19.Before determining the algebraic sum of voltages using Kirchhoff's voltage law, you must first determine which end of ____________ element is positive and which is negative.

The circuit breaker cubicles illustrated in your reading material each contain____circuit breakers. A. Two B. Three C. Four D. Six

The term "____" is defined in NEC® Article 100 as "connected to establish electrical continuity and conductivity." Select one: A. BENDED (BENDING) B. BONDED (BONDING) C. SHUNTED (SHUNTING) D. GROUNDED (GROUNDING)

Question A

4 Describe the various methods of laying underground cables. What are the relative advantages anddisadvantages of each method?

Q2 (1). In Figure 2-1, two curves represent fault currents supplied by two sources in case of phase faults at different corresponding locations. Overcurrent protection 1 and 2 are designed to protect line A- B. If there is no directional element, please explain how the setting values for overcurrent protection 1 and 2 could be calculated? (2). If only one directional element is available, please explain how the setting values for overcurrent protection 1 and 2 could be calculated? A B K1 IK1 g K2 Figure 2-1 IK2

6.a. The amount of short-circuit current that flows depends upon the amperes available at the source ofpower, the length of the circuit, and what other primary factor?A. The presence of a ground fault currentB. Proper installation of the branch circuitC. Presence of no previous damage to the electrical systemD. The size of the conductors and voltage at which they operate6.b. You're evaluating the components of a multioccupancy building that won't have an on-site employee. Tobe compliant with the NEC, each occupant will need to have access to their ownA. service-disconnecting means.B. service conductor.C. cable attachment point.D. emergency fire water-pump disconnect.