Hinds_M5A1

Messages AA Statement one Training will allow you to safely erect a mobile. tower scaffold on any ground surface condition. and access the tower both internal and externally Statement two In windy conditions placing sheeting around the mobile tower scaffold will protect the workers on the tower a) Statement two is incorrect b) Statement one and two are correct c) Statement one is correct and statement two is incorrect d) Both statements are incorrect actclass.co.uk 22 Questi 23 Questi 24 Questi 25 Questi 26 Questi Submit Answers Ć

14: In a natural circulation solar water heater, collector has a glass cover on the top and an ________________ material at the bottom. a. Insulating b. Sheets c. Steel d. Tubes 15: text ____________ wind mill consists of narrow rims and wire spokes. a. Single bladed b. Vertical Axis c. Double bladed d. Multibladed

KVLLoop abfea: __________________________________________________Loop cdhgc: __________________________________________________Loop bcgfb: ___________________________________________________

Trouble shooting is the systematic _____________________________ of the various ______________ of a system or process to _________________ a __________________________________ part.

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

Electrical Engineering Give correct answer     UPSs measured in ____________ and ______________. __________________ are what your system uses and ____________________________ are what UPS can deliver in a perfect world.

Raceway fill calculations are a prerequisite in ____ needed for particular circuits. Select one: A. MATERIAL REQUIREMENTS B. SCHEMATIC REQUIREMENTS C. DETERMINING THE SIZE OF RACEWAY D. CIRCUIT LOADS

6. Ferrous metal raceways or enclosures are made with _______ content.A. brass or aluminumB. steel or brassC. aluminum or ironD. iron or steel

Direction. Answer each problem and show your solutions cleanly and clearly. Draw diagrams._______________________________________________________________________________________________________________________

1)The NEC Style Manual indicates that if a term in the NEC appears in more than two articles, it qualifies for a definition in which of the following. a) The articles where the term appears b) Article 90 c) Article 100 d) Table of Contents  2)Definitions of terms related to grounding and bonding and used only in Article 250 are located in ________.a) Article 100 b) Article 200 c) Chapter 9 d) Section 250.2  3)As a general rule, when installing ground rod electrodes, two must be installed always unless a single ground rod provides not more than 25 ohms’ resistance to ground. a) True b) False

Answer the following: A) Type of clipper circuit per level of clipping. 1. ___________ 2. ___________ 3. ___________   B) Type of clipper circuit per non-linear devices used. 1. ___________ 2. ___________   C) Other term for clipper circuit. 1. ___________ 2. ___________ 3. ___________

A grid-connected pv system with battery backup uses a separate load _______ to supply critical loads during grid power outages. a. Disconnect b. Controller c. Sub-panel d. Generator.

______________1.      It checks the ability or range of operations of the electronic components that be run in the system. ______________2.      It assesses the ability of the electronic components to exchange information or can access data without any restriction. ______________3.      It evaluates the ability of the part to meet the functional, mechanical, and electrical performance requirements.

2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.

QUESTION 9 When a ground wire is connected to an interior gas piping system and the underground portion of the gas pipe into the building is plastic, which of the following is (or are) true? a   A.This would be approved by code as the gas pipe is only being bonded to the electrical system. b   B.This installation would be approved by code, as the gas pipe is not a grounding electrode. c   C.Both A and B d   D.Neither A nor B

Noise Calculations Blender at near field or 3-feet ________________80.7 dB__________________ Blender at 6 feet __________________79.1dB________________________________ Blender at 12 feet _____________________77.4 dB____________________________ What was the reduction in sound in dBA at 6 feet ____________ at 12 feet_______?

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. What are the two closed loop control systems that are used generally in wind turbines? How do they work? 2. Calculate the power density of the input power from the wind when the wind is blowing at the rated wind speed at the turbine height. Clearly show your steps in details.

______________1.      It is the ability of an electronic part to meet the required performance specifications in its life cycle application environment for a specified period. ______________2.      It evaluates the performance and operating specifications of electronic components within the set standards. ______________3.     It is the ability to detect and assess the errors in the system.

6.a. Extreme _______ may cause some nonmetallic conduits to become brittle and therefore moresusceptible to damage from physical contact.A. coldB. corrosionC. voltageD. heat6.b. Snap switches are permitted to be grouped or ganged in an enclosure provided the voltage between theadjacent snap switches does not exceed ___ V.A. 400B. 300C. 200D. 100

H1. If you need to make a straight connection to splice two conductors (both size 4 AWG) together, whichof the following connection methods should you use?A. A pressure connectorB. A barrel crimpC. A butt crimpD. A wire nut H2. A/An _______ is an insulating tube or sleeve that protects an electrical conductor where it passesthrough a hole.A. expansion fittingB. couplingC. gland nutD. bushing H3. Conductors that are larger than AWG size 8 will come only as a/an _______ conductor.A. aluminumEnd of examB. coveredC. solidD. stranded

f.1. Since the footing or foundation is generally part of the grounding electrode system, the _______electrode is one of the first electrodes installed.A. metal water pipeB. plateC. concrete-encasedD. ground ringf.2. When you're connecting the grounding electrode conductor to a metal water pipe as it enters a building,the connection must be made within _______ feet of the pipe's entrance to the building.A. 10B. 5C. 15D. 7f.3. Which National Electrical Code table is used for sizing grounding electrode conductors?A. Table 250.102(C)(1)B. Table 250.66C. Table 250.122D. Table 250.118(6)(a)

7.A. Ferrous metal raceways or enclosures are made with _______ content.A. steel or brassB. aluminum or ironC. brass or aluminumD. iron or steel7.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.

5. Electrical apprentices must take _______ core hours of training to satisfy the Michigan academic program requirement. A. 650 B. 550 C. 250 D. 450

If an electrical system operates at a potential higher than 600 volts, the nonmetallic conduit must be encased in at least_of concrete. A. 1 inch B. 2 inches C. 4 inches D. 6 inches

1.a. Section 300.15(C) requires a fitting to be installed on each end of a conduit or tubing being used toprovide support or protection to protect the cable fromA. hazardous vapors.B. direct sunlight.C. abrasion.D. extreme heat or cold.1.b. Typically, a/an _______ is a better electrode than a ground rod because it provides a greater surface areafrom which the electrons can be dissipated.A. continuous grounding conductorB. clamp-on ground resistance meterC. rebarD. OCPD

If a recessed  luminary without an integral junction boxes installed what extra wiring must be provided

4.a. The ___ calculated load is rarely placed on an electrical system.A. optionalB. standardC. total  4.b. What's the primary disadvantage of using copper conductors?A. CostB. AvailabilityC. Weight 4.c. 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.

List all the tools and materials for terminating, connecting and testing electrical wiring and electronics circuits to be use in computers. *Please draw a table for the tools and materials with three columns where Terminating, Connecting, and Testing are indicated. Thank you and God bless!

6. According to the NEC, allowance for the future expansion of installations isA. an exception.B. in everyone's best interest.C. defined.D. a requirement.

APPENDIX D references: There are 240 square meters of floor area in a house that contains an electric range rated as 12 kW and an electric dryer rated at 5000 watts. Calculate (a) the general lighting required, (b) the minimum number and sizes of branch circuits required, and  (c) the minimum size of feeders (service conductors) required.