2024 ALL POWERPLANT ORAL STUDY GUIDE 100+ Questions and Correct Answers VERIFIED!!! [AMP003, AMP009, AMP026, AMP030, AMP039, AMP040, AMP041, AMP044, AMP052, AMP053, AMP056, AMP062, AMP063, AMP068] New Generation!!!

2024 ALL POWERPLANT ORAL STUDY GUIDE 100+ Questions and Correct Answers VERIFIED!!! [AMP003, AMP009, AMP026, AMP030, AMP039, AMP040, AMP041, AMP044, AMP052, AMP053, AMP056, AMP062, AMP063, AMP068] New Generation!!!
AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.

AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.

AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.

AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.

AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.

AMP056 - CORRECT ANSWER>>Recall reciprocating engine - components / operating principles / characteristics

What is the purpose of crankshaft dynamic dampers? - CORRECT ANSWER>>To reduce engine vibration.

What types of bearings are generally found in reciprocating engines? - CORRECT ANSWER>>Plain, ball, and roller bearings.

What type of connecting rods are commonly found in radial engines? - CORRECT ANSWER>>Master and articulating rod assemblies.

Are the connecting rods used in each cylinder of a radial engine the same? Explain. - CORRECT ANSWER>>No, radial engines use master and articulating rod assemblies.

Name the different types of piston rings. - CORRECT ANSWER>>Oil control, compression, and oil scraper.

Where should piston ring gaps be installed relative to each other, and why? - CORRECT ANSWER>>Compression ring gaps should be staggered so that they do not align. This prevents excessive blow-by.

What could result from incorrectly installed piston rings? - CORRECT ANSWER>>Excessive oil consumption.

What purpose do oil control rings serve? - CORRECT ANSWER>>They regulate the thickness of the oil film on the cylinder walls.

What is used to help prevent valve surge or floating in an aircraft engine? - CORRECT ANSWER>>Two or more springs are used on each valve.

On engines equipped with hydraulic valve lifters, what should the running valve clearance be? - CORRECT ANSWER>>Zero.

What is the purpose of valve overlap? - CORRECT ANSWER>>It allows better volumetric efficiency and lowers cylinder operating temperatures.

What procedure should be followed when valve blow-by is indicated by a hissing sound on a reciprocating engine when pulling through the propeller? - CORRECT ANSWER>>Perform a cylinder compression test to identify the faulty cylinder.

When troubleshooting a running engine malfunction, what does a cold cylinder indicate? - CORRECT ANSWER>>Lack of combustion in that cylinder.

What factors about the condition of an engine can be learned by studying the results of a compression test? - CORRECT ANSWER>>The results of a compression test determine if the valves, piston rings, and pistons are adequately sealing.

Where are cracks most likely to be found in a piston? - CORRECT ANSWER>>Highly stressed areas; the base of the pin bosses, inside at the junction of the head and walls, and the ring lands.