1s051 Volume 3 (Edit Code 5)

100 Questions | Total Attempts: 104

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Electronics Quizzes & Trivia

FOR REFERENCE USE ONLY


Questions and Answers
  • 1. 
    Which of the following is an improper way to store pliers, screwdrivers or wrenches?
    • A. 

      A. Rack, shelves or tool boxes.

    • B. 

      B. Pant or coat pockets.

    • C. 

      C. Carrying bags.

    • D. 

      D. Tool belts.

  • 2. 
    What is the chief hazard associated with electrically powered tools?
    • A. 

      A. Fire.

    • B. 

      B. Flash burns.

    • C. 

      C. Hand injuries.

    • D. 

      D. Electrical shock.

  • 3. 
    On an electric drill, the chuck
    • A. 

      A. must be securely anchored against the shank of the drill bit.

    • B. 

      B. must be released before the drill is turned on.

    • C. 

      C. should be loosely attached to the drill bit.

    • D. 

      D. must be depressed to release the lock.

  • 4. 
    A twist drill bit with four flutes should only be used to
    • A. 

      A. start holes in sheet metal.

    • B. 

      B. start holes in plaster.

    • C. 

      C. enlarge cored holes.

    • D. 

      D. drill into plaster.

  • 5. 
    Maintenance on soldering irons and guns is primarily centered on the
    • A. 

      A. tips.

    • B. 

      B. handle.

    • C. 

      C. shank.

    • D. 

      D. power cord.

  • 6. 
    Machine guarding is necessary primarily because
    • A. 

      A. machines do not perform in a consistent manner.

    • B. 

      B. most hazards can be eliminated through engineering.

    • C. 

      C. a machine’s moving parts are fragile and must be protected.

    • D. 

      D. people are unpredictable and may perform their work inconsistently.

  • 7. 
    To prevent mishaps involving machinery, the best action, which should be pursued first, is to
    • A. 

      A. educate the worker.

    • B. 

      B. engineer hazards out.

    • C. 

      C. use machine guards for existing hazards.

    • D. 

      D. provide personal protective equipment.

  • 8. 
    In-running nip points are a specific danger of which type of motion?
    • A. 

      A. Cutting.

    • B. 

      B. Rotating.

    • C. 

      C. Transverse.

    • D. 

      D. Reciprocating.

  • 9. 
    Which hazard is commonly associated with a transverse motion?
    • A. 

      A. Projections on the rotating parts may injure the worker.

    • B. 

      B. Flying chips or scraps are likely to strike the operator.

    • C. 

      C. The worker may be struck or caught in a pinch by the moving part.

    • D. 

      D. The worker may be caught between a moving and stationary part.

  • 10. 
    Which type of machine guard is preferable to all others?
    • A. 

      A. Fixed.

    • B. 

      B. Interlock.

    • C. 

      C. Adjustable.

    • D. 

      D. Self-adjusting.

  • 11. 
    Which guard will not allow a machine to start until the guard is in its proper place?
    • A. 

      A. Fixed.

    • B. 

      B. Interlock.

    • C. 

      C. Adjustable.

    • D. 

      D. Self-adjusting.

  • 12. 
    If a machine guard opens when stock is moved into the danger area and returns to a rest position when the stock is removed, that guard is
    • A. 

      A. fixed.

    • B. 

      B. adjustable.

    • C. 

      C. interlocking.

    • D. 

      D. self-adjusting.

  • 13. 
    Which safety device uses operator wristbands to ensure a worker’s hands are automatically withdrawn from the point of operation?
    • A. 

      A. Gate.

    • B. 

      B. Holdout.

    • C. 

      C. Pull-out.

    • D. 

      D. Presence sensing.

  • 14. 
    Which safety device resembles an interlocked machine guard?
    • A. 

      A. Gate.

    • B. 

      B. Holdout.

    • C. 

      C. Pull-out.

    • D. 

      D. Presence sensing.

  • 15. 
    To ensure proper layout, equipment and machinery must be arranged
    • A. 

      A. so that weight is distributed equally.

    • B. 

      B. to permit an even flow of materials.

    • C. 

      C. clockwise most hazardous to least hazardous.

    • D. 

      D. so that similar hazards are located close together.

  • 16. 
    In a machine shop, how many inches wide should aisles be to permit free movement of workers and equipment?
    • A. 

      A. 12.

    • B. 

      B. 18.

    • C. 

      C. 24.

    • D. 

      D. 36.

  • 17. 
    The flow of electricity may be compared to
    • A. 

      A. a streak of lightning.

    • B. 

      B. water running through a pipe.

    • C. 

      C. water passing through the ground.

    • D. 

      D. lightning passing through the ground.

  • 18. 
    What unit of measurement is used to measure electrical pressure, potential, or electromotive force?
    • A. 

      A. Volts.

    • B. 

      B. Ohms.

    • C. 

      C. Amperes.

    • D. 

      D. Coulombs.

  • 19. 
    According to the federal regulation 29 Code of Federal Regulation (CFR) 1910, Occupation Safety and Health Standards, voltage is considered to be high at
    • A. 

      A. 120 volts.

    • B. 

      B. 220 volts.

    • C. 

      C. 440 volts.

    • D. 

      D. 600 volts.

  • 20. 
    The primary factor influencing the severity of electrical shock to the human body is the
    • A. 

      A. length of the exposure.

    • B. 

      B. amount of the current flow.

    • C. 

      C. level of the voltage applied.

    • D. 

      D. frequency of the electrical charge.

  • 21. 
    How much current causes a normally harmless shock to be felt?
    • A. 

      A. 1 milliampere.

    • B. 

      B. 25 milliamperes.

    • C. 

      C. 1 ampere.

    • D. 

      D. 25 ampere.

  • 22. 
    What range of current, if it lasts for one second or longer, may produce an immediately fatal electrical shock?
    • A. 

      A. 10 to 15 milliamperes.

    • B. 

      B. 25 to 50 milliamperes.

    • C. 

      C. 60 to 75 milliamperes.

    • D. 

      D. 100 to 300 milliamperes.

  • 23. 
    The body can normally tolerate
    • A. 

      A. direct currents (DC) one to two times greater than alternating currents (AC).

    • B. 

      B. DCs three to five times greater than ACs.

    • C. 

      C. ACs six to nine times greater than DC.

    • D. 

      D. ACs 10 to 12 times greater than DCs.

  • 24. 
    What is the purpose of placing bonding wire between two metal objects?
    • A. 

      A. Continuity of system grounds.

    • B. 

      B. Equalization of static charges that may be generated.

    • C. 

      C. Dissipation of static electrical charges to a ground.

    • D. 

      D. Prevention of accumulations of dynamic electricity.

  • 25. 
    An example of a system ground is a
    • A. 

      A. three-prong adapter.

    • B. 

      B. double-insulated tool.

    • C. 

      C. return wire attached to a ground in the earth.

    • D. 

      D. wire attached to the frame of a tool and a metal bar.