ETCP Entertainment Electrician
Study online at https://quizlet.com/_h10acr
1. Which of the following allows an entertainment elec- bull/company switch
trician to disconnect power from a system?
2. Which of the following items protects the lighting con- opto-splitter
trol system from overvoltage on the DMX cable?
3. Two lighting circuits are run from the same distribu- Use larger cabling
tion box with 120V metered at the source:
Circuit 1: 75 ft. (23 m), 208V, 2,000W load, 208V me-
tered at the load
Circuit 2: 500 ft. (152 m), 208V, 2,000W load, 190V
metered at the load
Which of the following is the MOST appropriate tech-
nique to correct the problem in Circuit 2?
4. Which of the following MUST be on lockout devices? 1, 2, and 4 only
1. identity of the employee applying the device
2. the date the device was applied
3. the key to open the lock
4. a legend that says "Do not energize"
5. On a film set, an entertainment electrician has a sus- 125 kW
tained load of 3 - 24kW fresnels (240V) powered by
a three-phase generator set to single-phase. Which
of the following generators is the MINIMUM size re-
quired to power the luminaires?
6. A touring entertainment electrician was working at a The longer cable run
venue where a cable run to the chain motors was 100 caused a voltage drop.
ft. (30.5 m), and the motors were working properly. At
the next venue, the cable run to the chain motors is
300 ft. (91 m), and the motors are intermittent. Which
of the following is MOST likely causing this problem?
, ETCP Entertainment Electrician
Study online at https://quizlet.com/_h10acr
7. Based on the light plot above, which of the following 5
is the MINIMUM number of dimmers required?
8. There are 1,000 lb. (454 kg) of fixtures to be hung Attach all the fixtures be-
on a single-purchase counterweight batten. Which of fore loading all of the
the following is the FIRST action the entertainment counterweights.
electrician should take?
9. Which of the following is the BEST material to use schedule 40 iron pipe
when temporarily hanging 15 conventional lumi-
naires?
10. 10-ft. (3-m) truss section Conventional fixtures Moving SR: 700lb C: 1,100lb
lights Multi-cables SL:310
100 lb. (45.4 kg)
15 lb. (6.7 kg)-includes break out cables
100 lb. (45.4 kg)-includes break out cables 0.75 lb. per
ft. (1.11 kg/m)
A 50-ft. (15-m) long truss is hung on three evenly
spaced points. The truss carries 7 evenly spaced mov-
ing lights, 28 evenly spaced conventional fixtures, and
9 multi-cables ending at center. Trim is 45 ft. (13.7
m), and power is located stage right. Based on the
table and graphic above, which of the following is the
approximate weight for each point?
11. A generator is being brought in to supplement house at the house power source
power for a show. It has been decided to place the
conventional lights on the generator, with the moving
, ETCP Entertainment Electrician
Study online at https://quizlet.com/_h10acr
lights, audio, and video on the house panel. Which of
the following is the BEST location to bond the genera-
tor?
12. An entertainment electrician has the following equip- 3
ment list:
10 racks of 96 dimmers (each rack with one DMX in-
put)
1 rack of 48 dimmers (with one DMX input)
1 conventional lighting console (with 4 DMX outputs)
DMX Opto isolators as required
Assuming no two dimmers have the same DMX ad-
dress, what is the MINIMUM number of DMX univers-
es required to operate these dimmer racks from the
Convention Lighting Console?
13. An entertainment electrician is measuring voltage on 116.4V
a branch circuit. The voltage at the distribution panel
is 120V. Which of the following is the MINIMUM volt-
age allowable according to the NEC/CEC?
14. An entertainment electrician is setting up power dis- the neutral/ground bond
tribution for an event. The sole supply consists of a at the transformer sec-
generator producing 240V delta, which then feeds a ondary
75KVA step-down transformer to 120/208V wye. The
video department is requesting a separate "isolated
ground." Which of the following describes the BEST
connection point for the isolated ground?
15. Which of the following should an entertainment elec- dry ice
trician use to create a low-hanging fog effect?
