Study guides, Class notes & Summaries

Proof tests are made at _______. 20% of the original factory voltage 35% of the original factory voltage 40% of the original factory voltage 60% of the original factory voltage - Answer-60% of the original factory voltage The type of termination that only provides some form of electric stress control for the cable insulation shield terminus is a . Class 1 termination Class 2 termination Class 3 termination Class 4 termination - Answer-Class 3 termination Which termination class is ...

Companies with strong safety cultures usually have lower _____. - Answer-a. turnover Which of these is a true statement regarding safety? - Answer-a. Safety is a learned behavior and attitude. Poor lighting, excessive noise, and inadequate guards for moving parts are examples of _____. - Answer-b. unsafe conditions The activity that consists of breaking a job into its component tasks and then analyzing each step for potential hazards is called a _____. - Answer-a. job safety analysis ...

The NCCER electrical training program applies DOL standards and is a - Answer-four-year program Entry into an apprenticeship program is likely to require a(n) - Answer-GATB Form Test The minimum standards for the safe installation of electrical systems can be found in - Answer-the National Electrical Code (NEC) OSHA standards for general industry are covered in - Answer-29 CFR, Parts The termination of devices and fixtures is completed during a construction phase known as - Answer-t...

Which of the following is true regarding a series circuit? - Answer-The current flow is the same through all resistors. Which of the following is true regarding a parallel circuit? - Answer-It has more than one path for current to flow. Which of the following is true regarding a series-parallel circuit? - Answer-If a circuit is reduced to an equivalent series circuit, the total resistance is found by adding the loads. Two branches of a circuit (R1 and R2) across a 120V power line draw a...

NEC chapter 5 contains? - Answer-specialty occupancy areas Which of the following serves as the intro to the NEC and provides an overview of the book? - Answer-NEC article 90 Organizations that test products for safety are? - Answer-NRTL's (Nationally Recognized Testing Laboratories) Two definitions from NEC article 100 that trainees should become familiar with are? - Answer-labeled and listed NEC article 250 contains requirements for? - Answer-grounding and bonding electrical syste...

________ typically include the following information: a site plan, floor plans, elevations of all exterior faces of the building, and large-scale detail drawings. - Answer-Architectural drawings A _________ is an exact copy or reproduction of an original drawing. - Answer-Blueprint A simple, single-line diagram used to show electrical equipment and related connections is a ___________. - Answer-Block diagram A ________ shows the path of an electrical circuit or system of circuits, along...

A voltmeter is used to measure the value of a circuit's ____. - Answer-Electromotive force A closed circuit is indicated by an ohmmeter reading of ______. - Answer-Zero A meter that operates by sensing the strength of the electromagnetic field around the wire is a(n) ______. - Answer-Clamp-on ammeter Current measurement in milliamps are typically read using a(n) _____. - Answer-VOM An expected resistance of 1,000,000 ohms would be measured using a ______. - Answer-Megohmmeter Whi...

Any exposed live parts must be guarded if they are operating at - Answer-50V or more between terminals Which of the following are most likely to use dynamic braking? - Answer-Forklifts In a DC series motor, how much of its full-load torque is developed at starting? - Answer-500% For a given number of poles, which of the following determines the speed of an AC motor? - Answer-Frequency Which of the following motors is used where the required starting torque is high and speed control i...

___ shows the location of the electric service and the location of distribution and branch circuit panelboards within the structure - Answer-a building layout ___ refers to a single meter enclosure with a single meter watt-hour or demand meter - Answer-a self contained meter installation two basic types of current transformers ___ - Answer-bussbar and donut type metal enclosure containing factory mounted bare or insulated conductors, which are usually copper or aluminum bars, rods, or t...

what color is reserved for the hi-leg on 3-phase, 4 wire, delta system? - Answer-orange how much of a correction factor is needed for the ambient temperature of 40ºC? - Answer-0.82 NEC 310.15 (B)(2)(A) the most common conductors used for light and power installations range from - Answer-4/0 - 14 AWG what must be determined in considering the size of the conductor required to connect an electrical load to the source of supply? - Answer-permissable voltage drop what is an acceptable m...