Which indicator confirms that the EOT pressure has vented to zero?

Which indicator confirms that the EOT pressure has vented to zero?

• A. HEU indicates pressure at zero
• B. EOT gauge reads zero
• C. No lights on the display
• D. Buzzer sounds continuously

Answer: (A)

When venting reaches completion, you need a definitive signal that the pressure is actually zero. The HEU indicator is designed to show zero pressure, providing a clear, unambiguous confirmation that the EOT venting has reached the zero state. A gauge reading zero can be misleading if the instrument is stuck or not functioning, whereas the HEU is the explicit indicator that the system is at zero. Lights or a continuous buzzer aren’t used to confirm this condition—they either don’t reflect the venting state or indicate a fault or alarm. So the HEU indicating zero is the reliable proof that the EOT pressure has vented to zero.

When venting reaches completion, you need a definitive signal that the pressure is actually zero. The HEU indicator is designed to show zero pressure, providing a clear, unambiguous confirmation that the EOT venting has reached the zero state. A gauge reading zero can be misleading if the instrument is stuck or not functioning, whereas the HEU is the explicit indicator that the system is at zero. Lights or a continuous buzzer aren’t used to confirm this condition—they either don’t reflect the venting state or indicate a fault or alarm. So the HEU indicating zero is the reliable proof that the EOT pressure has vented to zero.