***White
30. Write three thousand fortyeight tenthousandths in decimal form.: ***0.3048
31. . What is the primary purpose of the National Electrical Code?: ***The
practical safeguarding of persons and property from electrical hazards.
32. Each switchboard used as service equipment should be provided with a main
bonding jumper.: ***True
33. Harmonics increase the risk of fire and electric shock.: ***True
34. The ________ section of a switchboard receives power from the service section
and feeds it to various downstream loads.: ***distribution
35. Three inductors of 60mH, 120mH and 75mH respectively, are connected
together in a parallel combination with no mutual inductance between them.
Calculate the total inductance of the parallel combination in millihenries.:
***26 mH
36. What is the distance between points (3, 5) and (4, 5) on the rectangular
coordinate grid?: ***1
37. Which of the following sets of terminals would you expect to find on a DLRO?:
***C1, P1, C2, P2