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- 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.Food-waste disposers include a small manual reset button to restart the motor if it overheats and goes off-line due to prolonged use, something falls into the unit and jams it, or another cause. This manual reset provides the ____ protection required by Code for this type of appliance. A. short-circuitB. ground-faultC. overloadD. all of these20. 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 betweenother occupancies. Electrician B says that wiring under the raised floor requires fire resistant halfway up thewalls and floors between other occupancies. Electrician C says that the room must employ a disconnectingmeans that removes half of the power to all equipment in the room. Electrician D says that a disconnectingmeans isn't necessary for the room. Which of the following statements is correct?A. Electrician A is correct.B. Electrician D is correct.C. Electrician B is correct.D. Electrician C is correct.
- 45. A switch or circuit breaker can be used as both the controller and disconnecting means if it a. opens all ungrounded conductors as required by NEC 430.103 b. is protected by an overcurrent device in each ungrounded conductor c. is manually operable, or both power and manually operable d. All of these answersReceptacles that provide power for a spa or hot tub shall be ________. Select one: a. AFCI-protected b. twist-lock c. ground-fault circuit-interrupter protected d. both B and C6.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
- 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 LOADS13. A junction point of current paths is often called a _____. Select one: A. CIRCUIT B. COMBINATION C. NODEthis is a practice question, please answer. Its not for a grade
- Those employees who physically lock or tag out equipment for servicing or maintenance: Are always the people who normally operate the equip- ment. Are affected employees. Are authorized employees. Do not need training. a. b. C. d. Lockout locks: Can be used to lock tool boxes, storage sheds, etc. Can be used only for lockout purposes. a. b. C. Are provided by the equipment manufacturer. d. Must be bright orange in color. Authorized employees must be trained: To recognize hazardous energy sources, and to know the type and magnitude of the hazardous energy sources. b. a. To perform the lockout/tagout procedure. When an audit shows deficiencies with the procedure. C. d. All of the above. When authorized employees perform a shutriown, they must: Notify all affected employees that they are starting a lockout procedure. b. a. Locate all energy sources that power the equipment. C. Follow the procedures to shut down each machine. All of the above. d. If several people are needed to work on a…9.a. What should be done with the connector ferrule once a connector is attached to a fiber optic cable?A. It should be polished.B. It should be broken off and thrown away.C. Connectors don't have ferrules.D. It should be roughened with sandpaper.9.b. Which type of test should be performed on an installed cable after it has been terminated?A. Bit error rate testB. Continuity testC. OTDR2. 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.