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PowerPlant O&Ps > Recip Engines-Op, Maint, Instruments, Overhaul > Flashcards

Recip Engines-Op, Maint, Instruments, Overhaul Flashcards

1
Q

What indications are given in the event of a leaking or open primer while the engine is running?

A

The engine will not idle properly.

Page Reference: JSPT 14-11

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2
Q

A cold cylinder is found when troubleshooting a running engine. What does this indicate?

A

No combustion in that cylinder.

Page Reference: JSPT 14-5

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3
Q

When pulling a propeller through, a hissing sound is heard, indicating valve blow-by. What procedure should be performed next?

A

A compression check should be performed to identify the faulty cylinder.

Page Reference: JSPT 2-18

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4
Q

What is the purpose of performing a compression test?

A

To determine if the valves, pistons and rings are sealing properly.

Page Reference: JSPT 2-18

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5
Q

When an engine is overhauled, how is its total time affected? When an engine is rebuilt, how is its operating history affected?

A

The total time on the engine must be continued and the time since major overhaul is entered into the engine log. If the manufacturer rebuilds the engine, it is granted a zero-time status and is considered to have no previous operating history.

Page Reference: JSPT 2-25

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6
Q

What inspections should be performed after a propeller strike without sudden stoppage?

A
  1. Inspect engine mounts, the crankcase, and the nose section for damage. 2. Inspect the oil and oil filters/screens for metal particles. 3. Inspect the crankshaft or driveshaft for cracks and misalignment.

Page Reference: JSPT 2-25

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7
Q

Name some of the precautions that should be performed prior to engine removal.

A

Disconnect the battery, turn off the fuel valves, chock the wheels, and if necessary, install a tail stand.

Page Reference: JSPT 2-27

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8
Q

When inspecting a piston, where are cracks most likely to be found?

A

In those areas that are highly stressed; usually the base of the piston bosses, inside at the junction of the bore and the walls, and the ring lands.

Page Reference: JSPT 2-36

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9
Q

What does it mean if an engine part is within ‘serviceable limits’?

A

It means that the part is within the manufacturer’s limits and can be used in an engine (does not require replacement).

Page Reference: JSPT 2-32

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10
Q

What tools or instruments are used to inspect a cylinder barrel for out-of-roundness?

A

A dial indicator or an inside micrometer is usually used to measure the top of the cylinder and at the skirt. A telescopic gauge and micrometer can also be used. Two readings should be taken 90° to each other.

Page Reference: JSPT 2-42

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11
Q

How can a loose stud in an engine crankcase be repaired?

A

Remove the loose stud and inspect the hole for size and thread condition. It may be necessary to use an oversize stud or Heli-Coil® insert.

Page Reference: JSPT 2-47

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12
Q

What publication is used to check an engine for normal operation?

A

Manufacturer’s maintenance manual.

Page Reference: JSPT 2-13

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13
Q

A weak cylinder is found during a compression check. What must be inspected?

A

Pressure is transmitted equally in all directions.

Page Reference: JSPT 2-17

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14
Q

What purpose does an oil analysis serve?

A

Metal particles in the oil show normal and abnormal wear of the engine. This helps in evaluating the engine’s internal condition.

Page Reference: JSPT 2-25

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15
Q

What inspection should be performed on an engine that has been in storage?

A

Perform an inspection to determine if there is any corrosion damage.

Page Reference: JSPT 2-25

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16
Q

Where would a carburetor air temperature bulb be located?

A

In the ram air intake duct.

Page Reference: JSPT 2-3

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17
Q

What is the fuel pressure range on float-type carburetors?

A

3 to 5 psi.

Page Reference: JSPT 2-4

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18
Q

Name the basic components of a fuel indicator system.

A

The transmitter and the indicator.

Page Reference: JSPT 2-5

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19
Q

What unit of measure is generally used to indicate fuel flow?

A

Pounds or gallons per hour.

Page Reference: JSPT 2-6

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20
Q

Why is fuel flow monitored?

A

To determine fuel consumption and engine performance.

Page Reference: JSPT 2-6

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21
Q

What does the manifold gauge indicate and how is it calibrated?

A

It measures the absolute pressure in the engine manifold and is calibrated in inches of mercury.

(Page Reference: JSPT 2-6)

22
Q

What directly controls manifold pressure?

A

Throttle opening and engine r.p.m.

(Page Reference: JSPT 2-6)

23
Q

During engine operation, where should the propeller control be set when checking the manifold pressure?

A

Low pitch, high r.p.m.

(Page Reference: JSPT 2-6)

24
Q

Is the aircraft electrical system required to power a cylinder head temperature gauge?

A

No. A thermocouple is used as the electrical source.

(Page Reference: JSPT 2-8)

25
Q

What are the possible indications of an oil pressure transmitter or indicator malfunction?

