The resistance of the conductor increases with increase of Temper Select one: O True O False
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A: string efficiency can be calculated using the following formula
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A: OPTION - D is the correct answer.
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A: The method of joining two conductors usually applied in power circuit generally known as splices.
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A:
Q: If the length of the conductor is increasing, then the resistance of the conductor will
A: It will increase. The explanation is provided below.
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Q: 8. The resistance of a conductor depends only on the cross sectional area of the conductor. True…
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Q: Electrical conductivity increases with increasing temperature. TRUE FALSE
A: Correct option is False Why because, for a given conductor, if temperature increases , There is…
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Q: 1. Determine the resistance of a conductor 0.10m long, with a uniform diameter of 1.0 cm and having…
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Q: 5. The resistance of a certain circular conductor is 7 ohms. It is drawn so that its new length is…
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A: Referring to the questions, the given data are:
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Q: 1. A given conductor has a resistance of 0.5 ohm. It is drawn down to reduce its diameter to…
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Q: correct answer is A,B ..etx) Since the two coaxial conductor cables in the above figure are…
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- 20. A separately derived system is an electrical source, other than a service, having ____ connection(s) to circuit conductors of any other electrical source other than those established by grounding and bonding connections. Select one: A. INDIRECT B. NO DIRECT C. DIRECT D. COMPLETEUnderground service conductors shall have [Fill-in-the-blank]. A)adequate mechanical strength. B)sufficient ampacity for the loads calculated. C)none of these. D)adequate mechanical strength and sufficient ampacity for the loads calculated.1.A. When a grounding electrode conductor is connected to the grounded conductor within a serviceequipment enclosure, it's required to be connected to the _______ terminal bus.A. service bonding jumperB. equipment groundingC. grounded conductorD. main bonding jumper1.B. The grounding electrode conductor for a DC system will have that conductor sized no smaller than_______ AWG aluminum.A. 8B. 6C. 10D. 121.C. What are the two key aspects of the installation of the grounding electrode conductor?A. Sizing and protectionB. Bonding and accessibilityC. Materials and placementD. Location and safety
- Given the following 120/240 Residential Service, list two (2) ways the current in the neutral conductor can be minimized (zero or close to zero):Give the raceway size required for each of the following conductor combinations:1. Five, 10 AWG, Type THW in Schedule 80 PVCWhat is the withstand rating of a AWG copper conductor? A. 60,516 ampere squared seconds b. 121,032 ampere squared seconds c. 302,580 ampere squared seconds d. 605,160 ampere squared seconds
- 20.a. What's the primary disadvantage of using copper conductors?A. DurabilityB. CostC. AvailabilityD. Weight20.b. The NEC requires that each service-disconnecting means be suitable forA. hazardous locations.B. disconnecting the meter.C. wet conditions.D. the prevailing conditions 20.c. As a general rule, each building or structure is limited to a single service. What's an automatic exceptionto this rule?A. A second service deemed suitable for useB. A second service having the proper markingsC. Emergency systems or fire pumpsD. Higher building occupancy(ii) An overhead transmission line is supported at a river crossing by two towers of height 35 m. The weight of the conductor is 0.307 kg/m. The weight due to wind is 1.3 kg/m. The ultimate strength is 1400 kg and factor of safety is 3. If the Span length is 130 m. Determine a) Total weight of the conductor Answer for part 1 b) Sag Answer for part 2 c) Total Length of conductor between supports Answer for part 3 d) Clearance between the lowest point on the conductor and water level.16. A conductor installed from a bonding/grounding bushing that's used to provide a conducting connectionbetween a raceway and the enclosure that the raceway is connected to is an example of a/anA. grounding electrode conductor.B. bonding jumper.C. equipment grounding conductor.D. impedance device.
- equipment grounding 1. The only exception to the need for all information technology equipment to be satisfactorily grounded is where the equipment is A. DC powered.B. backup generator powered. C. double-insulated.D. isolated equipment. 2. Which section of the National Electrical Code lists sizing requirements for wire-type equipment grounding conductors? A. 250.66 B. 250.118 C. 250.4 D. 250.122airframe electrical system Question: What four factors affect the resistance of wires? (Source: FAA AC 43.13-1B/2B)1.a. Which of the following is suitable as an equipment grounding conductor so long as it does so under morerestrictive conditions?A. Electrical metallic tubingB. Flexible metal conduitC. Rigid metal conduitD. Armored cable1.b. When rigid or intermediate metal conduit is installed in a hazardous location, it must be engaged by_______ threads into each connection.A. 4B. 3C. 2D. 5