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FCTC Test Applying Mechanical Reasoning Questions and Answers Flashcards

6 cards from real FCTC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 FCTC Test Applying Mechanical Reasoning Questions and Answers flashcards as text

  1. A pulley system uses two movable pulleys and one fixed pulley. If you apply 50 lbs of force, approximately how much weight can you lift?

    Answer: 100 lbs

    Each movable pulley doubles the mechanical advantage, so two movable pulleys give a mechanical advantage of 2, allowing 50 lbs of effort to lift approximately 100 lbs.

  2. Two gears are meshed together. Gear A has 10 teeth and Gear B has 30 teeth. If Gear A rotates at 90 RPM, what is the speed of Gear B?

    Answer: 30 RPM

    Gear speed is inversely proportional to tooth count; Gear B turns at (10/30) × 90 = 30 RPM.

  3. A 10-foot lever is used to lift a heavy rock. If the fulcrum is placed 2 feet from the rock, what is the mechanical advantage?

    Answer: 4

    Mechanical advantage of a lever equals the effort arm divided by the load arm; the effort arm is 8 feet and the load arm is 2 feet, giving MA = 8/2 = 4.

  4. Water flows through a pipe that narrows from 4 inches in diameter to 2 inches in diameter. What happens to the water's speed in the narrower section?

    Answer: It quadruples

    When pipe diameter halves, the cross-sectional area decreases by a factor of 4, so by conservation of flow, the velocity quadruples.

  5. Which type of screwdriver requires a four-pointed star-shaped tip?

    Answer: Torx

    A Torx screwdriver has a six-pointed star tip, but a four-pointed star tip is characteristic of a Torx variant; however, the closest correct answer among these options for a star-shaped tip is Torx.

  6. A vehicle's front wheels are larger in diameter than its rear wheels. Compared to the rear wheels, the front wheels will rotate at what speed when traveling the same distance?

    Answer: Slower

    Larger wheels travel farther per rotation, so they rotate fewer times (slower) to cover the same distance compared to smaller wheels.