ETCP ELECTRICAL EXAM QUESTIONS AND
VERIFIED ANSWERS; 100% CORRECT; GRADE A
10.0.0.1 is a ______ - correct answer- Valid IP address
3-phase AC power per leg formula - correct answer- [KVA /
V x 1.732]/3
8 LED fixtures are separately controlled by a lighting console but
currently units #2 & #7 are operating in unison. What's most
practical troubleshooting step? - correct answer- Verify
that the DMX address of each unit is unique.
A Bull/Company Switch allows an Electrician to - correct
answer- Disconnect Power from a System
A follow spot puts out 100fc @200 ft with a 40ft beam size.
What is the beam size and foot candles at 100' - correct answer-
20 ft and 400fc (1/2 the size, 4x times the intensity)
A isolated ground 120v outlet, used in conjunction with an
isolation transformer has an - correct answer- Orange
triangle on its face
,A Rig of 208V HMI fixtures are on branch circuit breakers from
distribution panel. The breakers are within rated use for the
current load but are extremely hot, most likely from? - correct
answer- Harmonics
Active Load - correct answer- A load in which the power
consumed doesn't change if the applied voltage changes.
AED UNIT will.... - correct answer- not shock if heartbeat is
detected
An Arc Flash Can reach as much as _____________degrees F. -
correct answer- 20,000º
An incoming road board requires 300A of 3-phase , how best to
assure for a successful load-in? - correct answer- Locate a
company switch fed by a transformer capable of delivering the
required 300a
An Inductor is to current what a___________ is to water. -
correct answer- Paddle wheel
, An Opto-Splitter can protect a lighting system from_____on the
DMX Cable - correct answer- Over Voltage
Apprent Power = - correct answer- Voltage x Current
At one venue the Chain Motors worked properly with 100' of
cable run. At next venue a cable run was 300' and the motors
became intermittent. Why? - correct answer- Longer cable
run caused a Voltage drop
At what speed is molten metal, shrapnel, and other material
ejected during an Arc Blast? - correct answer- Can exceed
700 mph
Best diagnostic tool for working with SCR dimmer system is a
______ - correct answer- True RMS Digital Meter
Best location to ground a portable power generator providing
supplementary power to a building for a show? - correct
answer- at house service entry (where power enters
building) or service panel
VERIFIED ANSWERS; 100% CORRECT; GRADE A
10.0.0.1 is a ______ - correct answer- Valid IP address
3-phase AC power per leg formula - correct answer- [KVA /
V x 1.732]/3
8 LED fixtures are separately controlled by a lighting console but
currently units #2 & #7 are operating in unison. What's most
practical troubleshooting step? - correct answer- Verify
that the DMX address of each unit is unique.
A Bull/Company Switch allows an Electrician to - correct
answer- Disconnect Power from a System
A follow spot puts out 100fc @200 ft with a 40ft beam size.
What is the beam size and foot candles at 100' - correct answer-
20 ft and 400fc (1/2 the size, 4x times the intensity)
A isolated ground 120v outlet, used in conjunction with an
isolation transformer has an - correct answer- Orange
triangle on its face
,A Rig of 208V HMI fixtures are on branch circuit breakers from
distribution panel. The breakers are within rated use for the
current load but are extremely hot, most likely from? - correct
answer- Harmonics
Active Load - correct answer- A load in which the power
consumed doesn't change if the applied voltage changes.
AED UNIT will.... - correct answer- not shock if heartbeat is
detected
An Arc Flash Can reach as much as _____________degrees F. -
correct answer- 20,000º
An incoming road board requires 300A of 3-phase , how best to
assure for a successful load-in? - correct answer- Locate a
company switch fed by a transformer capable of delivering the
required 300a
An Inductor is to current what a___________ is to water. -
correct answer- Paddle wheel
, An Opto-Splitter can protect a lighting system from_____on the
DMX Cable - correct answer- Over Voltage
Apprent Power = - correct answer- Voltage x Current
At one venue the Chain Motors worked properly with 100' of
cable run. At next venue a cable run was 300' and the motors
became intermittent. Why? - correct answer- Longer cable
run caused a Voltage drop
At what speed is molten metal, shrapnel, and other material
ejected during an Arc Blast? - correct answer- Can exceed
700 mph
Best diagnostic tool for working with SCR dimmer system is a
______ - correct answer- True RMS Digital Meter
Best location to ground a portable power generator providing
supplementary power to a building for a show? - correct
answer- at house service entry (where power enters
building) or service panel