A

A severe or sudden drop in oil pressure while the oil temperature remains normal and the oil supply remains full.

(Page Reference: JSPT 2-8)

26
Q

What does a tachometer indicate on a reciprocating engine?

A

Engine r.p.m.

(Page Reference: JSPT 2-10)

27
Q

Where should the thermocouple be installed on a reciprocating engine using a single probe cylinder head temperature system?

A

On the hottest cylinder.

(Page Reference: JSPT 2-9)

28
Q

What is the project for performing an engine cylinder runout inspection?

A

Perform an engine cylinder runout inspection.

(Level 3)

29
Q

What is the project for repairing or replacing a cylinder mounting stud?

A

Repair or replace a cylinder mounting stud.

(Level 3)

30
Q

What is the project for performing a runout inspection of a crankshaft?

A

Perform a runout inspection of a crankshaft.

(Level 3)

31
Q

What is the project for performing a crankshaft propeller flange runout inspection?

A

Perform a crankshaft propeller flange runout inspection.

(Level 3)

32
Q

What is the project for replacing a crankshaft front oil seal?

A

Replace a crankshaft front oil seal.

(Level 3)

33
Q

What is the project for installing a cylinder on an engine?

A

Install a cylinder on an engine.

(Level 3)

34
Q

What is the project for installing a piston and rings in a cylinder?

A

Install a piston and rings in a cylinder.

(Level 3)

35
Q

What is the project for performing a differential compression test on a cylinder?

A

Perform a differential compression test on a cylinder.

(Level 3)

36
Q

What is the project for adjusting exhaust and intake valve clearances on an engine with solid lifters?

A

Adjust exhaust and intake valve clearances on an engine with solid lifters.

(Level 3)

37
Q

What is the project for adjusting valve clearances on an engine with hydraulic valve lifters?

A

Adjust valve clearances on an engine with hydraulic valve lifters.

(Level 3)

38
Q

What is the project for replacing and/or adjusting engine shock mounts?

A

The project involves replacing and/or adjusting engine shock mounts on an aircraft.

The performance standard is to install and torque the engine mount in accordance with the reference material.

39
Q

What is the project for inspecting the integrity of structural engine mounts?

A

The project involves inspecting the integrity of structural engine mounts on an aircraft.

The performance standard is to visually inspect the engine mounts and determine serviceability.

40
Q

What is the project for adjusting oil pressure?

A

The project involves adjusting the oil pressure of an operable engine.

The performance standard is to adjust the engine oil pressure to specifications.

41
Q

What is the project for locating top-dead-center of a piston?

A

The project involves adjusting the engine oil pressure and locating top-dead-center of a piston.

The performance standard is to verify the timing mark position on the engine.

42
Q

What is the project for inspecting the rigging of engine controls?

A

The project involves inspecting the rigging of engine controls on an aircraft engine.

The performance standard is to inspect cable and push-pull engine control rigging to meet the manufacturer’s requirements.

43
Q

What is the project for replacing packing seals on a pushrod housing?

A

The project involves replacing packing seals on a pushrod housing.

The performance standard is to remove a pushrod housing, replace the seals, and install the housing.

44
Q

What is the project for repairing or replacing a sparkplug threaded boss?

A

The project involves repairing or replacing a sparkplug threaded boss.

The performance standard is to remove a sparkplug threaded insert and replace it according to the manufacturer’s instructions.

45
Q

What is the project for checking engine controls for defects?

A

The project involves checking engine controls for defects, improper travel, and freedom of operation.

The performance standard is to conduct an operational check of the engine controls in accordance with reference materials.

46
Q

What is the project for inspecting an engine for fluid leaks?

A

The project involves inspecting an engine for fluid leaks.

The performance standard is to inspect the engine for fluid leaks.

47
Q

What is the project for inspecting r.p.m. gauge markings?

A

The project involves inspecting the markings on an r.p.m. gauge.

The performance standard is to review the reference material and inspect the r.p.m. gauge for proper markings.

48
Q

What is the project for removing and installing a tachometer generator?

A

The project involves removing and installing a tachometer generator on an aircraft engine or mockup.

The performance standard is to do so in accordance with the reference materials.

49
Q

What is the project for measuring the resistance of a thermocouple?

A

The project involves measuring the resistance of a thermocouple.

The performance standard is to measure resistance to determine its serviceability.

50
Q

What is the project for troubleshooting a cylinder head temperature (CHT) indicating system?

A

The project involves troubleshooting a CHT indicating system.

The performance standard is to analyze pilot reports and determine the possible causes of system malfunctions.

51
Q

What is the project for installing a cylinder head temperature thermocouple?

A

The project involves installing a cylinder head temperature thermocouple assembly.

The performance standard is to install the assembly and check its functionality.

PowerPlant O&Ps (2 decks)

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