Page 1 of 146
02AF1-GENERAL AND POWERPLANT WRITTEN
EXAM PRACTICE TEST EXAM WITH COMPLETE
350 QUESTIONS AND CORRECT DETAILED
SOLUTIONS JUST RELEASED THIS YEAR
QUESTION: For sketching purposes, almost all objects are composed of one or some
combination of six basic shapes. What are the six basic shapes? - ANSWER✔✔Triangle, circle,
cube, cylinder, cone, sphere.
QUESTION: Solve the equation.
[(4 x -3)+(-9 x 2)] ÷ 2 = ? - ANSWER✔✔Answer: -15
[(4 x -3)+(-9 x 2)] ÷ 2 =
[-12 + -18] ÷ 2 =
-30 ÷ 2 = -15
QUESTION: A certificated mechanic without an inspection authorization who signs the
appropriate block on FAA Form 337 is doing what? - ANSWER✔✔Certifying that the work was
done in accordance with the requirements of 14 CFR Part 43.
, Page 2 of 146
QUESTION: Which is correct in reference to electrical resistance?
a) An electrical device that has a high resistance will use more power than one with a low
resistance with the same applied voltage.
b) Two electrical devices will have the same combined resistance if they are connected in series
as they will have if connected in parallel.
c) If one of three bulbs in a parallel lighting circuit is removed, the total resistance of the circuit
will become greater. - ANSWER✔✔If one of three bulbs in a parallel lighting circuit is removed,
the total resistance of the circuit will become greater.
QUESTION: Specifications pertaining to an aircraft model manufactured under a type certificate
of which less than 50 are shown on the FAA Aircraft Registry, can be found where? -
ANSWER✔✔Aircraft listing.
QUESTION: Determine the proper tension for a 3/16-inch cable (7 x 19 extra flex) if the
temperature is 87°F.
(See Diagram) - ANSWER✔✔125 Pounds
QUESTION: Generally, when an induction fire occurs during starting of a reciprocating engine,
what should be the first course of action? - ANSWER✔✔Continue cranking and start the engine
if possible.
, Page 3 of 146
QUESTION: A 12-volt electric motor has 1,000 watts input and 1 horsepower output.
Maintaining the same efficiency, how much input power will a 24-volt, 1-horsepower electric
motor require?
(Note: 1 horsepower = 746 watts) - ANSWER✔✔1,000 watts
QUESTION: In performing a dye penetrant inspection, what is the purpose of the developer? -
ANSWER✔✔Acts as a blotter to produce a visible indication.
QUESTION: A cabin entry light of 10 watts and a dome light of 20 watts are connected in
parallel to a 30-volt source.
What will the measured voltage across the 10-watt light be? - ANSWER✔✔Equal to the voltage
across the 20-watt light.
QUESTION: What would be the minimum diameter of 4130 round stock required for the
construction of the clevis that would produce a machined surface?
(See Diagram) - ANSWER✔✔1 inch
QUESTION: What happens to the current in a voltage step-up transformer with a ratio of 1 to 4?
- ANSWER✔✔The current is stepped down by a 1 to 4 ratio.
, Page 4 of 146
QUESTION: If electrolyte from a lead-acid battery is spilled in the battery compartment, which
procedure should be followed? - ANSWER✔✔Apply sodium bicarbonate solution to the affected
area followed by a water rinse.
QUESTION: How can the dimensional inspection of a bearing in a rocker arm be accomplished?
- ANSWER✔✔Telescopic Gauge and Micrometer
QUESTION: How many of these factors are considered essential knowledge for x-ray exposure?