16.
Study online at https://quizlet.com/_h10acr
1. Which of the following allows an entertainment elec- bull/company switch
trician to disconnect power from a system?
2. Which of the following items protects the lighting con- opto-splitter
trol system from overvoltage on the DMX cable?
3. Two lighting circuits are run from the same distribu- Use larger cabling
tion box with 120V metered at the source:
Circuit 1: 75 ft. (23 m), 208V, 2,000W load, 208V me-
tered at the load
Circuit 2: 500 ft. (152 m), 208V, 2,000W load, 190V
metered at the load
Which of the following is the MOST appropriate tech-
nique to correct the problem in Circuit 2?
4. Which of the following MUST be on lockout devices? 1, 2, and 4 only
1. identity of the employee applying the device
2. the date the device was applied
3. the key to open the lock
4. a legend that says "Do not energize"
5. On a film set, an entertainment electrician has a sus- 125 kW
tained load of 3 - 24kW fresnels (240V) powered by
a three-phase generator set to single-phase. Which
of the following generators is the MINIMUM size re-
quired to power the luminaires?
6. A touring entertainment electrician was working at a The longer cable run
venue where a cable run to the chain motors was 100 caused a voltage drop.
ft. (30.5 m), and the motors were working properly. At
the next venue, the cable run to the chain motors is
300 ft. (91 m), and the motors are intermittent. Which
of the following is MOST likely causing this problem?
, ETCP Entertainment Electrician
Study online at https://quizlet.com/_h10acr
7. Based on the light plot above, which of the following 5
is the MINIMUM number of dimmers required?
8. There are 1,000 lb. (454 kg) of fixtures to be hung Attach all the fixtures be-
on a single-purchase counterweight batten. Which of fore loading all of the
the following is the FIRST action the entertainment counterweights.
electrician should take?
9. Which of the following is the BEST material to use schedule 40 iron pipe
when temporarily hanging 15 conventional lumi-
naires?
10. 10-ft. (3-m) truss section Conventional fixtures Moving SR: 700lb C: 1,100lb
lights Multi-cables SL:310
100 lb. (45.4 kg)
15 lb. (6.7 kg)-includes break out cables
100 lb. (45.4 kg)-includes break out cables 0.75 lb. per
ft. (1.11 kg/m)
A 50-ft. (15-m) long truss is hung on three evenly
spaced points. The truss carries 7 evenly spaced mov-
ing lights, 28 evenly spaced conventional fixtures, and
9 multi-cables ending at center. Trim is 45 ft. (13.7
m), and power is located stage right. Based on the
table and graphic above, which of the following is the
approximate weight for each point?
11. A generator is being brought in to supplement house at the house power source
power for a show. It has been decided to place the
conventional lights on the generator, with the moving
, ETCP Entertainment Electrician
Study online at https://quizlet.com/_h10acr
lights, audio, and video on the house panel. Which of
the following is the BEST location to bond the genera-
tor?
12. An entertainment electrician has the following equip- 3
ment list:
10 racks of 96 dimmers (each rack with one DMX in-
put)
1 rack of 48 dimmers (with one DMX input)
1 conventional lighting console (with 4 DMX outputs)
DMX Opto isolators as required
Assuming no two dimmers have the same DMX ad-
dress, what is the MINIMUM number of DMX univers-
es required to operate these dimmer racks from the
Convention Lighting Console?
13. An entertainment electrician is measuring voltage on 116.4V
a branch circuit. The voltage at the distribution panel
is 120V. Which of the following is the MINIMUM volt-
age allowable according to the NEC/CEC?
14. An entertainment electrician is setting up power dis- the neutral/ground bond
tribution for an event. The sole supply consists of a at the transformer sec-
generator producing 240V delta, which then feeds a ondary
75KVA step-down transformer to 120/208V wye. The
video department is requesting a separate "isolated
ground." Which of the following describes the BEST
connection point for the isolated ground?
15. Which of the following should an entertainment elec- dry ice
trician use to create a low-hanging fog effect?
16.
