SUBSTATION TECHNICIAN
CERTIFICATION PROGRAM EXAM
QUESTIONS AND ANSWERS 2026
VERIFIED.
Electricity has done more to improve the __________ on earth than any other scientific
achievement. - ANS Quality of life (pg.6)
What was electricity first used for? - ANS Outdoor lighting and Industrial Work (pg.7)
What is arc lighting? - ANS A controlled short circuit created across two carbon contacts
(pg.7)
What has been called the largest machine in United States history? - ANS The US Electrical
Grid (pg.13)
What is the name of the grid that will be an enhancement to the current electrical grid? -
ANS Smart Grid (pg.13)
Explain the "Battle of the Grids". - ANS Tesla and Westinghouse team up to compete with
Edisons DC System. (pg.17)
@2026/2027 ALLRIGHTS RESERVED.
, List two of the first AC systems. - ANS 1. Gold King Mine
2. Willamette Falls
(pg. 19,20)
What was wrong with early construction practices? - ANS # of wires blocked out the sunlight,
workers were getting electrocuted trying to access overhead poles. (pg. 24)
What is the DELTA system? - ANS System that uses a generator with the ends of the windings
all connected to each other so that the three windings form a equilateral triangle. (pg.26)
What is a WYE System? - ANS One end of each winding connected to form a star in the shape
of a wye. (pg.26)
What impact did Roosevelts New Deal of the 1930s have? - ANS Brought electricity to
farmers and rural areas. (pg.30)
List four types of power companies and describe their functions. - ANS Municipalities
Rural Electric Cooperatives
Investor Owned Utilities
Public Utility Districts, Public Power Districts
(Pg.34)
Anyone can buy stock in this type of company? - ANS Investor Owned Utility (Pg. 34)
What are city owned power companies called? - ANS Municipalities (Pg.37)
@2026/2027 ALLRIGHTS RESERVED.
CERTIFICATION PROGRAM EXAM
QUESTIONS AND ANSWERS 2026
VERIFIED.
Electricity has done more to improve the __________ on earth than any other scientific
achievement. - ANS Quality of life (pg.6)
What was electricity first used for? - ANS Outdoor lighting and Industrial Work (pg.7)
What is arc lighting? - ANS A controlled short circuit created across two carbon contacts
(pg.7)
What has been called the largest machine in United States history? - ANS The US Electrical
Grid (pg.13)
What is the name of the grid that will be an enhancement to the current electrical grid? -
ANS Smart Grid (pg.13)
Explain the "Battle of the Grids". - ANS Tesla and Westinghouse team up to compete with
Edisons DC System. (pg.17)
@2026/2027 ALLRIGHTS RESERVED.
, List two of the first AC systems. - ANS 1. Gold King Mine
2. Willamette Falls
(pg. 19,20)
What was wrong with early construction practices? - ANS # of wires blocked out the sunlight,
workers were getting electrocuted trying to access overhead poles. (pg. 24)
What is the DELTA system? - ANS System that uses a generator with the ends of the windings
all connected to each other so that the three windings form a equilateral triangle. (pg.26)
What is a WYE System? - ANS One end of each winding connected to form a star in the shape
of a wye. (pg.26)
What impact did Roosevelts New Deal of the 1930s have? - ANS Brought electricity to
farmers and rural areas. (pg.30)
List four types of power companies and describe their functions. - ANS Municipalities
Rural Electric Cooperatives
Investor Owned Utilities
Public Utility Districts, Public Power Districts
(Pg.34)
Anyone can buy stock in this type of company? - ANS Investor Owned Utility (Pg. 34)
What are city owned power companies called? - ANS Municipalities (Pg.37)
@2026/2027 ALLRIGHTS RESERVED.
