According to the NEC, allowance for the future expansion of installations is A. an exception. B. in everyone's best interest. C. defined. D. a requirement
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6. According to the NEC, allowance for the future expansion of installations is
A. an exception.
B. in everyone's best interest.
C. defined.
D. a requirement.
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- 22.a. Perfect timing of the schedule or frequency of PM inspections and maintenance isA. dependent upon the manpower that’s applied to a program.B. possible within the first two years of a PM program.C. possible within the first year of the program.D. an unreachable goal.22.b. When machines fail shortly after they’ve been built and installed, the failures are termedA. singularity failures.B. independent component failures.C. short-term failures.D. infant mortality failures.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 occupancy1. What is mean by equipment grounding and system grounding?
- 1. What is mean by equipment grounding and system grounding? 2. Discuss any two types of grounding methods.In your own words and from your own understanding, avoid plagiarism or copying from the Course Material, explain or describe MOLDED CASE CIRCUIT BREAKER.- Loads, Service, and Overcurrent Protection 6.a. The general lighting load is based on a _______ per square foot basis.A. kilowattB. number of circuitsC. volt-ampereD. general illumination6.b. What's the primary disadvantage of using copper conductors?A. AvailabilityB. WeightC. CostD. Durability
- Explain briefly THREE (3) reasons for generation waste from electrical and electronic equipment.What is ampere circuital law?Part 2: Analysis and selection of the Wind Turbine. The team decides at install a 30 MW wind farm. The turbine that has been selected by the local contractor is an Enercon wind turbine. The specifications of all the available Enercon wind turbine is shown in the attached datasheet. 1. Decide on the required number of wind turbines needed. 2. In your own words, explain what the Betz limit for wind turbines means.
- c.1. Which of the following is one of the three essential functions of an equipment grounding conductor?A. Provide an arc-fault current pathB. Establish groundingC. Establish bondingD. Ensure the system is groundedc.2. What's another name for the three-point method of Earth resistance testing?A. Fall-of-potentialB. Line surgeC. Spatial shieldingD. Leakage current c.3. If the National Electrical Code provides a requirement to ground equipment, it generally implies thatthere will be a direct connection to the Earth of a connection through a/anA. grounding electrode conductor.B. equipment grounding conductor.C. equipotential bonding conductor.D. bonding conductor.7.B. The size of a grounding electrode conductor for a service or separately derived system is generally basedon the size of the largestA. ungrounded supply conductor.B. equipment grounding conductor.C. grounded electrode.D. bonding jumper.7.C. Which of the following statements about bonding is true?A. The joint or termination must offer opposition in the circuit for effective electrical connections.B. Effective bonding keeps impedance high if a fault should occur.C. The entire electrical safety circuit is only as good as its strongest bonded link.D. Bonding connections must endure high levels of fault current until overcurrent protective devices can operate.The purpose of Informative Annex H is toA. safeguard persons and property from hazards arising from the use of electricity.B. list the requirements for the removal of wiring and systems.C. provide a set of administrative and enforcement provisions that supplements the Code. D. explain the process of mandatory plan design review.