暗記メーカー

暗記メーカー

​

Aircraft Maintenance Fluid Lines & Fitting

Aircraft Maintenance Fluid Lines & Fitting
35問 • 1年前
  • AR Ramos
    • 通報

    問題一覧

  • 1

    Flexible lines must be installed with

    A slack of 5 to 8 percent of the length

  • 2

    Hydraulic tubing, which is damaged in a localized area to such an extent that repair is necessary, may be repaired

    By cutting out the damaged area and utilizing a swaged tube fitting to join the tube ends

  • 3

    Rolling-type flaring Tools are used to flare X, X, and X tubing

    Soft copper, aluminum, brass

  • 4

    If a flared tube coupling nut is overtightened, where is the tube most likely to be weakened/damaged?

    At the sleeve and flare junction

  • 5

    The maximum distance between end fittings to which a straight hose assembly is to be connected is 50 inches. The minimum hose length to make such a connection should be

    52-1/2 inches

  • 6

    Which statement (s) about Military Standard (MS) flareless fittings is/are correct? 1. During installation, MS flareless fittings are normally tightened by turning the nut a specified amount, rather than being torqued 2. New MS flareless tubing/fittings should be assembled clean and dry without lubrication 3. During installation, MS flareless fittings are normally tightened by applying a specified torque to the nut

    1

  • 7

    Which statement is true regarding flattening of tubing in bends?

    Flattening by not more than 25 percent of the original diameter is permissible

  • 8

    From the following sequences of steps, indicate the proper order you would use to make a single flare on a piece of tubing 1. Place the tube in the proper size hole in the flaring block 2. Project the end of the tube slightly from the top of the flaring tool, about the thickness of a dime 3. Slip the fitting nut and sleeve on the tube 4. Strike the plunger several light blows with a lightweight hammer or mallet and turn the plunger one-half turn after each blow 5. Tightened the clamp bar securely to prevent slippage 6. Center the plunger or flaring pin over the tube

    3,1,6,2,5,4

  • 9

    A gas or fluid line marked with the letters PHDAN is

    Used to carry a hazardous substance

  • 10

    Which coupling nut should be selected for use with 1⁄2 - inch aluminum oil lines which are to be assembled using flared tube ends and standard AN nuts, sleeves, and fittings?

    AN-818-8

  • 11

    Which statement concerning Bernoulli’s principle is true?

    The pressure of a fluid decreases at points where the velocity of the fluid increases

  • 12

    In most aircraft hydraulic systems, two-piece tube connectors consisting of a sleeve and a nut are used when a tubing flare is required. The use of this type connector eliminates

    The possibility of reducing the flare thickness by wiping or ironing during the tightening process

  • 13

    Which of the following hose materials are compatible with phosphate-ester base hydraulic fluids? 1. Butyl 2. Teflon 3. Buna-N 4. Neoprene

    1 and 2

  • 14

    The primary purpose of providing suitable bends in fluid and pneumatic metal tubing runs is to

    Prevent excessing stress on the tubing

  • 15

    What is the color of an AN steel flared-tube fitting

    Black

  • 16

    The material specifications for a certain aircraft require that a replacement oil line be fabricated from 3/4 –inch 0.072 5052-0 aluminum alloy tubing. What is the inside dimension of this tubing?

    0.606 inch

  • 17

    Which tubings have the characteristics (high strength, abrasion resistance) necessary for use in a high-pressure (3,000 PSI) hydraulic system for operation of landing gear and flaps?

    Corrosion-resistant steel annealed or 1/4H

  • 18

    Metal tubing fluid lines are sized by wall thickness and

    Outside diameter in 1/16 inch increments

  • 19

    (1) Bonded clamps are used for support when installing metal tubing (2) Unbonded clamps are used for support when installing wiring Regarding the above statements,

    Both No.1 and No.2 are true

  • 20

    What is an advantage of a double flare on aluminum tubing?

    More resistant to damage when the joint is tightened

  • 21

    A 3/8 aircraft high pressure flexible hose as compared to 3/8 inch metal tubing used in the same system will

    Have equivalent flow characteristics

  • 22

    When flaring aluminum tubing for use AN fittings, the flare angle must be

    37°

  • 23

    Scratches or nicks on the straight portion of aluminum alloy tubing may be repaired if they are no deeper than

    10 percent of the wall thickness

  • 24

    When installing bonded clamps to support metal tubing

    Remove paint or anodizing from tube at clamp location

  • 25

    Which of the following statements is true regarding minimum allowable bend radii for 1.5 inches OD or less aluminum alloy and steel tubing of the same size?

