Question 1

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.

Accepted Answer

It avoids running fuel and oil into the cockpit

Question 2

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

Accepted Answer

can use analog sensors and an analog to digital converter

Question 3

One example of a mechanical movement indicator would be a

  – vertical speed indicator
  – oil temperature gauge
  – tachometer

Accepted Answer

tachometer

Question 4

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

Accepted Answer

a small single engine aircraft

Question 5

An electrically driven tachometer may make use of

  – an AC generator
  – a DC generator
  – a flexible driveshaft

Accepted Answer

an AC generator

Question 6

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

Accepted Answer

directly proportional to engine speed

Question 7

Which instrument would be used to show if 2 or more engines are operating at exactly the same speed?

  – Tachometer
  – Accelerometer
  – Synchroscope

Accepted Answer

Synchroscope

Question 8

Accelerometers use the principle of

  – pressure  – inertia  – speed

Accepted Answer

inertia

Question 9

An AOA indicator is a type of

  – stall warning device
  – airspeed indicator
  – accelerometer

Accepted Answer

stall warning device

Question 10

How many types of AOA indicators are there?(4 Points)  – 1  – 2  – 3

Accepted Answer

2

Question 11

Which form of thermometer is most useful in aviation?

  – liquid mercury
  – non-contact
  – bi-metallic

Accepted Answer

bi-metallic

Question 12

Electrical resistance thermometers measure temperatures in the ____________ range.

  – -10°C-100°C
  – -70°C-150°C
  – 0°C-150°C

Accepted Answer

-70°C-150°C

Question 13

Temperature indicators sometimes use a modified form of the ___________________ circuit.

  –  Wheatstone Bridge
  – Series-Parallel
  – London Bridge

Accepted Answer

Wheatstone Bridge

Question 14

Iron and Constantan are commonly used in thermocouples for

  – EGT Leads 
  – CHT Leads
  – OAT Leads

Accepted Answer

EGT Leads

Question 15

The amount of voltage produced by dissimilar metals is measured in

  – megavolts
  – microvolts
  – millivolts

Accepted Answer

millivolts

Question 16

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

Accepted Answer

any rise caused by high speed movement

Question 17

A numerical compass card is usually graduated in _____ increments.

  – 5°
  – 10°
  – 90°

Accepted Answer

5°

Question 18

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

Accepted Answer

To dampen oscillations and vibration

Question 19

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

Accepted Answer

Dip Error

Question 20

Many remote compass systems are the ___________________ type.

  – magnesyn
  – dc selsyn
  – ac synchro

Accepted Answer

magnesyn

Question 21

_______________ magnetometers rely on tiny, layered structures that react to magnetism.

  – Remote indicating
  – Flux gate
  – Solid-state

Accepted Answer

Solid-state

Question 22

Which of the following can be used to power a gyro in an aircraft? (select all that apply)

  – Vacuum
  – Pressure
  – Electricity

Accepted Answer

Vacuum, Pressure, Electricity

Question 23

The vacuum required for instrument operation is

  – 3.5"-4.5" Hg

  – 1-2 psi

  – 5"-6" Hg

Accepted Answer

3.5"-4.5" Hg

Question 24

A venturi used to provide vacuum for instrument systems is generally effective around

  – 50 mph
  – 100 mph
  – 125 mph

Accepted Answer

100 mph

Question 25

Pressure driven gyro instruments can use a vacuum pump for their pressure.

  – True
  – False

Accepted Answer

True

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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