7.13 Control Cables Flashcards
When setting up the Kearney® Swaging Tool, where should the roll die marked “UPPER” be installed?
A. On the top shaft of the machine with the word “UPPER” visible, stamped on one flat side of the roll die, is visible.
B. On the bottom shaft of the machine with the pins protruding.
C. On either shaft of the machine, as long as it is secure.
A. On the top shaft of the machine with the word “UPPER” visible, stamped on one flat side of the roll die, is visible.
What is the correct installation of the roll die marked “LOWER” on the Kearney® Swaging Tool?
A. On the top shaft with the word “LOWER” visible.
B. On the bottom shaft with the word “LOWER” visible and the two pins protruding on the outside.
C. On either shaft, as long as the pins are inside.
B. On the bottom shaft with the word “LOWER” visible and the two pins protruding on the outside.
How do we check the diameter of the terminal shank during the swaging process?
A. By using the no/no-go gauge.
B. By visually inspecting the shank.
C. By using a standard ruler.
A. By using the no/no-go gauge.
What is the maximum number of passes allowed during the swaging process?
A. No more than 2 passes.
B. No more than 4 passes.
C. No limit on the number of passes as long as the diameter is correct.
B. No more than 4 passes.
What is a potential consequence of over-swaging?
A. The terminal shank will be too flexible.
B. It can cause work hardening or lead to embrittlement.
C. The terminal shank will not fit into the swaging tool.
B. It can cause work hardening or lead to embrittlement.
To what percentage of its breaking strength must a cable be loaded during testing?
A. 50%
B. 60%
C. 70%
B. 60%
How long must the load be held during cable testing?
A. At least 1 minute.
B. At least 3 minutes.
C. At least 5 minutes.
B. At least 3 minutes.
What tool is used to apply the load during cable testing?
A. A swaged terminal pull tester.
B. A tension gauge.
C. A standard hydraulic press.
A. A swaged terminal pull tester.
How often is an inspection of all control cables performed?
A. Every 100 hours.
B. Every 50 hours.
C. Every 200 hours.
A. Every 100 hours.
Which of the following is considered a critical fatigue area for control cables?
A. Where the cable runs over, under, or around a pulley or through a fair-lead.
B. Where the cable is secured and does not move.
C. Where the cable is attached to a stationary fitting.
A. Where the cable runs over, under, or around a pulley or through a fair-lead.
Where is another critical fatigue area for control cables?
A. Any section where the cable is flexed or rubbed.
B. Any section where the cable is completely straight.
C. Any section where the cable is painted for identification.
A. Any section where the cable is flexed or rubbed.
What is considered a critical fatigue area near a swaged end fitting?
A. Any point within 12 inches of the fitting.
B. Any point within 6 inches of the fitting.
C. Any point within 24 inches of the fitting.
A. Any point within 12 inches of the fitting.
How should a close inspection be conducted in critical fatigue areas of control cables?
A. By visually inspecting the area with a magnifying glass.
B. By passing a cloth over the area to snag on broken wires.
C. By using an electronic tester to check for broken strands.
B. By passing a cloth over the area to snag on broken wires.
What material are fair leads typically made from?
A. Steel or aluminum.
B. Soft plastic or fiber, such as Nylon® or Tufnell®.
C. Rubber or silicone
B. Soft plastic or fiber, such as Nylon® or Tufnell®.
What is the primary purpose of a fair lead?
A. To change the direction of a cable.
B. To guide cables.
C. To secure the cable to the aircraft.
B. To guide cables.
How is the guard pin on a fair lead typically secured?
A. With a nut and bolt.
B. With a clevis pin secured with a split pin.
C. With a locking screw.
B. With a clevis pin secured with a split pin.
Can fair leads be used to change the direction of a cable?
A. Yes, fair leads are designed to change the direction of cables.
B. No, fair leads must never be used to change the direction of a cable.
C. Only certain types of fair leads can be used to change the direction of cables.
B. No, fair leads must never be used to change the direction of a cable.
What is the purpose of a turnbuckle?
A. To change the tension on a cable.
B. To secure the cable in place.
C. To measure the tension on the cable.
A. To change the tension on a cable.
Which side of a turnbuckle is marked with grooves?
A. The right-hand side.
B. The left-hand side.
C. Both sides.
B. The left-hand side.
What tool is used to measure the tension on a cable?
A. A caliper.
B. A tensiometer.
C. A torque wrench.
B. A tensiometer.
How accurate is the tensiometer for measuring cable tension?
A. 80% accurate.
B. 98% accurate.
C. 100% accurate.
B. 98% accurate.
What type of reading does a tensiometer provide when measuring cable tension?
A. It provides an exact measurement.
B. It provides an arbitrary reading.
C. It provides a digital reading.
B. It provides an arbitrary reading. (Has no SI Units)
What is the primary function of Bowden cables?
A. To transmit electrical signals.
B. To transmit mechanical force or energy by the movement of an inner cable running inside a conduit.
C. To control the flow of fuel through an engine.
B. To transmit mechanical force or energy by the movement of an inner cable running inside a conduit.
What covers the Bowden cable to protect it from moisture and contaminants?
A. A steel casing.
B. A cotton braiding, which is housed in a conduit.
C. A plastic coating.
B. A cotton braiding, which is housed in a conduit.
What is the characteristic of Bowden cables in terms of force transmission?
A. They are used for both push and pull forces.
B. They are used for push only.
C. They are used for pull only.
C. They are used for pull only.
What should be done if deformation, bends, or kinks are detected in a Bowden cable during inspection?
A. The cable can be repaired and reused.
B. The cable should be cleaned and reinstalled.
C. The cable should be removed and replaced.
C. The cable should be removed and replaced.
What type of force can a Teleflex cable system handle?
A. Pull only.
B. Push and pull.
C. Push only.
B. Push and pull.
How should the cable be attached in a single entry Telefaxed end fitting?
A. The cable should be inserted into the pinion slot and wrap at least 40 degrees.
B. The cable should be inserted into the pinion slot and wrap 180 degrees.
C. The cable should be inserted straight into the fitting without wrapping.
A. The cable should be inserted into the pinion slot and wrap at least 40 degrees.
How should the cable be attached in a double entry Telefaxed end fitting?
A. The cable should wrap 90 degrees and pass through the lead-out hole.
B. The cable should wrap 180 degrees and pass through the lead-out hole without blanking the conduit.
C. The cable should be inserted without any wrapping, and the fitting should be sealed.
B. The cable should wrap 180 degrees and pass through the lead-out hole without blanking the conduit.
What is the purpose of a pulley in a cable system?
A. To increase the tension of the cable.
B. To change the direction of the cable.
C. To protect the cable from damage.
B. To change the direction of the cable.
What can cables passing over pulleys and quadrants be subjected to?
a) External corrosion
b) Internal wear
c) Electrical interference
b) Internal wear
