AMT 113 PROG 1 QUESTIONS WITH VERIFIED
ANSWERS
An aircraft magnetic compass is swung to up-date the compass correction card when -
Answers - equipment is added that could effect compass deviation.
Which of the following operating mechanisms would be found in a hydraulic pressure
gauge? - Answers - Bourdon tube.
What is the fixed line mark attached to the compass bowl of a magnetic compass
called? - Answers - Lubber line.
1- Aircraft instruments are color-coded to direct attention to operational ranges and
limitations.
2- Aircraft instruments range markings are not specified by Titled 14 of the Code of
Federal Regulations but are standardized by aircraft manufacturers.
Regarding the above statements, - Answers - only No. 1 is true.
Which of the following will cause inaccuracies in a magnetic compass that may be
compensated for by an aircraft mechanic? - Answers - Deviation.
What will be the result if the instrument static pressure line becomes disconnected
inside a pressurized cabin during cruising flight? - Answers - The altimeter and airspeed
indicator will both be read low.
The maximum deviation (during flight level) permitted in a compensated magnetic
direction indicator installed on an aircraft certificated under Federal Aviation Regulation
Part 23 is - Answers - 10°.
Magnetic compass bowls are filled with a liquid to - Answers - dampen the oscillation of
the float.
Instrument static system leakage can be detected by observing the rate of change in
indication of the - Answers - altimeter after suction has been applied to the static system
to cause a prescribed equivalent altitude to be indicated.
The maximum altitude loss permitted during an unpressurized aircraft instrument static
pressure system integrity check is - Answers - 100 feet in 1 minute.
Which statement regarding an aircraft instrument vacuum system true? - Answers - Dry-
type vacuum pumps with carbon vanes are very susceptible to damage from solid
airborne particles and must take in only filtered air.
, When an altitude altimeter is set to 29.92" Hg on the ground, the altimeter will read -
Answers - pressure altitude.
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 - 1, 4, 5, 6.
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 - 2, 3, 7, 8.
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 - 5.
A barometer altimeter indicates pressure altitude when the barometer scale is set as -
Answers - 29.92" Hg.
At sea level, when the average atmospheric pressure is 14.7 PSI, the barometric
pressure is - Answers - 29.92" Hg.
A Bourdon tube instrument may be used to indicate
1- pressure.
2- temperature.
3- position. - Answers - 1 and 2.
ANSWERS
An aircraft magnetic compass is swung to up-date the compass correction card when -
Answers - equipment is added that could effect compass deviation.
Which of the following operating mechanisms would be found in a hydraulic pressure
gauge? - Answers - Bourdon tube.
What is the fixed line mark attached to the compass bowl of a magnetic compass
called? - Answers - Lubber line.
1- Aircraft instruments are color-coded to direct attention to operational ranges and
limitations.
2- Aircraft instruments range markings are not specified by Titled 14 of the Code of
Federal Regulations but are standardized by aircraft manufacturers.
Regarding the above statements, - Answers - only No. 1 is true.
Which of the following will cause inaccuracies in a magnetic compass that may be
compensated for by an aircraft mechanic? - Answers - Deviation.
What will be the result if the instrument static pressure line becomes disconnected
inside a pressurized cabin during cruising flight? - Answers - The altimeter and airspeed
indicator will both be read low.
The maximum deviation (during flight level) permitted in a compensated magnetic
direction indicator installed on an aircraft certificated under Federal Aviation Regulation
Part 23 is - Answers - 10°.
Magnetic compass bowls are filled with a liquid to - Answers - dampen the oscillation of
the float.
Instrument static system leakage can be detected by observing the rate of change in
indication of the - Answers - altimeter after suction has been applied to the static system
to cause a prescribed equivalent altitude to be indicated.
The maximum altitude loss permitted during an unpressurized aircraft instrument static
pressure system integrity check is - Answers - 100 feet in 1 minute.
Which statement regarding an aircraft instrument vacuum system true? - Answers - Dry-
type vacuum pumps with carbon vanes are very susceptible to damage from solid
airborne particles and must take in only filtered air.
, When an altitude altimeter is set to 29.92" Hg on the ground, the altimeter will read -
Answers - pressure altitude.
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 - 1, 4, 5, 6.
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 - 2, 3, 7, 8.
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 - 5.
A barometer altimeter indicates pressure altitude when the barometer scale is set as -
Answers - 29.92" Hg.
At sea level, when the average atmospheric pressure is 14.7 PSI, the barometric
pressure is - Answers - 29.92" Hg.
A Bourdon tube instrument may be used to indicate
1- pressure.
2- temperature.
3- position. - Answers - 1 and 2.
