Jeppesen Ch. 11 Sec. A Flashcards
1
Q
- Pressure may be measured in three ways. These are
a.____ pressure
b.____ pressure
c.____ pressure.
A
Absolute
Gauge
Differential
2
Q
- Under standard day conditions, atmospheric pressure is ___ inches of Mercury or ___ psi
A
29.92
14.7
3
Q
- An aneroid barometer measures ___ (absolute or gauge) pressure.
A
Absolute
4
Q
- The difference between atmospheric pressure and the pressure being measured is called ___ pressure.
A
Gauge
5
Q
- An) ___ type instrument is used to measure high pressures.
A
Bourdon
6
Q
- The two pressures sensed by the airspeed indicator are:
a.____
b.____
A
Pitot
Static
7
Q
- The manifold pressure gauge measures the ___ (absolute or gauge) pressure inside the
induction system of a reciprocating engine.
A
Absolute
8
Q
- The instrument that measures the differential pressure between the tailpipe total pressure and the compressor inlet total pressure of a turbine engine is the ____ ____ ____ indicator.
A
Engine Pressure Ratio
9
Q
- The ____ measures the absolute pressure of the air surrounding the aircraft.
A
Altimeter
10
Q
- The altitude shown on an altimeter when the local altimeter setting is placed in the barometric window is called ____ altitude
A
indicated
11
Q
- All elevations on aeronautical charts are measured from ____ ____ ____.
A
Mean Sea Level
12
Q
- The scale in the barometric window of an altimeter may be calibrated in ____ of ____ or ____ .
A
Inches
Mercury (Hg)
millibars
13
Q
- The altitude shown on an altimeter when standard sea level pressure is put into the barometric window is called ____ altitude.
A
pressure
14
Q
- Flight level 320 is a pressure altitude of ____ feet.
A
32,000
15
Q
- Pressure altitude may be converted into density altitude by correcting the pressure altitude for non-standard ____.
A
temperature
16
Q
- Density altitude ____ (is or is not) a direct measurement.
A
Is not
17
Q
- When static ports are exposed to disturbed air. the results are altimeter system errors known as ____ error.
A
position
18
Q
- Radio altimeters provide an indication of the aircraft’s ____ altitude above ____(sea level or ground level) .
A
Absolute
Ground level
19
Q
- The tests required for a static system of an aircraft operated under instrument flight rules is described in FAR Part ____.
A
91.411
20
Q
- Altimeters installed in aircraft that operate under înstrument flight rules must have their accuracy checked every ____ (how many) calendar months.
A
24
21
Q
- The uncorrected reading of an airspeed indicator is called ____ airspeed.
A
Indicated
22
Q
- For navigation and flight planning purposes, a pilot is most interested in ___ (calibrated or true) airspeed.
A
True
23
Q
- An instrument that measures aircraft speed relative to the speed of sound is called a ___.
A
Machmeter
24
Q
- Mach ___ is flight at an airspeed of 95% of the speed of sound.
A
0.95
25
Q
- The rate-of-climb indicator is more properly known as the ___ ___ indicator.
A
Vertical Speed
26
Q
- A vertical speed indicator measures the rate of change of __ (pitot or static) pressure.
A
Static
27
Q
- Resistance change-type temperature measuring instruments may use either a(n) ___ or ___ a(n) ___ circuit.
A
Wheatstone bridge
Ratiometer
28
Q
- A(n) ___ instrument is typically used to measure high temperatures.
A
Thermocouple
29
Q
- It ___ (is or is not) permissible to cut off excess length of thermocouple leads.
A
Is not
30
Q
- An ___ terms of G’s. gives the pilot an indication of the load imposed on the aircraft structure in
A
Accelerometer (G-meter)
31
Q
- The ___ rotations. is used by the pilot of a twin-engine aircraft to synchronize the propeller rotations.
A
Synchroscope
32
Q
- A(n) ___ is an instrument that displays engine RPM.
A
Tachometer
33
Q
- The two basic characteristics of a gyroscope that makes it useful as a flight instrument are:
a.____
b.____
A
Pitch ( Lateral )
Roll ( Longitudinal )
34
Q
- An attitude gyro uses the gyroscopic characteristic of ___.
A
Rigidity in space
35
Q
- The artificial horizon indicator senses rotation of an aircraft about which two of its axes?
a.___
b.___
A
Pitch ( Lateral )
Roll ( Longitudinal )
36
Q
- The turn and slip indicator senses rotation about the ___ (which axis) axis of the aircraft.
A
Vertical
37
Q
- A rate gyro uses the gyroscopic characteristic of ___.
A
Precession
38
Q
- The turn and slip indicator is actually ten instruments in one housing, the non gyroscopic instrument is called a(n) ___.
A
Inclinometer
39
Q
- Because navigation charts are laid out according to the geographic poles and a magnetic compass points to the magnetic poles, the difference between the positions is called ___.
A
Variation
40
Q
- Lines of equal variation on aeronautical charts are called ___ lines.
A
Isogonic
41
Q
- The line of zero variation is known as the ___ line.
A
Agonic
42
Q
- Compass ___ (deviation or variation) is caused by the magnetic fields in the aircraft
that interfere with those of the earth.
A
Deviation
43
Q
- Swinging a compass compensates for ___ (deviation or variation).
A
Deviation
44
Q
- Two magnetic compass errors that a pilot must compensate for while in flight are ___
error and ___ error
A
Turning
Acceleration
45
Q
- A ___ gyro combines a directional gyro with direction-sensing instrumentation.
A
Slaved
46
Q
- Two major disadvantages to venturi systems for driving flight instruments are:
a____
b____
A
Susceptible to icing
Produces no vacuum until the airplane is flying
47
Q
- The rotor vanes of a dry-type vacuum pump are made of ____ (carbon or steel).
A
Carbon
48
Q
- Air-driven gyroscopic instruments require very ____ air.
A
Clean
49
Q
- An A&P maintenance technician instrument ____ (can or cannot) disassemble and repair an aircraft
A
Cannot
50
Q
- Three instruments that are connected to the static system are:
a____
b____
c____
A
Airspeed and/ or Mach Indicator
Altimeter
Vertical Speed
51
Q
- To prevent ice from obstructing a pitot tube, ____ (what type) heaters are used.
A
Electric
52
Q
- The alternate source valve in the aircraft flight instrument system is in the ___ (pitot
or static) system.
A
Static
53
Q
- Direct current electrical fuel quantity indicators use a variable ____ as a tank unit, or sender.
A
Resistor
54
Q
- The dielectric value of air is ____.
A
One
55
Q
- The dielectric value of fuel is approximately ____, but varies according to its temperature.
A
Two
56
Q
- In a capacitance type fuel quantity indicating system the two dielectric materials used are ____ and ____.
A
Air
Fuel
57
Q
- Fuel pressure is typically measured in ____.
A
Pounds per square inch (PSI)
58
Q
- The mass type flowmeter is the ____ (most or least) accurate method of measuring fuel flow.
A
Most
59
Q
- What is meant by each of these sets of letters?
a. EFIS _____
b. CRT _____
c. EADI _____
d. ARINC _____
e. EHSI _____
A
Electronic Flight Instrument System
Cathode Ray Tube
Electronic Attitude Deviation Indicator
Aeronautical Radio, Inc.
Electronic Horizontal Situation Indicator
60
Q
- Greenwich mean time is also known as ____ time.
A
Zulu or Z
