LIRR SIGNALS AND DEFINITIONS EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS 2025
, Clear-Block - ANSWERSProceed; manual block clear.
Stop-signal - ANSWERSStop
Clear - ANSWERSProceed
Flashing Slow-approach - ANSWERSTrain will proceed in accordance with signal
indication within interlocking limits and after clearing the interlocking, proceed under
absolute clear indication to the next interlocking.
Slow-clear - ANSWERSProceed; Slow speed within interlocking limits.
Absolute-Slow-clear - ANSWERSProceed; Slow speed within interlocking limits. Track
clear to next interlocking signal. Approach next interlocking signal prepared to stop.
Slow-approach - ANSWERSProceed approaching next signal prepared to stop. Slow
speed within interlocking limits.
Restricting - ANSWERSProceed at restricted speed
Stop-and-proceed - ANSWERSStop; then proceed at Restricted speed.
Block-limit - ANSWERSLimit of the block
Approach Block-limit - ANSWERSProceed approaching next block-limit signal prepared
to stop. Train exceeding Medium speed must at once reduce to that speed.
Stop signal / Train order - ANSWERSStop/Orders
Train-order - ANSWERSOrders
Caution Indicator - ANSWERSFacing point switch(es) open. Trains exceeding Slow
speed must at once reduce to that speed approaching switch or switches prepared to
stop.
Absolute-Clear - ANSWERSProceed; track clear to next interlocking signal. Approach
next interlocking signal prepared to stop.
Approach-medium - ANSWERSProceed approaching next signal at Medium speed.
Medium-clear - ANSWERSProceed; Medium speed within interlocking limits.
QUESTIONS WITH COMPLETE
SOLUTIONS 2025
, Clear-Block - ANSWERSProceed; manual block clear.
Stop-signal - ANSWERSStop
Clear - ANSWERSProceed
Flashing Slow-approach - ANSWERSTrain will proceed in accordance with signal
indication within interlocking limits and after clearing the interlocking, proceed under
absolute clear indication to the next interlocking.
Slow-clear - ANSWERSProceed; Slow speed within interlocking limits.
Absolute-Slow-clear - ANSWERSProceed; Slow speed within interlocking limits. Track
clear to next interlocking signal. Approach next interlocking signal prepared to stop.
Slow-approach - ANSWERSProceed approaching next signal prepared to stop. Slow
speed within interlocking limits.
Restricting - ANSWERSProceed at restricted speed
Stop-and-proceed - ANSWERSStop; then proceed at Restricted speed.
Block-limit - ANSWERSLimit of the block
Approach Block-limit - ANSWERSProceed approaching next block-limit signal prepared
to stop. Train exceeding Medium speed must at once reduce to that speed.
Stop signal / Train order - ANSWERSStop/Orders
Train-order - ANSWERSOrders
Caution Indicator - ANSWERSFacing point switch(es) open. Trains exceeding Slow
speed must at once reduce to that speed approaching switch or switches prepared to
stop.
Absolute-Clear - ANSWERSProceed; track clear to next interlocking signal. Approach
next interlocking signal prepared to stop.
Approach-medium - ANSWERSProceed approaching next signal at Medium speed.
Medium-clear - ANSWERSProceed; Medium speed within interlocking limits.
