Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 33, Problem 7R
When is a metallic raceway required for photovoltaic source circuits? ____________
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The process of initial start-up for a utility-interactive photovoltaic system is known as _______?
a. pre-operational test prior to inspection by AHJ
b. commissioning
c. going live
d. secundary inspection
1.1 PV modules can be wired together in an array using ______ connections to increase voltage.
a. Terminating
b. Series
c. Parallel
d. AC
1.2 A PV module, also called a solar panel, is comprised of individual photovoltaic _______ wired and mounted together as an integrated unit.
a. Capsules
b. Compartments
c. Chips
d. Cells
1.3 A __________ system uses a storage system that stores the generated electricity so it can provide during times when the system’s panels are not receiving solar energy.
a. Direct coupled
b. Self regulating
c. Charge controlled
d. Indirectly connected
1. 4 __________ energy may have the potential to supply all of the world's energy needs, but at this time, it provides a very small percentage.
a. Coal
b. Natural Gas
c. Diesel
d. Solar
answer the following questions
Chapter 33 Solutions
Electrical Wiring Residential
Ch. 33 - Prob. 1RCh. 33 - Prob. 2RCh. 33 - Name four electrical hazards associated with...Ch. 33 - Name five components of a utility-interactive...Ch. 33 - Which conductor types are permitted to be...Ch. 33 - To size conductors and overcurrent devices for...Ch. 33 - When is a metallic raceway required for...Ch. 33 - Photovoltaic modules that also serve as an outer...Ch. 33 - Grounding electrode system requirements for a...Ch. 33 - The two methods permitted for connection of a...
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- ___________ is an Area on a device characteristic where the ratio between applied voltage and resulting current is constant.arrow_forwardHTGCR Nuclear power plant can be designed to produce _______ MW of power?arrow_forwardThe electrical schematic for a utility-interactive photovoltaic system is known as the_____? a. single line diagram b. two line diagram c. one line diagram d. three line diagramarrow_forward
- Assignment on Threaded jointsDue date:__________________ ___________________ ________________ Surname Given names IDA power line tower is erected to support a high-voltage power line (see figure below),which includes six phase conductors and three Earth shield wires. The tower isfabricated as a steel structure resting on four square supporting feet bolted to aconcrete foundation with four Anker bolts at each support (see figure below). Theresultant tension force FT from cables on each side of the tower is applied at point m,and can be at 60o to the horizontal plane (sagging downwards) if the tower is installedon a plane or at 30o to the horizontal plane pointed upwards if the tower is installed on ahilly landscape. The gusty wind load, which could be represented with a resultant forceof Fw is applied at the geometric centre of the tower n in any direction in the horizontalplane (see figure below) and tends to shift the tower sideways and topple it. In the caseof an accident when all…arrow_forwardPotential energy, or voltage, introduced into a circuit is called a(n) ____________________.arrow_forwardKVLLoop abfea: __________________________________________________Loop cdhgc: __________________________________________________Loop bcgfb: ___________________________________________________arrow_forward
- 5. A DC motor that draws 7.2A is located 85 feet from its 240VDC source. The copper conductors supplying the motor operate at 68°F. Voltage drop on the conductors must be limited to 2% for the motor to properly operate. What size, in circular mils, copper conductors are required for this installation?arrow_forwardIt is measure of how much counter emf is generated in a circuit. ________arrow_forwardFill in the blank The ___________ causes a low value of residual voltage which, in turn, causes a small current to flow in the field coils.arrow_forward
- 16. The grounded conductor is known as? _____________ 17. If a circuit has no resistance bet live and neutral it is a? ____________ 18. What does electricity produce?arrow_forwardGrounding lighting fixtures. Threre are specific requirements for grounding lighting fixtures. How must they be grounded and with what size conductors?arrow_forward1. Alternating current systems of less than _______ volts are required to be grounded if they're installed outside as overhead conductors. A. 50 B. 100 C. 75 D. 120arrow_forward
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