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Block 2 Electrical Exam Questions And Answers With Verified Solutions Already Passed!!!
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Block 2 Electrical Exam Questions AndAnswers With Verified Solutions Already
Passed!!!
Where would a electrician find information concerning the use of personal
protectove equipment? - ANSWER✔✔Occupatinal health and safety Act
When is an electrical permit obtained? - ANSWER✔✔Prior to beginning any
electrical work
Unless walls are solid rock what is the maximum height a trench may be before it
must be properly sloped, shored or protected by a trench box? - ANSWER✔✔1.5
meters according to occupational health and safety
How is a confined space determined? - ANSWER✔✔By its restricted means of
access and egress
What are symbols used for on a set of electrical plans? - ANSWER✔✔To
represent objects
What is the purpose of a legend on a set of electrical plans? - ANSWER✔✔To
explain the symbols used of then plans
What voltage range is a volt meter set for checking for the presence of voltage? -
ANSWER✔✔The highest voltage setting
What does NTS stand for on a set of electrical plans? - ANSWER✔✔"Not to
scale"
What is the minimum size conductor to be used for wiring luminaries? -
ANSWER✔✔# 18 awg
Why are adjacent HID fixtures connected to different phases? - ANSWER✔✔To
minimize stroboscopic effect
, Which type of light would work best in a situation where a store owner wants to
highlight the color red in the meat display cooler? - ANSWER✔✔Fluorescent
Cool White DELUXE/ Cool white if cool white deluxe ant there
What are the bands of colors ranging from violet through blue, green, yellow, and
orange to red referred to as? - ANSWER✔✔The color spectrum
Wiring for ceiling outlet boxes, in which luminaries are to be mounted, is being
installed. What is the correct temperature rating of the insulation of branch circuit
conductors? - ANSWER✔✔90 degrees
A light that is to be controlled from five locations is being installed. How many 3-
way and 4-way switches will be needed? - ANSWER✔✔Two 3-ways and three 4-
way switches
What is the maximum over current protection rating of pole-top circuits? -
ANSWER✔✔100A
What is the largest size over current device that can be used to protect fluorescent
luminaries in a single dwelling? - ANSWER✔✔15A
What is the maximum number of trip coils required for a three phase motor? -
ANSWER✔✔3, 1 per phase
What type of three phase motor has the ability to correct its own power factor any
the power factor of other devices connected to the same line? -
ANSWER✔✔Synchronous motor
How does the starting current of a split phase motor compare to its full load
current? - ANSWER✔✔It is much higher than the full load current
What is the maximum time delay fuse that can be used with a three phase motor of
the full load current? - ANSWER✔✔175% table 29 of the CEC
How can be (LRA) locked rotor current be described? - ANSWER✔✔It 6 times
the full load current because the rotor is not turning
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