ASA Aircraft Instrument Sys Review Questions with complete Solutions Graded A+
1 (8586) - An aircraft magnetic compass is swung to up-date the compass correction card when - Answers C- equipment is added that could effect compass deviation
2 (8587) - The operating mechanism of most hydraulic pres...
1 (8586) - An aircraft magnetic compass is swung to up-date the compass correction card when -
Answers C- equipment is added that could effect compass deviation
2 (8587) - The operating mechanism of most hydraulic pressure gauges is - Answers A- a Bourdon tube.
3 (8588) - What is the fixed line mark attached to the compass bowl of a magnetic compass called? -
Answers B- Lubber line.
4 (8589) - (1) Aircraft instruments are color-coded to direct attention to operational ranges and
limitations.(2) Aircraft instruments range markings are not specified by Title 14 of the Code of Federal
Regulations but are standardized by aircraft manufacturers.Regarding the above statements, - Answers
A- only No. 1 is true.
5 (8590) - When swinging a magnetic compass, the compensators are adjusted to correct for - Answers
A- magnetic influence deviation.
6 (8591) - What will be the result if the instrument static pressure line becomes disconnected inside a
pressurized cabin during cruising flight? - Answers A- The altimeter and airspeed indicator will both read
low.
7 (8592) - The maximum deviation (during level flight) permitted in a compensated magnetic direction
indicator installed on an aircraft certificated under Federal Aviation Regulation Part 23 is - Answers C-
10°.
8 (8593) - Magnetic compass bowls are filled with a liquid to - Answers C- dampen the oscillation of the
float.
9 (8594) - Instrument static system leakage can be detected by observing the rate of change in
indication of the - Answers C- altimeter after suction has been applied to the static system to cause a
prescribed equivalent altitude to be indicated
10 (8595) - The maximum altitude loss permitted during an unpressurized aircraft instrument static
pressure system integrity check is - Answers C- 100 feet in 1 minute.
11 (8596) - Which statement regarding an aircraft instrument vacuum system is true? - Answers A- Dry-
type vacuum pumps with carbon vanes are very susceptible to damage from solid airborne particles and
must take in only filtered air.
12 (8597) - When an aircraft altimeter is set at 29.92" Hg on the ground, the altimeter will read -
Answers A- pressure altitude.
13 (8598) - Which of the following instrument discrepancies could be corrected by an aviation
mechanic?1. Red line missing.2. Case leaking.3. Glass cracked.4. Mounting screws loose.5. Case paint
chipped.6. Leaking at line B nut.7. Will not adjust.8. Fogged. - Answers C- 1, 4, 5, 6.
, 14 (8599) - Which of the following instrument discrepancies would require replacement of the
instrument?1. Red line missing.2. Case leaking.3. Glass cracked.4. Mounting screws loose.5. Case paint
chipped.6. Leaking at line B nut.7. Will not zero out.8. Fogged - Answers A- 2, 3, 7, 8.
15 (8600) - Which instrument condition is acceptable and would not require correction?1. Red line
missing.2. Case leaking.3. Glass cracked.4. Mounting screws loose.5. Case paint chipped.6. Leaking at
line B nut.7. Will not zero out.8. Fogged. - Answers B- 5
16 (8601) - A barometric altimeter indicates pressure altitude when the barometric scale is set at -
Answers A- 29.92" Hg.
17 (8602) - A Bourdon tube instrument may be used to indicate1. pressure.2. temperature.3. position. -
Answers A- 1 and 2.
18 (8603) - A turn coordinator instrument indicates - Answers C- both roll and yaw.
19 (8604) - Aircraft temperature thermocouple leads may - Answers A- not be altered and are designed
for a specific installation.
20 (8605) - A synchro transmitter is connected to a synchro receiver - Answers C- electrically with wires.
21 (8606) - The operation of an angle-of-attack indicating system is based on detection of differential
pressure at a point where the airstream flows in a direction - Answers A- not parallel to the true angle of
attack of the aircraft.
22 (8607) - Turbine engine exhaust gas temperatures are measured by using - Answers B-
chromel/alumel thermocouples.
23 (8608) - Fuel flow transmitters are designed to transmit data - Answers B- electrically.
24 (8609) - Which of the following causes of aircraft magnetic compass inaccuracies may be
compensated for by mechanics? - Answers A- Deviation.
25 (8610) - Who is authorized to repair an aircraft instrument?1. A certified mechanic with an airframe
rating.2. A certificated repairman with an airframe rating.3. A certificated repair station approved for
that class instrument.4. A certificated airframe repair station. - Answers C- 3
26 (8611) - What does a reciprocating engine manifold pressure gauge indicate when the engine is not
operating? - Answers C- The existing atmospheric pressure.
27 (8612) - The requirements for testing and inspection of instrument static systems required by Section
91.411 are contained in - Answers C- Part 43, appendix E.
28 (8613) - Which condition would be most likely to cause excessive vacuum in a vacuum system? -
Answers B- Vacuum relief valve improperly adjusted.
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