TH-73 Systems CAI Questions with actual
answers 2025.
Which of the following is a mission capability of the TH73? - ANSWER: NVG Flight,
External Cargo, Instrument Flight
What is the highest point on the TH-73A? - ANSWER: Top of the vertical stabilizer
What engine powers the TH-73A? - ANSWER: PT6B-37A Pratt Whitney
Which of the following allows you to move the flight controls? - ANSWER: The hydraulic
servos
The PT6B-37A engine is a ______ design? - ANSWER: Turboshaft
T/F - The electrical system provides both AC and DC power? - ANSWER: True
The overhead cockpit control panel contains the electrical control panel and the
______? - ANSWER: Circuit breaker panel
What PFD format will you primarily use during the initial stages of training? - ANSWER:
Basic
Which of the following comprise the two parts of the PFD? - ANSWER: Upper part -
Primary Flight Instrument
Lower part - Navigation Display
When would essential format be used on the PFD? - ANSWER: When the DU fails, at
the pilot's discretion
Where is the ESIS located? - ANSWER: Forward instrument panel
, T/F - The ESIS is powered by the battery bus and there is no backup battery internal or
external of the indicator? - ANSWER: True
Which alert messages are always shown at the top of the list in the CAS window? -
ANSWER: Warnings
T/F - Scrolling through the CAS window shows more alert messages - ANSWER: True
Which of the following can be used to acknowledge the MWL and MCL or time critical
warning/caution? - ANSWER: Master reset pushbutton
MWL/MCL pushbutton
Correcting the condition that caused the alert
T/F - In the event of a failure of all flight displays use the standby instrument located on
the upper center portion of the instrument panel to complete the current flight -
ANSWER: True
In the event of a PFD malfunction, which of the following modes does the MFD
automatically revert to for continued flight operations - ANSWER: Essential
In the event of a single display failure in which the blank screen is the MFD, which of the
following can the pilot select to add secondary engine and airframe indications? -
ANSWER: TO ESSNTL
After a MISCMP-P caution message illuminates, which of the following buttons can the
pilot press to check the difference in the values? - ANSWER: EICAS BACKUP
If a MISCMP-P caution message is accompanied by and ENG OUT warning and aural
tone, what is the suspected failure? - ANSWER: DAU channel single failure
If a loss of one or more EICAS parameters (N1, N2, NR, or ITT) is indicated, which of
the following buttons can the pilot push to review the affected parameter on the other
DAU channel? - ANSWER: EICAS BACKUP
What provides drive for the engine accessory gear box? - ANSWER: Gas Generator
Turbine
What happens to the engine airflow in the combustion chamber? - ANSWER: Fuel/air
mixture is ignited
What does the centrifugal impeller do to the airflow? - ANSWER: Compresses the air
answers 2025.
Which of the following is a mission capability of the TH73? - ANSWER: NVG Flight,
External Cargo, Instrument Flight
What is the highest point on the TH-73A? - ANSWER: Top of the vertical stabilizer
What engine powers the TH-73A? - ANSWER: PT6B-37A Pratt Whitney
Which of the following allows you to move the flight controls? - ANSWER: The hydraulic
servos
The PT6B-37A engine is a ______ design? - ANSWER: Turboshaft
T/F - The electrical system provides both AC and DC power? - ANSWER: True
The overhead cockpit control panel contains the electrical control panel and the
______? - ANSWER: Circuit breaker panel
What PFD format will you primarily use during the initial stages of training? - ANSWER:
Basic
Which of the following comprise the two parts of the PFD? - ANSWER: Upper part -
Primary Flight Instrument
Lower part - Navigation Display
When would essential format be used on the PFD? - ANSWER: When the DU fails, at
the pilot's discretion
Where is the ESIS located? - ANSWER: Forward instrument panel
, T/F - The ESIS is powered by the battery bus and there is no backup battery internal or
external of the indicator? - ANSWER: True
Which alert messages are always shown at the top of the list in the CAS window? -
ANSWER: Warnings
T/F - Scrolling through the CAS window shows more alert messages - ANSWER: True
Which of the following can be used to acknowledge the MWL and MCL or time critical
warning/caution? - ANSWER: Master reset pushbutton
MWL/MCL pushbutton
Correcting the condition that caused the alert
T/F - In the event of a failure of all flight displays use the standby instrument located on
the upper center portion of the instrument panel to complete the current flight -
ANSWER: True
In the event of a PFD malfunction, which of the following modes does the MFD
automatically revert to for continued flight operations - ANSWER: Essential
In the event of a single display failure in which the blank screen is the MFD, which of the
following can the pilot select to add secondary engine and airframe indications? -
ANSWER: TO ESSNTL
After a MISCMP-P caution message illuminates, which of the following buttons can the
pilot press to check the difference in the values? - ANSWER: EICAS BACKUP
If a MISCMP-P caution message is accompanied by and ENG OUT warning and aural
tone, what is the suspected failure? - ANSWER: DAU channel single failure
If a loss of one or more EICAS parameters (N1, N2, NR, or ITT) is indicated, which of
the following buttons can the pilot push to review the affected parameter on the other
DAU channel? - ANSWER: EICAS BACKUP
What provides drive for the engine accessory gear box? - ANSWER: Gas Generator
Turbine
What happens to the engine airflow in the combustion chamber? - ANSWER: Fuel/air
mixture is ignited
What does the centrifugal impeller do to the airflow? - ANSWER: Compresses the air