    The minimum radius for steel is greater than for aluminum

  • 26

    Excessive stress on fluid or pneumatic metal tubing caused by expansion and contraction due to temperature changes can best be avoided by

    Providing bends in the tubing

  • 27

    Which statement is true regarding the variety of symbols utilized on the identifying color-code bands that are currently used on aircraft plumbing lines

    symbols are always black against a white background regardless of line content

  • 28

    Which of the following statements is/are correct in reference to flare fittings? 1. AN fittings have an identifying shoulder between the end of the threads and the flare cone 2. AC and AN fittings are considered identical except for material composition and identifying colors 3. AN fittings are generally interchangeable with AC fittings of compatible material composition

    1

  • 29

    The term ‘cold flow’ is generally associated with

    Impressions left in natural or synthetic rubber hose material

  • 30

    When a Teflon hose has been in service for a time, what condition may have occurred and/or what precautions should be taken when it is temporarily removed from the aircraft?

    The hose may have developed a set, or have been manufactured with a pre-set shape, and must be supported to maintain its shape

  • 31

    A scratch or nick in aluminum tubing can be repaired provided it does not

    Appear in the heel of a bend

  • 32

    A certain amount of slack must be left in a flexible hose during installation because, when under pressure, it

    Contracts in length and expands in diameter

  • 33

    In a metal tubing installation,

    Tension is undesirable because pressurization will cause it to expand and shift

  • 34

    The best tool to use when cutting aluminum tubing, or any tubing of moderately soft metal is a

    Hand operated wheel-type cutter

  • 35

    Flexible hose used in aircraft systems is classified in size according to the

    Inside diameter

    • Airframe Wood Structure

    Airframe Wood Structure

    AR Ramos · 16問 · 1年前

    Airframe Wood Structure

    Airframe Wood Structure

    16問 • 1年前
    AR Ramos

    Airframe Aircraft Finishes

    Airframe Aircraft Finishes

    AR Ramos · 15問 · 1年前

    Airframe Aircraft Finishes

    Airframe Aircraft Finishes

    15問 • 1年前
    AR Ramos

    Airframe Aircraft Covering

    Airframe Aircraft Covering

    AR Ramos · 12問 · 1年前

    Airframe Aircraft Covering

    Airframe Aircraft Covering

    12問 • 1年前
    AR Ramos

    Airframe Ice & Rain Control Systems

    Airframe Ice & Rain Control Systems

    AR Ramos · 28問 · 1年前

    Airframe Ice & Rain Control Systems

    Airframe Ice & Rain Control Systems

    28問 • 1年前
    AR Ramos

    Aircraft Fire Extinguishing System

    Aircraft Fire Extinguishing System

    AR Ramos · 30問 · 1年前

    Aircraft Fire Extinguishing System

    Aircraft Fire Extinguishing System

    30問 • 1年前
    AR Ramos

    Airframe Aircraft Position And Warning System

    Airframe Aircraft Position And Warning System

    AR Ramos · 35問 · 1年前

    Airframe Aircraft Position And Warning System

    Airframe Aircraft Position And Warning System

    35問 • 1年前
    AR Ramos

    Aircraft Maintenance Ground Operation & Servicing

    Aircraft Maintenance Ground Operation & Servicing

    AR Ramos · 38問 · 1年前

    Aircraft Maintenance Ground Operation & Servicing

    Aircraft Maintenance Ground Operation & Servicing

    38問 • 1年前
    AR Ramos

    Aicraft Maintenance Engine Inspection

    Aicraft Maintenance Engine Inspection

    AR Ramos · 29問 · 1年前

    Aicraft Maintenance Engine Inspection

    Aicraft Maintenance Engine Inspection

    29問 • 1年前
    AR Ramos

    Aircraft Maintenance Cleaning & Corrosion Control

    Aircraft Maintenance Cleaning & Corrosion Control

    AR Ramos · 34問 · 1年前

    Aircraft Maintenance Cleaning & Corrosion Control

    Aircraft Maintenance Cleaning & Corrosion Control

    34問 • 1年前
    AR Ramos

    問題一覧

  • 1

    Flexible lines must be installed with

    A slack of 5 to 8 percent of the length

  • 2

    Hydraulic tubing, which is damaged in a localized area to such an extent that repair is necessary, may be repaired

    By cutting out the damaged area and utilizing a swaged tube fitting to join the tube ends

  • 3

    Rolling-type flaring Tools are used to flare X, X, and X tubing

    Soft copper, aluminum, brass

  • 4

    If a flared tube coupling nut is overtightened, where is the tube most likely to be weakened/damaged?

    At the sleeve and flare junction

  • 5

    The maximum distance between end fittings to which a straight hose assembly is to be connected is 50 inches. The minimum hose length to make such a connection should be

    52-1/2 inches

  • 6

    Which statement (s) about Military Standard (MS) flareless fittings is/are correct? 1. During installation, MS flareless fittings are normally tightened by turning the nut a specified amount, rather than being torqued 2. New MS flareless tubing/fittings should be assembled clean and dry without lubrication 3. During installation, MS flareless fittings are normally tightened by applying a specified torque to the nut

    1

  • 7

    Which statement is true regarding flattening of tubing in bends?

