NEW ATE 553 FINAL EXAM WITH Q&A NEWLY
MODIFIED 2025/2026 LATEST
To lower the higher cost, a direct burial technique is used for the underground
service. --
ANSWER--True
The direct burial technique allows easy maintenance. -- ANSWER--False
In the relatively large scale building, choose the correct order of the electrical
transmission/distribution system components. -- ANSWER--Transformer,
Switchboard, Distribution panel, Receptacles
Lower initial cost Outdoor Transformer -- ANSWER--Outdoor Transformer
Safety is the biggest issue -- ANSWER--Indoor Transformer
Easy maintenance and replacement -- ANSWER--Outdoor Transformer
Transformer vault can be installed for extra safety -- ANSWER--Indoor
Transformer
Page 1 of 62
,Regarding distribution systems, which is NOT correct? -- ANSWER--Busduct
can be connected by welding or bolting technique.
In the series circuit, the same current flows through each element. -- ANSWER-
-True
The standard arrangement in the building wiring is a series circuit. --
ANSWER--False
All luminaires, receptacles, and other units are connected in parallel. --
ANSWER--True
Which is NOT correct below? -- ANSWER--A high load factor indicates worse
energy performance of the building than the one with a low Load Factor
Encourage off-peak use of electricity by offering a lower energy rate for
consumption during off-peak hours. -- ANSWER--Utility-sponsored demand
control technique
Electric loads are connected and disconnected to level off the demand peaks by
the user. -- ANSWER--User demand control technique
Which is NOT correct about Direct Current (DC) and Alternating Current
(AC)? -- ANSWER--DC: Same voltage flows through each element.
Page 2 of 62
,Metering system goes to alarm when a pre-determined demand level is
exceeded. --
ANSWER--Level 2: Demand Metering Alarm
Comparing the actual energy usage rate to an ideal usage rate, then adjusting the
total energy used within a metering interval. -- ANSWER--Level 4: Ideal Curve
Control
What does NEC stand for? -- ANSWER--National Electrical Code
Overhead service is a relatively low cost, compared to the underground service.
-- ANSWER-True
If the service distance becomes longer than a few hundred feet, the underground
service is preferred. -- ANSWER--False
The same voltage flows through each element in the parallel circuit. --
ANSWER--True
What is the unit of energy used? -- ANSWER--Wh or kWh
Page 3 of 62
, Calculate a daily energy consumption by the appliances below. [Toaster (1000
W): 15 minutes/day, Coffee maker (500 W): 3 hours/day, Washing machine
(3000 W): 30 minutes/day, Dryer (3000 W): 1 hour/day, Iron (1400 W): 30
minutes/day] -- ANSWER-6.95 kWh
If the avg. energy cost is $ 0.15 / kWh, what would be the energy cost for 30
days? --
ANSWER--31.275
Regarding electrical lighting system control, which is correct? -- ANSWER--
The most common type of motion sensor is the infrared type.
Regarding the electrical lighting system design, Lighting loads are continuous
loads. --
ANSWER--True
Regarding the electrical lighting system design, Continuous loads must be
100% of the rating of the overcurrent protection. -- ANSWER--False
Regarding the electrical lighting system design, Small circuit breakers are 100%
rated. --
ANSWER--False
Page 4 of 62
MODIFIED 2025/2026 LATEST
To lower the higher cost, a direct burial technique is used for the underground
service. --
ANSWER--True
The direct burial technique allows easy maintenance. -- ANSWER--False
In the relatively large scale building, choose the correct order of the electrical
transmission/distribution system components. -- ANSWER--Transformer,
Switchboard, Distribution panel, Receptacles
Lower initial cost Outdoor Transformer -- ANSWER--Outdoor Transformer
Safety is the biggest issue -- ANSWER--Indoor Transformer
Easy maintenance and replacement -- ANSWER--Outdoor Transformer
Transformer vault can be installed for extra safety -- ANSWER--Indoor
Transformer
Page 1 of 62
,Regarding distribution systems, which is NOT correct? -- ANSWER--Busduct
can be connected by welding or bolting technique.
In the series circuit, the same current flows through each element. -- ANSWER-
-True
The standard arrangement in the building wiring is a series circuit. --
ANSWER--False
All luminaires, receptacles, and other units are connected in parallel. --
ANSWER--True
Which is NOT correct below? -- ANSWER--A high load factor indicates worse
energy performance of the building than the one with a low Load Factor
Encourage off-peak use of electricity by offering a lower energy rate for
consumption during off-peak hours. -- ANSWER--Utility-sponsored demand
control technique
Electric loads are connected and disconnected to level off the demand peaks by
the user. -- ANSWER--User demand control technique
Which is NOT correct about Direct Current (DC) and Alternating Current
(AC)? -- ANSWER--DC: Same voltage flows through each element.
Page 2 of 62
,Metering system goes to alarm when a pre-determined demand level is
exceeded. --
ANSWER--Level 2: Demand Metering Alarm
Comparing the actual energy usage rate to an ideal usage rate, then adjusting the
total energy used within a metering interval. -- ANSWER--Level 4: Ideal Curve
Control
What does NEC stand for? -- ANSWER--National Electrical Code
Overhead service is a relatively low cost, compared to the underground service.
-- ANSWER-True
If the service distance becomes longer than a few hundred feet, the underground
service is preferred. -- ANSWER--False
The same voltage flows through each element in the parallel circuit. --
ANSWER--True
What is the unit of energy used? -- ANSWER--Wh or kWh
Page 3 of 62
, Calculate a daily energy consumption by the appliances below. [Toaster (1000
W): 15 minutes/day, Coffee maker (500 W): 3 hours/day, Washing machine
(3000 W): 30 minutes/day, Dryer (3000 W): 1 hour/day, Iron (1400 W): 30
minutes/day] -- ANSWER-6.95 kWh
If the avg. energy cost is $ 0.15 / kWh, what would be the energy cost for 30
days? --
ANSWER--31.275
Regarding electrical lighting system control, which is correct? -- ANSWER--
The most common type of motion sensor is the infrared type.
Regarding the electrical lighting system design, Lighting loads are continuous
loads. --
ANSWER--True
Regarding the electrical lighting system design, Continuous loads must be
100% of the rating of the overcurrent protection. -- ANSWER--False
Regarding the electrical lighting system design, Small circuit breakers are 100%
rated. --
ANSWER--False
Page 4 of 62
