Aircraft Instruments Overview
32 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is one function of the detecting element mentioned in the document?

  • To measure temperature variations
  • To calculate angular velocity
  • To detect changes in pressure (correct)
  • To determine altitude

    • Which mechanism is used to measure physical quantities?

  • Translational or angular displacement (correct)
  • Chemical reaction
  • Electromagnetic induction
  • Thermal expansion

    • What happens to measured physical quantity values as discussed?

  • Values are transmitted without change
  • Values remain constant
  • Values are magnified before transmission (correct)
  • Values are minimized for accuracy

    • How is the value of the measured quantity exhibited?

    <p>By relative position of a pointer</p> Signup and view all the answers

    In the context of the document, what does the physical quantity refer to?

    <p>Any dynamic change or condition</p> Signup and view all the answers

    What is the objective described in the document regarding the elements of the instrument?

    <p>To describe the 4 elements and mechanisms of instruments</p> Signup and view all the answers

    What is meant by 'issue' in the context of the documents?

    <p>The version or revision of the document</p> Signup and view all the answers

    What kind of displacement is relevant for measuring physical quantities as mentioned?

    <p>Both translational and angular displacement</p> Signup and view all the answers

    What is the primary function of the measuring element in pressure instruments?

    <p>To measure changes in pressure</p> Signup and view all the answers

    Which of the following materials is NOT commonly used for measuring elements?

    <p>Aluminum</p> Signup and view all the answers

    What is the maximum pressure that a Bourdon Tube can measure?

    <p>3,000 psi</p> Signup and view all the answers

    Which type of coupling element involves a physical joint to connect measuring and indicating elements?

    <p>Mechanical Coupling</p> Signup and view all the answers

    What is the purpose of the indicating element in a pressure measuring instrument?

    <p>To display the value of the transmitted quantity</p> Signup and view all the answers

    In a mercury barometer, the height of mercury measures which type of pressure?

    <p>Absolute pressure</p> Signup and view all the answers

    What principle is the Dead Weight Tester based on?

    <p>Force = Pressure x Area</p> Signup and view all the answers

    What material is a diaphragm used in differential pressure measurement primarily made of?

    <p>Beryllium and copper</p> Signup and view all the answers

    What is the function of an aneroid capsule?

    <p>To measure absolute pressure</p> Signup and view all the answers

    Which element of an instrument is responsible for indicating the measured value?

    <p>Indicating element</p> Signup and view all the answers

    How does a Bourdon tube work when pressure is applied?

    <p>It attempts to straighten</p> Signup and view all the answers

    What material is an aneroid capsule primarily made from?

    <p>Beryllium and copper</p> Signup and view all the answers

    Which of the following is NOT one of the four elements of an instrument?

    <p>Modulating element</p> Signup and view all the answers

    What is the purpose of the coupling element in an instrument?

    <p>To amplify and transmit displacement to the indicator</p> Signup and view all the answers

    What principle does the bellows measurement device operate on?

    <p>Helical compression spring principle</p> Signup and view all the answers

    Which of these elements is responsible for measuring changes in physical quantities?

    <p>Measuring element</p> Signup and view all the answers

    What is the primary function of a hairspring in a mechanism?

    <p>To serve as a controlling device against deflecting force</p> Signup and view all the answers

    What role does a lever play in a mechanism?

    <p>To amplify input displacement to output movement</p> Signup and view all the answers

    Which of the following best describes the purpose of a rod in a mechanism?

    <p>To serve as a screw joint linkage for interconnection</p> Signup and view all the answers

    What is the main advantage of using a gear mechanism?

    <p>To provide magnification of the measuring element for the pointer</p> Signup and view all the answers

    What should be avoided to ensure the proper functioning of gears?

    <p>Jamming of the gears</p> Signup and view all the answers

    Which statement is true regarding component parts in a mechanism?

    <p>Hairsprings are essential for controlling deflection forces.</p> Signup and view all the answers

    What is a coupling element primarily used for in mechanism design?

    <p>To connect mechanical parts and transfer motion</p> Signup and view all the answers

    What problem needs to be solved to maintain the efficiency of a gear mechanism?

    <p>Avoiding jamming of the gears</p> Signup and view all the answers

    Study Notes

    Aircraft Instruments

    • Images display various aircraft instrument panels with numerous gauges
    • Instruments include airspeed indicators, electrical gauges, turn coordinators, vacuum gauges, vertical speed indicators, and others.
    • Airspeed readings range from 80 to 180 knots.
    • Units like vertical speed are shown in feet per minute.
    • Data like, electrical readings, and heading are presented.

