PJM PRACTICE EXAM – DOCSITY QUESTIONS LATEST UPDATE VERIFIED

PJM PRACTICE EXAM – DOCSITY QUESTIONS LATEST UPDATE VERIFIED Example questions 1. What is the maximum duration for which a fossil steam unit is considered fuel limited? 16 hours 120 hours 36 hours 72 hours 2. What is the time duration after which generation is disconnected when the frequency drops to 60Hz? 5 seconds 10 seconds 15 seconds 0 seconds 3. When ordered, a 5% voltage reduction should be taken on: The 230 kV system The 500 kV system The distribution system Predetermined tie lines 4. Explain the significance of Lagging and Leading VAR reserves in the operation of a generator within the PJM Interconnection. Lagging VARs help maintain voltage levels while Leading VARs reduce system losses. Lagging VARs are used to increase syCsotenmfigfurerequency while Leading VARs stabilize load. Lagging VARs are essential for reactive power absorption while Leading VARs are for reactive power generation. Take this test Lagging VARs are only relevant during peak demand, while Leading VARs are used during off-peak hours. 5. What is the minimum generation capacity required per mile of energized 500 kV line according to PJM regulations? 50 MW 20 MW 30 MW 100 MW 6. Which entity is responsible for issuing the NERC Energy Emergency Alert levels? PJM Shift Supervisor System Operator Reliability Coordinator Balancing Authority 7. Explain the relationship between PJM interchange and ACE. What does an increase in PJM interchange indicate about ACE? ACE decreases as PJM interchange increases due to reduced demand. ACE remains constant regardless of PJM interchange changes. ACE increases as PJM interchange increases, indicating a higher flow of electricity into PJM. ACE fluctuates randomly with PJM interchange without a defined relationship. 8. What is the maximum number of hours of fuel a fossil steam unit can have at maximum capacity to be bid at minimum emergency? 24 hours