    Flattening by not more than 25 percent of the original diameter is permissible

  • 8

    From the following sequences of steps, indicate the proper order you would use to make a single flare on a piece of tubing 1. Place the tube in the proper size hole in the flaring block 2. Project the end of the tube slightly from the top of the flaring tool, about the thickness of a dime 3. Slip the fitting nut and sleeve on the tube 4. Strike the plunger several light blows with a lightweight hammer or mallet and turn the plunger one-half turn after each blow 5. Tightened the clamp bar securely to prevent slippage 6. Center the plunger or flaring pin over the tube

    3,1,6,2,5,4

  • 9

    A gas or fluid line marked with the letters PHDAN is

    Used to carry a hazardous substance

  • 10

    Which coupling nut should be selected for use with 1⁄2 - inch aluminum oil lines which are to be assembled using flared tube ends and standard AN nuts, sleeves, and fittings?

    AN-818-8

  • 11

    Which statement concerning Bernoulli’s principle is true?

    The pressure of a fluid decreases at points where the velocity of the fluid increases

  • 12

    In most aircraft hydraulic systems, two-piece tube connectors consisting of a sleeve and a nut are used when a tubing flare is required. The use of this type connector eliminates

    The possibility of reducing the flare thickness by wiping or ironing during the tightening process

  • 13

    Which of the following hose materials are compatible with phosphate-ester base hydraulic fluids? 1. Butyl 2. Teflon 3. Buna-N 4. Neoprene

    1 and 2

  • 14

    The primary purpose of providing suitable bends in fluid and pneumatic metal tubing runs is to

    Prevent excessing stress on the tubing

  • 15

    What is the color of an AN steel flared-tube fitting

    Black

  • 16

    The material specifications for a certain aircraft require that a replacement oil line be fabricated from 3/4 –inch 0.072 5052-0 aluminum alloy tubing. What is the inside dimension of this tubing?

    0.606 inch

  • 17

    Which tubings have the characteristics (high strength, abrasion resistance) necessary for use in a high-pressure (3,000 PSI) hydraulic system for operation of landing gear and flaps?

    Corrosion-resistant steel annealed or 1/4H

  • 18

    Metal tubing fluid lines are sized by wall thickness and

    Outside diameter in 1/16 inch increments

  • 19

    (1) Bonded clamps are used for support when installing metal tubing (2) Unbonded clamps are used for support when installing wiring Regarding the above statements,

    Both No.1 and No.2 are true

  • 20

    What is an advantage of a double flare on aluminum tubing?

    More resistant to damage when the joint is tightened

  • 21

    A 3/8 aircraft high pressure flexible hose as compared to 3/8 inch metal tubing used in the same system will

    Have equivalent flow characteristics

  • 22

    When flaring aluminum tubing for use AN fittings, the flare angle must be

    37°

  • 23

    Scratches or nicks on the straight portion of aluminum alloy tubing may be repaired if they are no deeper than

    10 percent of the wall thickness

  • 24

    When installing bonded clamps to support metal tubing

    Remove paint or anodizing from tube at clamp location

  • 25

    Which of the following statements is true regarding minimum allowable bend radii for 1.5 inches OD or less aluminum alloy and steel tubing of the same size?

    The minimum radius for steel is greater than for aluminum

  • 26

    Excessive stress on fluid or pneumatic metal tubing caused by expansion and contraction due to temperature changes can best be avoided by

    Providing bends in the tubing

  • 27

    Which statement is true regarding the variety of symbols utilized on the identifying color-code bands that are currently used on aircraft plumbing lines

    symbols are always black against a white background regardless of line content

  • 28

    Which of the following statements is/are correct in reference to flare fittings? 1. AN fittings have an identifying shoulder between the end of the threads and the flare cone 2. AC and AN fittings are considered identical except for material composition and identifying colors 3. AN fittings are generally interchangeable with AC fittings of compatible material composition

    1

  • 29

    The term ‘cold flow’ is generally associated with

    Impressions left in natural or synthetic rubber hose material

  • 30

    When a Teflon hose has been in service for a time, what condition may have occurred and/or what precautions should be taken when it is temporarily removed from the aircraft?

    The hose may have developed a set, or have been manufactured with a pre-set shape, and must be supported to maintain its shape

  • 31

    A scratch or nick in aluminum tubing can be repaired provided it does not

    Appear in the heel of a bend

  • 32

    A certain amount of slack must be left in a flexible hose during installation because, when under pressure, it

    Contracts in length and expands in diameter

  • 33

    In a metal tubing installation,

    Tension is undesirable because pressurization will cause it to expand and shift

  • 34

    The best tool to use when cutting aluminum tubing, or any tubing of moderately soft metal is a

    Hand operated wheel-type cutter

  • 35

    Flexible hose used in aircraft systems is classified in size according to the

    Inside diameter