CUSP - T&D EXAM STUDY GUIDE 2025/2026
COMPLETE QUESTIONS BANK AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <BRAND NEW VERSION>
1. As per CAN/ULC S801, on an electrical distribution overhead utility line
circuit, verification of voltage absence can be achieved by::
Answer Using an approved voltage detector.
2. Isolation and tagging (no locks) is acceptable on an overhead
distribution circuit under some of the following conditions, EXCEPT for::
Answer The isolation can be operated from the ground directly at the base of a structure.
3. Isolation and tagging (no locks) is acceptable for an overhead
distribution circuit under some of the following conditions::
Answer 1. The isolation point is a physical and visual like a line cut or riser removed.
2. The isolation point can only be operated by the operating authority or qualified worker.
3. The isolation point is protected from unauthorized access such as vertical height spacing.
mailto:https://www.stuvia.com/user/Wisdoms
, 4. Consider that a circuit has been isolated, tagged and grounded.
workers returning the next day must::
Answer Visually check grounds to verify they are in good order, secure and test for voltage.
5. For lockout purposes, energy isolating devices shall be labelled or
marked using a standardized nomenclature and format to indicate their
function. Iden- tification shall include::
Answer The equipment type, energy type, and magnitude.
6. Utilities often use a permitting system due to special circumstances of
which conventional lockout is impracticable. The following is NOT a
justified approach to this process::
Answer The isolation points are only simple single step actions.
7. A high voltage utility or electrical company is authorized to use
Complex Lockout (tag permitting) under what regulatory condition::
Answer A variance application has been approved by the provincial authority.
8. Utilities often use a permitting system due to special circumstances of
which conventional lockout is impracticable. The following are justified
approaches to this process::
Answer 1. The isolation points are located in remote areas with diflcult or restricted access.
2. The length of time to perform the lockout is impracticable.
3. Excessive numbers of persons required to lockout.
mailto:https://www.stuvia.com/user/Wisdoms
, 9. Work on a distribution line must consider the following items when
perform- ing isolation and de-energizing of the circuit.::
Answer 1. Whether there are multiple sources of energy (loop feed) on the circuit.
2. Is the line isolating device capable of interrupting load.
3. Is the line to be subject to inductive or capacitive charge.
mailto:https://www.stuvia.com/user/Wisdoms
COMPLETE QUESTIONS BANK AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <BRAND NEW VERSION>
1. As per CAN/ULC S801, on an electrical distribution overhead utility line
circuit, verification of voltage absence can be achieved by::
Answer Using an approved voltage detector.
2. Isolation and tagging (no locks) is acceptable on an overhead
distribution circuit under some of the following conditions, EXCEPT for::
Answer The isolation can be operated from the ground directly at the base of a structure.
3. Isolation and tagging (no locks) is acceptable for an overhead
distribution circuit under some of the following conditions::
Answer 1. The isolation point is a physical and visual like a line cut or riser removed.
2. The isolation point can only be operated by the operating authority or qualified worker.
3. The isolation point is protected from unauthorized access such as vertical height spacing.
mailto:https://www.stuvia.com/user/Wisdoms
, 4. Consider that a circuit has been isolated, tagged and grounded.
workers returning the next day must::
Answer Visually check grounds to verify they are in good order, secure and test for voltage.
5. For lockout purposes, energy isolating devices shall be labelled or
marked using a standardized nomenclature and format to indicate their
function. Iden- tification shall include::
Answer The equipment type, energy type, and magnitude.
6. Utilities often use a permitting system due to special circumstances of
which conventional lockout is impracticable. The following is NOT a
justified approach to this process::
Answer The isolation points are only simple single step actions.
7. A high voltage utility or electrical company is authorized to use
Complex Lockout (tag permitting) under what regulatory condition::
Answer A variance application has been approved by the provincial authority.
8. Utilities often use a permitting system due to special circumstances of
which conventional lockout is impracticable. The following are justified
approaches to this process::
Answer 1. The isolation points are located in remote areas with diflcult or restricted access.
2. The length of time to perform the lockout is impracticable.
3. Excessive numbers of persons required to lockout.
mailto:https://www.stuvia.com/user/Wisdoms
, 9. Work on a distribution line must consider the following items when
perform- ing isolation and de-energizing of the circuit.::
Answer 1. Whether there are multiple sources of energy (loop feed) on the circuit.
2. Is the line isolating device capable of interrupting load.
3. Is the line to be subject to inductive or capacitive charge.
mailto:https://www.stuvia.com/user/Wisdoms
