CHAPTER8E PART2

24問 • 1年前R

問題一覧

The impulse coupling ________ (should or should not) be engaged when timing the magneto to the engine.

should not

A _____________ ____________ (what kind of equipment) is used to show exactly the time at which the breaker points open.

timing light

Close timing of a base-mounted magneto to an aircraft engine is permitted by using a _____________ ______________.

vernier coupling

Wear of the breaker points will cause the timing of a magneto to drift __________ (early or late).

early

The engine analyzer is an adaptation of the laboratory __________ (what instrument).

oscilloscope

Ignition leads are usually made of _________ _________ or _________ _________ wire, enclosed in a rubber or silicone insulation.

stranded copper, stainless steel

Modern ignition harnesses are available with terminal ends to fit either the standard _________ (what size) shielded spark plug or the _________ (what size) all-weather spark plug.

5/8-24, 3/4-20

The ______________ (capacitance or inductance) caused by shielding of the ignition leads causes excessive electrode erosion around the ignition leads.

Capacitance

The ______________ (what component) in a spark plug is installed to minimize electrode erosion caused by using shielded ignition leads.

resistor

The length of the shell threads on a spark plug is called the ____________ of the spark plug.

reach

A short reach spark plug has ____________-inch of threads on its shell, and a long reach plug has ____________-inch of threads.

1/3, 3/16

A spark plug that has a long nose core insulator (heat path) is a ________ (hot or cold) spark plug.

hot

A _________ (hot or cold) spark plug should be used in a high-compression engine.

cold

An engine operating with a too _________ (rich or lean) idle mixture will cause the spark plugs to have black sooty deposits in their firing end cavity.

rich

Hard bead-like deposits found in the firing end of the spark plug indicate that the plug has been subject to _________ ________.

lead fouling

Lead fouling may occur on a spark plug that is too __________ (hot or cold) for the engine operating conditions.

cold

Two sources of oil that can cause spark plug fouling are: a. _________________ b. _________________

Broken piston ring, worn valve guides

A spark plug should not be allowed to wear away more than __________ (what fraction) of its electrode dimension before it is discarded.

1/2

Severe erosion of both the center electrode and the ground electrode may indicate __________ ________________ problems.

fuel metering

Lead deposits in the firing-end cavity of a spark plug should be removed with a ________________ (what type) cleaning tool

vibrator

It __________ (is or is not) recommended that the spark plug gap be widened if it has been inadvertently closed too much.

is not

The spark plug that is removed from cylinder number one, bottom, should be replaced in cylinder number __________ (what number), __________ (top or bottom), if the firing order of the engine is 1-6-3-2-5-4.

6, top

Thread lubricant should be placed on the __________ (first or second) thread from the end of the shell when installing a spark plug in an engine.

second

The lead terminal of a spark plug harness should be wiped with a cloth dampend with _____________ or _____________ before it is installed in the spark plug.

acetone, M.E.K.

CHAPTER 1A

Dorian Pinuellas · 53問 · 2年前

CHAPTER 1A