Residential Construction Academy: House Wiring (MindTap Course List)
4th Edition
ISBN: 9781285852225
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Question
Chapter 7, Problem 18RQ
To determine
The NEC requirements for electrician to meet the given conditions
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4 - kindly identify the correct answer, thanks!
What is the main function of a BOP control system?
To disconnect the drillstring from the hook in an emergency
To start the BOP electric motor
To deviate a threatening gas flow to the flare
To direct power fluid to its associated BOP function (e.g., open/close a pipe ram)
Wire BC, has a diameter of D, and made of A-36 steel, is used to support member AB at B as
shown. Determine the value of the force P (kN) that causes a decrease of D in the diameter of
wire BC. The values of the original diameter (D.) of wire BC, ID, L,, and L, are given in table
below.
L1
L2
В
400 mm
Chapter 7 Solutions
Residential Construction Academy: House Wiring (MindTap Course List)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Describe when an electrician would use a new work box and an old work box. (Objective 2-3)arrow_forwardIn a work situation where an electricians hands get wet while operating a 120-volt, corded drill, which of the following would be true? (Objective 1-1) a. Body resistance increases, and any shock would be mild. b. Body resistance remains the same, and there is no danger as Long as rubber boots are worn. c. Body resistance is substantially decreased, and severe shock could occur. d. There is no danger as Long as a three-prong plug is used.arrow_forwardA ground resistance meter is used to determine the amount of resistance__________.(Objective 4-7) a. through a grounding electrode to the earth b. though a grounding electrode to the metal frame of an electrical cabinet c. from one end of a grounding conductor to the other end d. from a grounded conductor to the eartharrow_forward
- If Type SER service entrance cable is used by an electrician to feed a subpanel from a main panel, the cable must be secured within _________of the panel enclosures and at Intervals not exceeding___________. Name the NEC section that states this requirement. (Objective 8-7)arrow_forwardThe minimum amount of free conductor required at an electrical box used in residential wiring for termination purposes is______________ inches. As long as the box has no dimension Larger than 8 Inches (200 mm), there must be at Least ______ inches of free conductor extending out from the box opening. Name the NEC section that covers this wiring practice. (Objective 9-3)arrow_forward
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