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CRIME SCENE INVESTIGATOR IAI CERTIFICATION EXAM
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CRIME SCENE INVESTIGATOR IAI CERTIFICATION EXAM
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CSST BUILDING INSPECTION EXAM NEWEST ACTUALEXAM COMPLETE 120 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
The grounding electrode conductors may also be called: - ANSWER: Ground Wire
The grounding systems are connected to the house neutral at the: - ANSWER:
Service Box
From the point where the ground and the neutral wires connect, there are two paths
to ground. What are they? - ANSWER: Through the neutral wire or through the
grounding electrode conductor to water pipes or grounding rods.
What is the advantage of a 240 volt circuti - ANSWER: More electricity can flow at a
lower amperage rating.
Gas piping, "black pipe", can be used as a ground. - ANSWER: FALSE
15 amp breakers use what gauge wire? - ANSWER: 14 Gauge
20 amp breakers use what gauge wire? - ANSWER: 12 gauge
30 amp breakers use what gauge wire? - ANSWER: 10 gauge
40 amp breakers use what gauge wire? - ANSWER: 8 gauge
As it relates to fuses, what is a safety concern? - ANSWER: A fuse that is too big.
The grounded service conductor is called: - ANSWER: The neutral.
An overcurrent protection device can be what? - ANSWER: A fuse or a breaker
Which of the following suggest an improperly supported service drop? - ANSWER:
Missing drop loop
Which of the following is a reliable indicator of service amperage? - ANSWER: The
size of the service entrance conductors.
Report as deficient breaker boxes that are? - ANSWER: Installed in hazardous
location/safety issues
What is the definition of a volt? - ANSWER: A volt is a measurement of the force or
potential energy in an electrical system (V=IxR)
, What is the definition of an ohm? - ANSWER: An ohm is a measure of resistance to
electrical flow in a conductor or insulator (R=V/I)
What is a brief definition of an amp? - ANSWER: An amp is a measure of how much
electrical current is flowing (I=V/R)
What is a brief definition of watt? - ANSWER: A watt is a measure of the rate of
electrical energy being consumed or released (P=VxI)
In most areas, for what distance can service entrance wires run inside the building
before going into the service box without special permission? - ANSWER: 0 feet or as
short as possible.
Service laterals are installed where? - ANSWER: Underground
What is a common problem with service drops? - ANSWER: Proper clearance from
roofs.
What are two common problems with service entrance conductors? - ANSWER: No
drip loop and no mast head.
What are 3 common areas of water penetration? - ANSWER: Conduit joists, mast
head, roof flashing.
Implications of an undersized service include: - ANSWER: nuisance tripping of the
main fuses or breakers.
After entering the service box, the neutral service entrance conductor should -
ANSWER: connect to the terminal with the grounding electrode and the service
neutral.
Double tapping is - ANSWER: the term for attaching two wires to a single fuse or
breaker terminal
Which of the following is a safety issue? - ANSWER: The main fuses have a higher
rating than the service entrance wire.
A 14-guage copper wire is protected by a 20amp fuse. You should report that -
ANSWER: this is a defect, and recommend improvement.
What is a suitable location for a branch circuit wire? - ANSWER: Stapled to two by
four studs.
Problems with aluminum wiring include all of the following except? - ANSWER: It
lacked a ground wire.
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