Exam (elaborations)
Chapter 1 ABYC Marine Electrical
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Chapter 1 ABYC Marine Electrical
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Chapter 1 ABYC Marine ElectricalWhich of the following is NOT a key concept to focus on when thinking about electricity for a
marine electrician?
Temperature
3 multiple choice options
According to Ohm's Law, if you know any two of the three values (volts, amps, ohms), what
can you do?
Calculate the third using multiplication or division
3 multiple choice options
Brainpower
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Which type of short circuit is the most dangerous?
Short circuit to ground
3 multiple choice options
What is a common symptom of an intercircuit short?
Dimly glowing lights
3 multiple choice options
What is a common cause of an internal short within a device?
Water entering the device
3 multiple choice options
What surrounds a wire or cable with electric current running through it?
A magnetic field
3 multiple choice options
What is the primary by-product of excessive electrical resistance?
Heat
3 multiple choice options
How many "common" symbols are there in electrical diagrams and schematics?
Over 2,500
3 multiple choice options
, What is the most common circuit fault?
Open circuit or unwanted open
3 multiple choice options
What is often the cause of an unwanted open in a circuit?
Poor workmanship
3 multiple choice options
What happens in a short circuit to ground?
The "Hot" lead finds a path to ground before reaching the device
3 multiple choice options
What can cause an intercicuit short?
A screw piercing a wiring harness
3 multiple choice options
What is the purpose of a guass meter?
To measure the magnetic field surrounding a wire cable with current
3 multiple choice options
What can excessive electrical resistance potentially lead to?
Fires
3 multiple choice options
When an electrical problem arises, what do people often immediately think is the issue?
Short circuit
3 multiple choice options
What does the ABYC standard E-11 provide guidelines for?
Proper crimping and pull tests
3 multiple choice options
What can cause a short circuit to ground?
A cable's insulation melting due to heat
3 multiple choice options
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