Insp. 350 Exam 1 Question and
answers correctly solved 2025/2026
List the different types of aircraft wheels and tires - correct answer ✔Wheels: Modern day aircrafts use
a two-piece wheels that are split in the center and made air tight with an O-ring seal placed between the
two halves. (Tubeless Tires). Earlier day used a one piece unit where the tires would flex over the rim
much like automotive tires.
Tires: Tube and tubeless, type sizes, and ply rating
- Rib tread, for hard surfaces like runways and has long tread wear.
-
Describe the warning and safety procedures for working with aircraft tires and wheels - correct answer
✔- Put the safety barriers in position.
- Put the warning notice in the cockpit to tell persons not to operate the landing gear.
- Make sure that the wheel chocks are in position. Check wheel assembly for missing, broken or loose
tie-bolts.
Demonstrate the procedures for cleaning, inspecting and repacking a wheel bearing - correct answer
✔CLEANING
- Clean solvent should be used to wash the wheel bearing.
- Soak them to soften grease, then brush them with a soft bristle brush to remove residue
- Dry bearings by blowing them out with LOW-PRESSURE DRY COMPRESSED AIR
- DO NOT SPIN THE BEARINGS AS YOU DRY THEM
INSPECTION
, -If you cant remove bearing from axle shaft use a puller, usually indication of galling on there inner bore
which is to be rejected
-Water stains; indication of intergranular corrosion in the surface of the rollers of the face, cause for
rejection
- ANY damage to the large end of the rollers, rejection
-Minor flattening at the small end
-ANY spalling (chipping) of the rolling surface, reject
-ANY grooves you can feel with a finger tip, reject
- Discolorations of rollers indicates overheating, reject
- Rust, indicates dry operation, reject
- Bearing cages hold the rollers spaced
PACKING
- Bearings should be packed using the greased specified by the manufacturer
- Pressure-Packing uniformly covers all of the rollers
- Packing by hand; grease must be worked up around each of the individual rollers and inner cone until
they are uniformly covered.
- Inner Cone and Roller Assembly; packed in clean waxed paper and stored for installation.
- A light film of grease should be applied to the bearing cups which protect the cup from dirt or damage
until wheel is reassembled
Describe the basic operation of constant displacement type pumps and their internal components -
correct answer ✔- A constant displacement type pump moves a specific volume of fluid each time its
shaft turns.
- It must have some form of regulator or relief valve in the system to relieve the pressure that builds up
when the pump moves more fluid then the system can use.
answers correctly solved 2025/2026
List the different types of aircraft wheels and tires - correct answer ✔Wheels: Modern day aircrafts use
a two-piece wheels that are split in the center and made air tight with an O-ring seal placed between the
two halves. (Tubeless Tires). Earlier day used a one piece unit where the tires would flex over the rim
much like automotive tires.
Tires: Tube and tubeless, type sizes, and ply rating
- Rib tread, for hard surfaces like runways and has long tread wear.
-
Describe the warning and safety procedures for working with aircraft tires and wheels - correct answer
✔- Put the safety barriers in position.
- Put the warning notice in the cockpit to tell persons not to operate the landing gear.
- Make sure that the wheel chocks are in position. Check wheel assembly for missing, broken or loose
tie-bolts.
Demonstrate the procedures for cleaning, inspecting and repacking a wheel bearing - correct answer
✔CLEANING
- Clean solvent should be used to wash the wheel bearing.
- Soak them to soften grease, then brush them with a soft bristle brush to remove residue
- Dry bearings by blowing them out with LOW-PRESSURE DRY COMPRESSED AIR
- DO NOT SPIN THE BEARINGS AS YOU DRY THEM
INSPECTION
, -If you cant remove bearing from axle shaft use a puller, usually indication of galling on there inner bore
which is to be rejected
-Water stains; indication of intergranular corrosion in the surface of the rollers of the face, cause for
rejection
- ANY damage to the large end of the rollers, rejection
-Minor flattening at the small end
-ANY spalling (chipping) of the rolling surface, reject
-ANY grooves you can feel with a finger tip, reject
- Discolorations of rollers indicates overheating, reject
- Rust, indicates dry operation, reject
- Bearing cages hold the rollers spaced
PACKING
- Bearings should be packed using the greased specified by the manufacturer
- Pressure-Packing uniformly covers all of the rollers
- Packing by hand; grease must be worked up around each of the individual rollers and inner cone until
they are uniformly covered.
- Inner Cone and Roller Assembly; packed in clean waxed paper and stored for installation.
- A light film of grease should be applied to the bearing cups which protect the cup from dirt or damage
until wheel is reassembled
Describe the basic operation of constant displacement type pumps and their internal components -
correct answer ✔- A constant displacement type pump moves a specific volume of fluid each time its
shaft turns.
- It must have some form of regulator or relief valve in the system to relieve the pressure that builds up
when the pump moves more fluid then the system can use.
