Lab 10 EDA, GSR and Polygraph 2015-11-17a.docx

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

schedules are typically provided to detail the circuits and overcurrent protection required for listribution equipment. Branch-circuit - Outlet C. d. ore distribution points for electrical in .... Switch Panelboard

a.1. A main bonding jumper must only be foundA. within enclosures serving as sub-panels.B. at the grounding electrode.C. on the load side of a GFCI.D. within the enclosure that houses the service disconnecting device.a.2. Which of the following statements about grounding electrode conductors is true?A. They restrict the ground connection.B. They eliminate potential differences between conductive objects and the Earth electrode.C. They facilitate operation of overcurrent protective devices.D. They perform bonding between the Earth and grounded conductors.a.3. Main bonding jumpers are required to be made of _______ or other corrosion-resistant material.A. brassB. aluminumC. copperD. copper-clad aluminum

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

Which of the following statements about equipment grounding conductors (EGCS) is true? A. The National Electrical Code permits the EGC to also perform as a grounding electrode conductor. B. More than one EGC must be used if multiple circuits are installed in a single raceway, cable, or cable tray. C. No current should be present in the EGC during normal operation. D. EGCs are required to be decreased in size to address voltage drop.

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

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

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.

Complete the following statement about multimeters using the following words. Words: Accuracy, Advanced, Available, Circuits, Current, Digital, Diode, Direct, Display, Electronic, Functions, High, Hundredths, Impedance, Measure, Multimeter, Needle, Ohms, Provide, Range, Selected, Test A digital __________ (DMM) can __________ many more things than volts, __________, and lowcurrent. Most multimeters measure __________ current (dc) and alternating __________ (ac)amperes, volts, and ohms. More __________ multimeters may also measure __________ continuity,frequency, temperature, engine speed, and dwell, and/or duty cycle.Multimeters are __________ with either digital or analogue displays. DMMs __________ great__________ by measuring volts, ohms, or amperes in tenths, __________, or thousandths of a unit.Several test __________ are usually provided for each of these __________. Some meters havemultiple __________ ranges that must be manually __________; others are auto-ranging.Analogue…

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

Four electricians are discussing wiring under raised floors in information technology equipment rooms. Electrician A says that wiring under the raised floor requires fire-resistant walls, floors, and ceilings between other occupancies. Electrician B says that wiring under the raised floor requires fire resistant halfway up the walls and floors between other occupancies. Electrician C says that the room must employ a disconnecting means that removes half of the power to all equipment in the room. Electrician D says that a disconnecting means isn't necessary for the room. Which of the following statements is correct? A. Electrician B is correct. B. Electrician D is correct. C. Electrician A is correct. D. Electrician C is correct.

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.

7. If a grounded surface metal box makes direct contact with the mounting strap for a switch or receptacle,then theA. bonding jumper can be undersized.B. neutral conductor will operate as the equipment grounding conductor.C. bonding jumper isn't required.D. device must be protected with a GFCI device.

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

To answer the question, type your answers in RED or paste the image of your handwriting solution   Given the circuit #1 presented above, answer the following questions:   Determine the value of the VD (voltage forward of the LED) for the LEDs RED, VDRED, GREEN, VDGREEN and BLUE, VDBLUE, when the current through the LEDs is 10mA,   VDRED = ____________ ; VDGREEN = ____________ ; VDBLUE = ____________   Is the LED in Circuit #1, connected in the way that will be lighting up or not – Justify your answer   Type your answer here     Calculate the value of the resistance Rled in Circuit #1, to ensure that a RED LED will have a current of 10 mA Type your answer here or paste the image of your handwriting solution here     Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA Type your answer here or paste the image of your handwriting solution here     Calculate the value of the resistance Rled in Circuit #1, to ensure that…

List the minimum trade size Type EMT for each of the following applications. (Objective 12-1)   Three 14 AWG THHN, four 12 AWG THHN ______ Three 12 AWG THHN, four 8 AWG TW ______ Five 12 AWG THW, three 10 AWG THWN, three 8 AWG THHN ______