Study Guide Fill in the Blanks

Question 1

A ______ is used to show the rpm of reciprocating engines, the percentage of power for turbine engines, the rpm of helicopter rotors, and the rotational speed of any other device where this information is critical.

Answer 1

Tachometer

Question 2

Thermocouple leads are usually made of either constantan and iron or __________ and ________.

Answer 2

Constantan and Copper

Question 3

A _______________________________ is designed to measure an angular deflection at one point and reproduce this same
deflection at a remote point.

Answer 3

Synchro System

Question 4

The _______sensor is a solid-state switching device that is used to determine the position of moving components, such as flaps, cargo doors, and landing gear.

Answer 4

Proximity sensor

Question 5

A common transducer used with modern computerized aircraft to monitor rotary motion is known as the
_________________________________.

Answer 5

RVDT

Question 6

Electric fuel-quantity indicators utilize a _________________________________ resistor in the tank unit or sensor.

Answer 6

Variable resistor

Question 7

The B-787, for example, carries up to 237,000 lb (107,500 kg) of fuel and employs two redundant _______________________.

Answer 7

Fuel Quantity Indicating Systems

Question 8

The HSI is an instrument that displays information concerning the aircraft’s position in the _______________________ plane of
reference.

Answer 8

Horizontal plane of reference

Question 9

The instruments in _______________________ systems display all parameters associated with the aircraft’s movement through the air.

Answer 9

Air Data Systems

Question 10

The _________________________________, found on a typical five-tube EFIS (electronic flight instrumentation system) and typically located in the center console of the flight deck, is used as the fifth display of the system.

Answer 10

MFD

Question 11

The acronym EICAS stands for _________________________________.

Answer 11

Engine Indicating and Crew Alerting Systems

Question 12

The common displays found on second-generation electronic instrument systems are known as the
_____, the __________, and ______________.

Answer 12

PFD, MFD, ND

Question 13

New electronics components designed to help the pilot perform preflight and/or flight management tasks and reduce paper on the flightdeck are known as _______________________ .

Answer 13

Electronic Flight Bags

Question 14

Many of the most modern flight displays receive a computer-generated image of terrain outside the aircraft as it would appear in daylight conditions with good visibility; this concept is known as _______________________.

Answer 14

Synthetic Vision

Question 15

A _______________________ system allows pilots to view flight-critical instruments, while at the same time keeping their “head up” in order to view the area outside the airplane windshield.

Answer 15

Heads Up Display

Question 16

For the most part, the terms autopilot and _______________________________ generically describe an automated system used
to assist the pilot to fly the aircraft.

Answer 16

Autoflight

Question 17

Commonly called a gyro, the purpose of a gyroscope is to remain _______________________, regardless of any movement of the gyro-mounting support or frame.

Answer 17

Stable in space

Question 18

One type of signal-generating device that consists of three coils mounted on an E-shape piece of laminated steel and that is often used in a gyroscopic sensor is called an _______________________________.

Answer 18

EI Pickoff

Question 19

As the name implies, an _____________ is a device that senses acceleration, and because this is a vector
force, both magnitude and direction must be measured.

Answer 19

Accelerometer

Question 20

_______________________________ pressure is a measure of the air pressure as it is pressed into the front of a moving aircraft;
_______________________________ pressure is the absolute pressure of the undisturbed air that surrounds the aircraft.

Answer 20

Pitot and Static

Question 21

The electronic compass, often called a remote compass or slaved compass system, consists of an electronic unit that measures the earth’s magnetic flux. A common term used to identify this system is _____________________________.

Answer 21

Flux valve/detector (Magnetometer)

Question 22

A device used to automatically move the aircraft’s control surface or engine throttles in response to an autopilot command is known as a _____________.

Answer 22

Servo

Question 23

An electrical signal that is directly proportional to the movement of the servo, the actuator, or the control surface is called a _________ signal.

Answer 23

Feedback

Question 24

There are two common types of feedback systems: AC _______________________________ and
_______________________________.

Answer 24

AC Synchro and Transducer

Question 25

Modern autopilots typically incorporate a system designed to control the rudder and eliminate Dutch roll; this system is called ____________.

Answer 25

Yaw Damper

Question 26

More modern corporate and commuter-type aircraft were often equipped with an integrated digital system that combines the autoflight functions, all electronic displays, and engine-indicating and warning systems; this system produced by Honeywell is known as _______________________________.

Answer 26

Primus

Question 27

Modern electronic tachometers may use a _______________________________ circuit to determine engine rpm.

Answer 27

Frequency Counter

Question 28

A temperature-sensitive semiconductor that changes in resistance proportion to small changes in temperature is known
as a _______________________________.

Answer 28

Thermistor

Question 29

The object being sensed by a typical proximity sensor is often referred to as the ________________________________.

Answer 29

Target

Question 30

Capacitor-type systems measure fuel quantity by _________________________________ rather than volume because the dielectric strength of the fuel changes in accordance with density.

Answer 30

Weight (mass)

Question 31

The _________________________________ receives input signals from several aircraft and engine sensors, processes this information, and sends it to the appropriate display.

Answer 31

Symbol Generator

Question 32

Most EFISs include some type of _________________________________ in order to access diagnostic data for system
maintenance.

Answer 32

Built in Test Equipment

Question 33

Variations of electronic flight instruments systems called _________________________________ and the
_________________________________ are used to display various system parameters, such as engine pressure ratio, rpm, and exhaust gas temperature.

Answer 33

EICAS/ECAM

Question 34

The EICAS level A messages are called _________________________________ and are displayed in red.

Answer 34

Warning messages

Question 35

The EICAS level B messages are _________________________________ and are displayed in amber

Answer 35

Caution messages

Question 36

The integrated display system found on the Cirrus SR-20 employs two _______________________ as the main processor units.

Answer 36

Integrated Avionics Units (IAU)

Question 37

The main instrument panel of the Airbus A-380 includes eight identical LCDs as part of the integrated system called the
_______________________________.

Answer 37

Control and Display Systems (CDS)

Question 38

The A-380 has two _______________________ located on the center console between the pilots.

Answer 38

Keyboard and Cursor Control Devices (KCCD)

Question 39

The A-380 CCD system employs the design concepts of _______________________ to reduce the number of LRUs needed to process display data.

Answer 39

Integrated Modular Avionics

Question 40

A combination of laser gyros and accelerometers is used to measure angular rates and accelerations in a system known as the _______________________________.

Answer 40

Inertial Reference Systems

Question 41

The _______________________________ is a panel-mounted instrument that combines heading information (compass data) and NDs (VOR and ILS/glide slope).

Answer 41

HSI

Question 42

Many modern autopilot systems have become integrated with other systems and perform a variety of functions; these are
often called ____________________________

Answer 42

Flight Management Systems