11 HW 6 Word Scramble

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Question	Answer
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.	It avoids running fuel and oil into the cockpit
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	can use analog sensors and an analog to digital converter
One example of a mechanical movement indicator would be a – vertical speed indicator – oil temperature gauge – tachometer	tachometer
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	a small single engine aircraft
An electrically driven tachometer may make use of – an AC generator – a DC generator – a flexible driveshaft	an AC generator
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	directly proportional to engine speed
Which instrument would be used to show if 2 or more engines are operating at exactly the same speed? – Tachometer – Accelerometer – Synchroscope	Synchroscope
Accelerometers use the principle of – pressure – inertia – speed	inertia
An AOA indicator is a type of – stall warning device – airspeed indicator – accelerometer	stall warning device
How many types of AOA indicators are there?(4 Points) – 1 – 2 – 3	2
Which form of thermometer is most useful in aviation? – liquid mercury – non-contact – bi-metallic	bi-metallic
Electrical resistance thermometers measure temperatures in the ____________ range. – -10°C-100°C – -70°C-150°C – 0°C-150°C	-70°C-150°C
Temperature indicators sometimes use a modified form of the ___________________ circuit. – Wheatstone Bridge – Series-Parallel – London Bridge	Wheatstone Bridge
Iron and Constantan are commonly used in thermocouples for – EGT Leads – CHT Leads – OAT Leads	EGT Leads
The amount of voltage produced by dissimilar metals is measured in – megavolts – microvolts – millivolts	millivolts
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	any rise caused by high speed movement
A numerical compass card is usually graduated in _____ increments. – 5° – 10° – 90°	5°
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	To dampen oscillations and vibration
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	Dip Error
Many remote compass systems are the ___________________ type. – magnesyn – dc selsyn – ac synchro	magnesyn
_______________ magnetometers rely on tiny, layered structures that react to magnetism. – Remote indicating – Flux gate – Solid-state	Solid-state
Which of the following can be used to power a gyro in an aircraft? (select all that apply) – Vacuum – Pressure – Electricity	Vacuum, Pressure, Electricity
The vacuum required for instrument operation is – 3.5"-4.5" Hg – 1-2 psi – 5"-6" Hg	3.5"-4.5" Hg
A venturi used to provide vacuum for instrument systems is generally effective around – 50 mph – 100 mph – 125 mph	100 mph
Pressure driven gyro instruments can use a vacuum pump for their pressure. – True – False	True

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