CHT Question and Answer [2026] | UPDATED ACTUAL Exam | A+ Verified

CHT Question and Answer [2026] | UPDATED
ACTUAL Exam | A+ Verified
• What is the toxic gas to be concerned with when dealing with CHT and what does the
abbreviation stand for -✓✓ HS2(Hydrogen sulfide)

• At what % does the Duty pump start/Stop -✓✓ Starts @30%, stops @15%

• There are __ CHT tanks on board -✓✓ 2

• If Duty fails when does Standby kick on -✓✓ Starts @60%, Ends @15%

• Whats an undercurrent trip -✓✓ When the pump becomes airbound & loses suction

• What causes an undercurrent trip -✓✓ Misalignment, kink in hose, LP Air loss

• Which alarms are audible -✓✓ HS2, High & Los air flow

• How to fix an undercurrent trip -✓✓ Big red button, both switches off & turn check to
prime valves

• What type of Pumps do we use -✓✓ Cyclone Eddy

• What alarms are in both AFT & FWD CHT -✓✓ All alarms

• What does CHT stand for -✓✓ Collect, Hold & Transfer

• High alarm levels -✓✓ Like police sirens

• Describe HS2 alarm -✓✓ Flash red lights, bells & whistles

• Valve room 1 -✓✓ 6-39-0-Q FWD CHT

• Valve room 2 -✓✓ 6-200-0-Q AFT CHT

• Valve room 3 -✓✓ 4-54-4-Q FWD trash line

• Valve room 4 -✓✓ 4-59-7-Q MA berthing

• How many Valve rooms are there -✓✓ 9

• 20 PPM'S is -✓✓ Caution