26411-20 PRACTICE EXAM MEDIUM-
VOLTAGE QUESTIONS WITH
DETAILED ANSWERS 2026
A knee in a leakage current-versus-voltage plot indicates a _____. -
ANSWERSbreakdown current
A quick test that can be made to determine if an installation is good is known as a(n)
_____. - ANSWERSgo/no-go test
Proof tests are made at _____. - ANSWERS60% of the original factory voltage
Splices made with conductors of different sizes can be MOST easily accommodated
using a(n) _____. - ANSWERSheat-shrink kit
To finish a splice and ensure complete protection, it should be covered with _____. -
ANSWERSfour layers of vinyl electrical tape
A suitable connector for medium-voltage cable splices is a compression or _____. -
ANSWERScrimp type
Acceptance testing calls for a MAXIMUM value of _____. - ANSWERS80% of the
factory test voltage
Insulation must protect against tracking damage and _____. - ANSWERSflashover
damage
Materials typically used for cable jackets include neoprene, lead, and _____. -
ANSWERSPVC
Two methods used to provide stress control for medium-voltage cable terminations are
geometric and _____. - ANSWERScapacitive
Which termination class is the only one that provides a seal against the external
environment? - ANSWERSClass 1
The abrasive recommended for cleaning cable during a splice is _____. -
ANSWERS120-grit abrasive cloth
The power rating of a voltage regulator should be based on the maximum power output
capability of the tester multiplied by a factor of about _____. - ANSWERS1.3
VOLTAGE QUESTIONS WITH
DETAILED ANSWERS 2026
A knee in a leakage current-versus-voltage plot indicates a _____. -
ANSWERSbreakdown current
A quick test that can be made to determine if an installation is good is known as a(n)
_____. - ANSWERSgo/no-go test
Proof tests are made at _____. - ANSWERS60% of the original factory voltage
Splices made with conductors of different sizes can be MOST easily accommodated
using a(n) _____. - ANSWERSheat-shrink kit
To finish a splice and ensure complete protection, it should be covered with _____. -
ANSWERSfour layers of vinyl electrical tape
A suitable connector for medium-voltage cable splices is a compression or _____. -
ANSWERScrimp type
Acceptance testing calls for a MAXIMUM value of _____. - ANSWERS80% of the
factory test voltage
Insulation must protect against tracking damage and _____. - ANSWERSflashover
damage
Materials typically used for cable jackets include neoprene, lead, and _____. -
ANSWERSPVC
Two methods used to provide stress control for medium-voltage cable terminations are
geometric and _____. - ANSWERScapacitive
Which termination class is the only one that provides a seal against the external
environment? - ANSWERSClass 1
The abrasive recommended for cleaning cable during a splice is _____. -
ANSWERS120-grit abrasive cloth
The power rating of a voltage regulator should be based on the maximum power output
capability of the tester multiplied by a factor of about _____. - ANSWERS1.3
