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11 HW 6 Test

Enter the letter for the matching Answer
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1.
Electrical resistance thermometers measure temperatures in the ____________ range. – -10°C-100°C – -70°C-150°C – 0°C-150°C
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2.
The amount of voltage produced by dissimilar metals is measured in – megavolts – microvolts – millivolts
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3.
Which of the following can be used to power a gyro in an aircraft? (select all that apply) – Vacuum – Pressure – Electricity
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4.
The tendency of a compass to show a turn to the north when accelerating on an eastern heading is known as – Magnetic Variation – Dip Error – Magnetic Deviation
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5.
An electrically driven tachometer may make use of – an AC generator – a DC generator – a flexible driveshaft
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6.
Aircraft with digital instrumentation – must use solid state sensors – can use analog sensors and an analog to digital converter – must use analog sensors and an air data computer
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7.
A venturi used to provide vacuum for instrument systems is generally effective around – 50 mph – 100 mph – 125 mph
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8.
Why are synchro systems commonly used to obtain engine fuel and oil pressure readings? – It avoids running fuel and oil into the cockpit – It is more accurate – It is a simpler system.
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9.
Why are magnetic compasses filled with fluid? – To allow movement and make more accurate – To allow the poles to align – To dampen oscillations and vibration
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10.
When a generator is used for a tachometer, its frequency is – directly proportional to engine speed – inversely proportional to engine speed – variable based on engine load
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11.
Which type of aircraft is most likely to use a mechanical tachometer? – a small multi-engine aircraft – a small single engine aircraft – a small glider used for cross country flights
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12.
How many types of AOA indicators are there?(4 Points) – 1 – 2 – 3
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13.
A numerical compass card is usually graduated in _____ increments. – 5° – 10° – 90°
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14.
Total air temperature is static temperature plus – any rise caused by higher pressures at high altitudes – any rise caused by high speed movement – any drop caused by low humidity
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15.
Pressure driven gyro instruments can use a vacuum pump for their pressure. – True – False
A.
B.
directly proportional to engine speed
C.
100 mph
D.
-70°C-150°C
E.
millivolts
F.
any rise caused by high speed movement
G.
an AC generator
H.
can use analog sensors and an analog to digital converter
I.
It avoids running fuel and oil into the cockpit
J.
2
K.
Dip Error
L.
a small single engine aircraft
M.
To dampen oscillations and vibration
N.
True
O.
Vacuum, Pressure, Electricity
Type the Answer that corresponds to the displayed Question.
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16.
_______________ magnetometers rely on tiny, layered structures that react to magnetism. – Remote indicating – Flux gate – Solid-state
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17.
Which instrument would be used to show if 2 or more engines are operating at exactly the same speed? – Tachometer – Accelerometer – Synchroscope
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18.
One example of a mechanical movement indicator would be a – vertical speed indicator – oil temperature gauge – tachometer
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19.
The vacuum required for instrument operation is – 3.5"-4.5" Hg – 1-2 psi – 5"-6" Hg
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20.
An AOA indicator is a type of – stall warning device – airspeed indicator – accelerometer
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21.
Accelerometers use the principle of – pressure – inertia – speed
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22.
Iron and Constantan are commonly used in thermocouples for – EGT Leads – CHT Leads – OAT Leads
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23.
Many remote compass systems are the ___________________ type. – magnesyn – dc selsyn – ac synchro
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24.
Temperature indicators sometimes use a modified form of the ___________________ circuit. – Wheatstone Bridge – Series-Parallel – London Bridge
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25.
Which form of thermometer is most useful in aviation? – liquid mercury – non-contact – bi-metallic

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