1. Processing of the film.
2. Material thickness and density.
3. Exposure distance and angle.
4. Film characteristics. - ANSWER✔✔Three
- Material thickness and density
- Exposure distance and angle
- Film characteristics
QUESTION: What is the likely result of servicing and charging nickel-cadmium and lead acid
batteries together in the same service area? - ANSWER✔✔Contamination of both types of
batteries
02AF1-GENERAL AND POWERPLANT WRITTEN
EXAM PRACTICE TEST EXAM WITH COMPLETE
350 QUESTIONS AND CORRECT DETAILED
SOLUTIONS JUST RELEASED THIS YEAR
QUESTION: For sketching purposes, almost all objects are composed of one or some
combination of six basic shapes. What are the six basic shapes? - ANSWER✔✔Triangle, circle,
cube, cylinder, cone, sphere.
QUESTION: Solve the equation.
[(4 x -3)+(-9 x 2)] ÷ 2 = ? - ANSWER✔✔Answer: -15
[(4 x -3)+(-9 x 2)] ÷ 2 =
[-12 + -18] ÷ 2 =
-30 ÷ 2 = -15
QUESTION: A certificated mechanic without an inspection authorization who signs the
appropriate block on FAA Form 337 is doing what? - ANSWER✔✔Certifying that the work was
done in accordance with the requirements of 14 CFR Part 43.
, Page 2 of 146
QUESTION: Which is correct in reference to electrical resistance?
a) An electrical device that has a high resistance will use more power than one with a low
resistance with the same applied voltage.
b) Two electrical devices will have the same combined resistance if they are connected in series
as they will have if connected in parallel.
c) If one of three bulbs in a parallel lighting circuit is removed, the total resistance of the circuit
will become greater. - ANSWER✔✔If one of three bulbs in a parallel lighting circuit is removed,
the total resistance of the circuit will become greater.
QUESTION: Specifications pertaining to an aircraft model manufactured under a type certificate
of which less than 50 are shown on the FAA Aircraft Registry, can be found where? -
ANSWER✔✔Aircraft listing.
QUESTION: Determine the proper tension for a 3/16-inch cable (7 x 19 extra flex) if the
temperature is 87°F.
(See Diagram) - ANSWER✔✔125 Pounds
QUESTION: Generally, when an induction fire occurs during starting of a reciprocating engine,
what should be the first course of action? - ANSWER✔✔Continue cranking and start the engine
if possible.
, Page 3 of 146
QUESTION: A 12-volt electric motor has 1,000 watts input and 1 horsepower output.
Maintaining the same efficiency, how much input power will a 24-volt, 1-horsepower electric
motor require?
(Note: 1 horsepower = 746 watts) - ANSWER✔✔1,000 watts
QUESTION: In performing a dye penetrant inspection, what is the purpose of the developer? -
ANSWER✔✔Acts as a blotter to produce a visible indication.
QUESTION: A cabin entry light of 10 watts and a dome light of 20 watts are connected in
parallel to a 30-volt source.
What will the measured voltage across the 10-watt light be? - ANSWER✔✔Equal to the voltage
across the 20-watt light.
QUESTION: What would be the minimum diameter of 4130 round stock required for the
construction of the clevis that would produce a machined surface?
(See Diagram) - ANSWER✔✔1 inch
QUESTION: What happens to the current in a voltage step-up transformer with a ratio of 1 to 4?
- ANSWER✔✔The current is stepped down by a 1 to 4 ratio.
, Page 4 of 146
QUESTION: If electrolyte from a lead-acid battery is spilled in the battery compartment, which
procedure should be followed? - ANSWER✔✔Apply sodium bicarbonate solution to the affected
area followed by a water rinse.
QUESTION: How can the dimensional inspection of a bearing in a rocker arm be accomplished?
- ANSWER✔✔Telescopic Gauge and Micrometer
QUESTION: How many of these factors are considered essential knowledge for x-ray exposure?
1. Processing of the film.
2. Material thickness and density.
3. Exposure distance and angle.
4. Film characteristics. - ANSWER✔✔Three
- Material thickness and density
- Exposure distance and angle
- Film characteristics
QUESTION: What is the likely result of servicing and charging nickel-cadmium and lead acid
batteries together in the same service area? - ANSWER✔✔Contamination of both types of
batteries
