POSTAL AUTOMOTIVE LATEST 2026 EXAM QUESTIONS
AND ANSWERS RATED A+
✔✔What is the maximum allowable oversize amount when reconditioning brake drums?
- ✔✔.060 inches
✔✔21. Intake Stroke Air Fuel Mixture Measurement - ✔✔Volumetric Efficiency
✔✔22. Purpose of Welch Plugs - ✔✔Sand Removal After Casting
✔✔23. Two Cycle Engine Power Stroke Frequency - ✔✔Revolution
✔✔24. Preignition Cause - ✔✔Carbon Deposits
✔✔25. Outdoor Motor Propeller Size Units - ✔✔Diameter and Pitch
✔✔26. Closed Crank Case Ventilation System Purpose - ✔✔Air Contamination
Prevention
✔✔27. Angular Motion around Vertical Axis - ✔✔Yaw
✔✔28. Float Bowl Fuel Level Maintenance Circuit - ✔✔Float Circuit
✔✔29. Jet Engine Combustion Chamber Liner Cooling - ✔✔Air Streams
✔✔30. Regenerative Gas Turbine Engine Application - ✔✔Automobiles
✔✔Power impulses from the engine are smoothed out by the - ✔✔Flywheel
✔✔The service ratings MS, SE, SG refers to - ✔✔Motor Oils
✔✔The intake and exhaust openings on a two-stroke cycle engine are known as -
✔✔Ports
✔✔Ball joint type front suspension eliminates - ✔✔The conventional kingpin
✔✔Gasoline cannot be used in a diesel because - ✔✔Gasoline will start to burn before
the piston reaches the top of the stroke
✔✔On the compression stroke, a diesel engine compresses - ✔✔Air
✔✔The idle and low-speed circuit in a carburetor is inoperative - ✔✔At speeds over 20
mph
AND ANSWERS RATED A+
✔✔What is the maximum allowable oversize amount when reconditioning brake drums?
- ✔✔.060 inches
✔✔21. Intake Stroke Air Fuel Mixture Measurement - ✔✔Volumetric Efficiency
✔✔22. Purpose of Welch Plugs - ✔✔Sand Removal After Casting
✔✔23. Two Cycle Engine Power Stroke Frequency - ✔✔Revolution
✔✔24. Preignition Cause - ✔✔Carbon Deposits
✔✔25. Outdoor Motor Propeller Size Units - ✔✔Diameter and Pitch
✔✔26. Closed Crank Case Ventilation System Purpose - ✔✔Air Contamination
Prevention
✔✔27. Angular Motion around Vertical Axis - ✔✔Yaw
✔✔28. Float Bowl Fuel Level Maintenance Circuit - ✔✔Float Circuit
✔✔29. Jet Engine Combustion Chamber Liner Cooling - ✔✔Air Streams
✔✔30. Regenerative Gas Turbine Engine Application - ✔✔Automobiles
✔✔Power impulses from the engine are smoothed out by the - ✔✔Flywheel
✔✔The service ratings MS, SE, SG refers to - ✔✔Motor Oils
✔✔The intake and exhaust openings on a two-stroke cycle engine are known as -
✔✔Ports
✔✔Ball joint type front suspension eliminates - ✔✔The conventional kingpin
✔✔Gasoline cannot be used in a diesel because - ✔✔Gasoline will start to burn before
the piston reaches the top of the stroke
✔✔On the compression stroke, a diesel engine compresses - ✔✔Air
✔✔The idle and low-speed circuit in a carburetor is inoperative - ✔✔At speeds over 20
mph
