The Pantograph DOWN button will be left in the_______ position between the limits specified in the Drop Pantograph Instruction Form D:

The Pantograph DOWN button will be left in the_______ position between the limits specified in the Drop Pantograph Instruction Form D:

• A. DOWN.
• B. UP.
• C. NEUTRAL.
• D. OFF.

Answer: (A)

Pantograph control is a simple UP or DOWN command that tells the system whether the current collector should be raised or lowered. The Drop Pantograph Instruction Form D defines the segment of track where the pantograph must remain lowered for clearance. Within those limits, you keep the pantograph DOWN by leaving the DOWN pushbutton in the DOWN position so the system stays commanded to stay lowered. This ensures there’s no unintended re-raise as you pass through the designated limits and helps prevent contact with overhead wires or drag. If you were to set a different state, like UP, neutral, or OFF, the pantograph could rise or not be reliably held down, which is not acceptable for the specified limits.

Pantograph control is a simple UP or DOWN command that tells the system whether the current collector should be raised or lowered. The Drop Pantograph Instruction Form D defines the segment of track where the pantograph must remain lowered for clearance. Within those limits, you keep the pantograph DOWN by leaving the DOWN pushbutton in the DOWN position so the system stays commanded to stay lowered. This ensures there’s no unintended re-raise as you pass through the designated limits and helps prevent contact with overhead wires or drag. If you were to set a different state, like UP, neutral, or OFF, the pantograph could rise or not be reliably held down, which is not acceptable for the specified limits.