2A654 CDC Exam Questions and Correct
Answers
Question 1
Which inspection augments the basic post flight (BPO)?
Correct Answer
Hourly post flight
Question 2
Which is a feature of a T-handle type torque wrench?
Correct Answer
Has a preset torque
Question 3
Which type of screw would most likely be found on fuel systems electrical
components?
Correct Answer
Roundhead
Question 4
When blow purging an aircraft fuel tank, what step should be taken immediately after
removing the access door?
Correct Answer
Place the duct in the tank opening
Question 5
Which atmosphere condition is considered "entry-safe" in a fuel tank without foam?
Correct Answer
600 parts per million (PPM)
Page 1 of 118
,Question 6
When removing fire suppression foam from an aircraft fuel tank, you should
Correct Answer
wear chemical-resistant gloves.
Question 7
A job guide is an example of
Correct Answer
an operations and maintenance (O&M) technical order (TO)
Question 8
What are the three types of wings?
Correct Answer
Operational, air base, and specialized mission wings.
Question 9
When injecting using high pressure injection gun, which step will protect the aircraft
structure?
Correct Answer
Providing an air escape
Question 10
An over-the-shoulder evaluation of a technician or supervisor accomplishing a
maintenance action by QA personnel is a
Correct Answer
personnel evaluation
Page 2 of 118
,Question 11
Which step should be taken first when attempting to locate a leak exit point on or
near a common tank boundry?
Correct Answer
Defuel the outboard tank
Question 12
Which equipment in a fuel systems repair facility is used to extract fuel vapors outside
the facility during such operations as defueling and air purging?
Correct Answer
Exhaust fan
Question 13
Which character of an Air Force specialty code (AFSC) identifies the skill level?
Correct Answer
Fourth
Question 14
Rubber buckets must be emptied after use in order to prevent a
Correct Answer
safety or spill hazard
Question 15
You are using a multimeter to measure voltage in an electrical circuit. During the
measurement, the letters "OL" appear on the digital display to indicate that the
Correct Answer
circuit voltage is higher than the highest range selected
Page 3 of 118
, Question 16
Which minimum diameter safety wire should be installed on bolts having a .059-inch
drilled hole?
Correct Answer
.032-inch
Question 17
Which of the following is a dynamic inspection system designed to improve aircraft
combat capability
Correct Answer
Maintenace standardization and evaluation program (MSEP)
Question 18
Which is the most important factor in isolating a fuel cell leak?
Correct Answer
Knowledge of the cavity-drain system
Question 19
The fuel cell is plasticized prior to storage in order to
Correct Answer
prevent cracking and drying
Question 20
Which footwear items are authorized for wear inside a fuel cell?
Correct Answer
Static resistant or neoprene booties
Page 4 of 118
Answers
Question 1
Which inspection augments the basic post flight (BPO)?
Correct Answer
Hourly post flight
Question 2
Which is a feature of a T-handle type torque wrench?
Correct Answer
Has a preset torque
Question 3
Which type of screw would most likely be found on fuel systems electrical
components?
Correct Answer
Roundhead
Question 4
When blow purging an aircraft fuel tank, what step should be taken immediately after
removing the access door?
Correct Answer
Place the duct in the tank opening
Question 5
Which atmosphere condition is considered "entry-safe" in a fuel tank without foam?
Correct Answer
600 parts per million (PPM)
Page 1 of 118
,Question 6
When removing fire suppression foam from an aircraft fuel tank, you should
Correct Answer
wear chemical-resistant gloves.
Question 7
A job guide is an example of
Correct Answer
an operations and maintenance (O&M) technical order (TO)
Question 8
What are the three types of wings?
Correct Answer
Operational, air base, and specialized mission wings.
Question 9
When injecting using high pressure injection gun, which step will protect the aircraft
structure?
Correct Answer
Providing an air escape
Question 10
An over-the-shoulder evaluation of a technician or supervisor accomplishing a
maintenance action by QA personnel is a
Correct Answer
personnel evaluation
Page 2 of 118
,Question 11
Which step should be taken first when attempting to locate a leak exit point on or
near a common tank boundry?
Correct Answer
Defuel the outboard tank
Question 12
Which equipment in a fuel systems repair facility is used to extract fuel vapors outside
the facility during such operations as defueling and air purging?
Correct Answer
Exhaust fan
Question 13
Which character of an Air Force specialty code (AFSC) identifies the skill level?
Correct Answer
Fourth
Question 14
Rubber buckets must be emptied after use in order to prevent a
Correct Answer
safety or spill hazard
Question 15
You are using a multimeter to measure voltage in an electrical circuit. During the
measurement, the letters "OL" appear on the digital display to indicate that the
Correct Answer
circuit voltage is higher than the highest range selected
Page 3 of 118
, Question 16
Which minimum diameter safety wire should be installed on bolts having a .059-inch
drilled hole?
Correct Answer
.032-inch
Question 17
Which of the following is a dynamic inspection system designed to improve aircraft
combat capability
Correct Answer
Maintenace standardization and evaluation program (MSEP)
Question 18
Which is the most important factor in isolating a fuel cell leak?
Correct Answer
Knowledge of the cavity-drain system
Question 19
The fuel cell is plasticized prior to storage in order to
Correct Answer
prevent cracking and drying
Question 20
Which footwear items are authorized for wear inside a fuel cell?
Correct Answer
Static resistant or neoprene booties
Page 4 of 118
