Operator-controlled push-buttons are only pressed when you wish to disengage the nitrous oxide system.

• A. Sometimes
• B. False
• C. True
• D. Never

Answer: (B)

A key idea here is how nitrous oxide delivery is actually controlled: you actively engage the system to start delivering nitrous, and you disengage it to stop. The operator uses a control that initiates the nitrous flow when extra power is desired, not just a button pressed to shut it off. In most installations there’s a dedicated engage control (often a momentary or latched switch) and a separate control to disengage or a default off position. So the nitrous system isn’t only operated to disengage; it’s engaged when power boost is needed and then disengaged when it’s no longer required. That’s why the statement is false.