NCCER Study guides, Class notes & Summaries

Which article of the NEC covers grounding? - Answer Article 250 What is a dropout plate? - Answer Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: - Answer 372/575 3-Phase, 4-wire What does a GFCI breaker do? - Answer Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? - Answer The motor will...

Which Article of the NEC covers grounding? - Answer article 250 Which of the following is a 90 degree, explosion proof fitting? - Answer GUAL What is a dropout plate? - Answer Metal plate with a curved surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States EXCEPT: - Answer 372/575 3-PHASE, 4-WIRE What does a GFCI breaker do? - Answer Opens a circuit to prevent operation of an electrical device What wil...

b. falls - Answer 1. The four leading causes of death in the construction industry include electrical incidents, struck by incidents, caught-in or caught-between incidents, and a. vehicular incidents b. falls c. radiation exposure d. chemical burns b. safety instruction sign - Answer 2. A sign that has a white background with a green panel with white lettering is a a. general information sign b. safety instruction sign c. caution sign d. danger sign a. stored in a containe...

Another name for a machinist hammer is a - Answer Ball-peen hammer A heavy duty tool used to drive post or other large stakes is a - Answer Sledge hammer The proper angle for the edge of a cold chisel - Answer 60 degrees A Reed and Prince screw comes to a relatively sharp point at - Answer the base of it's drive socket When an object is plumb it is - Answer perfectly vertical One situation that can make a measurement with a laser inaccurate is - Answer Measuring to a ...

) When is the BEST time to document each loop check for commissioning ? A. Prior to the start of inspection B. When all test and inspection activities are complete C. When updating information on a daily basis D. At the time each test is completed - Answer D. At the time each test is completed (INST LVL4)(12410-16/ Section 3.2.0) 2) Teflon paste must not be used on : A. Nitrogen service B. Natural gas service C. Water service D. Oxygen service - Answer D. Oxygen service (INS...

Plans used for work that has to do with construction in or on the earth are called - Answer Civil Plans The material used for the walls would be found in the? - Answer Structural Plans Information in a drawings title block identifies the project on the - Answer Sheet Title Information needed to identify lines in the symbols in a construction file can be found in the - Answer Legend Brake lines are used to show that - Answer Only part of an object is represented to save spac...

An electric current always produces ? - Answer A magnetic field The number or cycles an alternating electric current undergoes per second is known as ? - Answer Frequency What is the peak voltage in a circuit with an RMS voltage of 120 VAC ? - Answer 170 VAC Wich of the following conditions exist in a circuit of pure resistance ? - Answer The voltage and current are in phase In a purely resistive AC circuit where 240v is applied across a 10 ohm resistor, the amperage is ? - A...

Which of these is a true statement regarding safety? - Answer Safety is a learned behavior and attitude. A measure of the probability, consequences, and exposure related to an event is referred to as _____. - Answer Risk When placing a ladder against a platform or roof, the top of the ladder should extend above the point where the ladder touches the platform or roof by at least _____. - Answer 3 feet One of the most common grounding systems used for protection against accidental e...

What is shown on a sectional drawing? - Answer cutaway view of a building The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240 volts AC. What is the minimum circuit operating volt? - Answer 232 What is the name of the connecting device shown in the diagram? - Answer split - bolt The volt amperes in an AC circuit is the same as - Answer apparent power What should be done to change rotation of a 3 phase motor? - Answer Swap any two T le...

safety culture - Answer The culture created when the whole company sees the value of a safe work environment. OSHA - Answer Occupational Safety and Health Administration incident - Answer an unplanned event that may or may not result in property damage accident - Answer an unplanned event that results in personal injury and/or property damage fatal four - Answer Falls, Struck by, Caught between, and Electrical risk - Answer a measure of the probability, consequences an...