    Basic Aircraft Instruments

    • Displays various aircraft instrument panels.
    • Readings for airspeed, electrical components, turn indicators, vacuum gauges, and vertical speeds are presented.
    • Important data like heading or position is shown.

    Aircraft Instrument Panel

    • Shows a comprehensive cockpit instrument panel.
    • Various gauges display diverse information, including engine data, navigation, and flight parameters.
    • A wide range of information is shown, including navigation, fuel level, and other critical operational data.

    Electronic Flight Instrument System Display

    • Presents images of an electronic flight instrument system display.
    • Images depict a cockpit with several electronic displays showing various flight information.
    • Includes information such as altitude, airspeed, heading, and electronic displays.

    Objective 1: CLO2

    • Focuses on describing the four elements and mechanisms of instruments.
    • Diagrams show different components of gauges and their functions.
    • Includes parts like diaphragms, pilot tubes, ram air, and static lines.

    Atmospheric Measurement

    • Instruments are used to measure atmospheric pressure.
    • A mercury barometer is an example device that measures pressure.
    • The height of mercury in the tube corresponds to the atmospheric pressure.
    • The mercury barometer measures absolute pressure.

    Dead Weight Tester

    • A device used for calibrating direct-reading pressure gauges.
    • A diagram shows the internal components of the dead weight tester.
    • Components such as a piston, reservoir, and an inlet valve are seen.
    • The device is used to measure mass, area, and force in pressure calibration.

    Differential Pressure Measurement

    • Explains differential pressure measurement using devices like diaphragms.
    • Diaphragms are used in differential pressure measurements.
    • They are made of flexible material that changes shape based on pressure difference.
    • Diagrams show various diaphragm types.

    Absolute Pressure Measurement

    • Describes how absolute pressure is measured.
    • A capsule made of two diaphragms is used to measure absolute pressure.
    • The diaphragm assembly forms an enclosed chamber sensitive to ambient pressure changes.
    • The capsule's deformation responds to these changes.

    Bellows

    • This refers to measurement of pressure changes using bellows.
    • Bellows are corrugated diaphragms, similar to helical compression springs.
    • Bellows are commonly made of beryllium and copper alloys.

    Bourdon Tube

    • Describes Bourdon tubes, used primarily for high-pressure measurements.
    • This device consists of a curved tube.
    • The curvature changes with the applied pressure, used to measure pressures.

    Diaphragm & Capsule

    • Explains how diaphragms and capsules function in measuring pressure.
    • Different types of diaphragms, from flat to corrugated, are presented.
    • Capsule types, like dished and corrugated are also shown.

    Summary Q

    • A set of questions about the elements of instruments and their functions is provided.

    4 Mechanism of an Instrument

    • Lists the four main mechanisms of direct-reading instruments: rod, lever, gear, and hairspring.
    • Diagrams are provided to showcase the physical layouts of the elements.

    Mechanism

    • Details the construction of a rod-based mechanism used in instruments.

    Lever

    • Explains that a lever is used as a coupling element in instruments.
    • Details the process of the lever in instrument coupling.
    • Provides details on the lever's construction as a coupling element.

    Gear Mechanism

    • Discusses gear mechanisms in instruments.
    • Provides details about the gears and their function in magnification and transmission of movement and output.
    • Includes charts, diagrams and drawings.

    Hairspring

    • Explains the function of a hairspring mechanism.
    • Provides a detailed description of its role in controlling devices against deflecting force.
    • Explains the device's usage in various applications.

    Gear Problem?

    • A summary explaining the problem of 'backlash' in gear systems connected with loss of motion.
    • Provides possible solutions to avoid jamming.

    1. Coil Hairspring & 2. Anti-Backlash Gear

    • Provides information on coil hairsprings and anti-backlash gears and their mechanisms.
    • Describes the role of these components in the overall instrumentation.

    Summary Q

    • Questions covering different aspects of instrument mechanisms are presented.
    • Questions relating to rods, levers, gears, hairsprings, are included.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Instrument Element Mechanism PDF

    Description

    Explore the essential instruments found in aircraft cockpits through a visual quiz. This quiz covers various gauges, including airspeed indicators, electrical gauges, and vertical speed indicators, detailing their readings and functions. Test your knowledge of critical flight parameters and aviation instrument panels.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser