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Mixed Deck — All EIAT Topics Flashcards

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  1. Find the next number: 3, 7, 15, 31, ___?

    Answer: 63

    Each term follows the rule ×2 + 1, so 31 × 2 + 1 = 63.

  2. Which instrument is used to verify that an elevator car sill is level?

    Answer: Spirit level

    A spirit level with a bubble vial is used to confirm the car sill is perfectly horizontal.

  3. A hoist rope stretches 0.125 inch under load. Express this as a fraction in lowest terms.

    Answer: 1/8 inch

    0.125 = 125/1000 = 1/8 in lowest terms.

  4. What is the purpose of summarizing a text in Elevator Industry Aptitude Test assessment?

    Answer: To demonstrate understanding by condensing key points into a brief overview

    Summarizing demonstrates comprehension by requiring the reader to identify and articulate the most important points of a text in a concise format, showing they understand the essential content.

  5. Which type of thread provides the greatest mechanical advantage for converting rotary motion to linear motion, commonly used in elevator screw-drive systems?

    Answer: Acme thread

    Acme threads have a trapezoidal profile that provides high efficiency and load-bearing capacity for power transmission applications like screw-drive elevators.

  6. A load test weight of 907.2 kg is needed. Approximately how many pounds is that? (1 kg ≈ 2.205 lbs)

    Answer: 2,000 lbs

    907.2 kg × 2.205 lbs/kg ≈ 2,000 lbs.

  7. A staircase rises 8 inches per step and has a horizontal run of 10 inches per step. What is the total height of a 5-step staircase above the floor?

    Answer: 40 inches

    Total height equals the rise per step multiplied by the number of steps: 8 × 5 = 40 inches.

  8. What type of sentence is this: 'Inspect the cables before every shift.'?

    Answer: Imperative

    Imperative sentences give commands or instructions and often omit the subject 'you.'

  9. Which tractor has to drive farther in order to bring the boat to shore?

    Answer: 2

    Explanation: Tractor 2 will drive in a straight horizontal heading, in the same direction as the boat is from the shore. This is the shortest line possible. Tractor 1 will also drive in a horizontal line, but as it is tied to the boat diagonally it will therefore pull the boat over a larger distance. However, tractor 1 will have to apply less force due to the mechanical help from the rock (the same as in a movable pulley).

  10. A 1,000 kg elevator car is at rest. What is the tension in the supporting rope? (g = 9.8 m/s²)

    Answer: 9,800 N

    At rest (no acceleration), tension equals weight = 1,000 × 9.8 = 9,800 N.

  11. A tension spring stretches 3.175 cm under load. What is this measurement in millimeters?

    Answer: 31.75 mm

    3.175 cm × 10 mm/cm = 31.75 mm.

  12. A passage from a technical specification states: 'All wiring shall be run in conduit, except low-voltage signal wiring, which may be run in cable trays or raceways.' A 24V control signal wire would most appropriately be installed in:

    Answer: A cable tray or raceway

    At 24V, the wire qualifies as low-voltage signal wiring, which the specification explicitly permits to be run in cable trays or raceways.

  13. A solid steel shaft will resist twisting (torsion) better than a hollow shaft of the same outer diameter because:

    Answer: The statement is false — a hollow shaft with the same outer diameter often resists torsion nearly as well per unit weight

    A hollow shaft of equal outer diameter has nearly the same torsional rigidity as a solid one because material near the center contributes little to torsional resistance.

  14. A safety manual states: 'All personnel must wear hard hats in areas where overhead work is being performed.' A mechanic is working in the machine room above the elevator shaft. Which employees below MUST wear hard hats?

    Answer: Any employee in the elevator shaft below

    The rule applies to areas where overhead work is being performed, so anyone in the shaft below the mechanic must wear a hard hat.

  15. An elevator safety gear grips the guide rails to stop the car. The stopping force is an example of:

    Answer: Friction force

    Safety gear clamps the rail and uses friction to decelerate and stop the car.

  16. FAHRENHEIT is to ________ as POUND is to WEIGHT.

    Answer: Temperature

    Explanation: The analogy "FAHRENHEIT is to TEMPERATURE as POUND is to WEIGHT" indicates a relationship between units of measurement. Fahrenheit is a unit of temperature, while pound is a unit of weight.

  17. Choose the word that best completes the analogy: Brake is to stop as cable is to ___.

    Answer: suspend

    A brake functions to stop movement; a cable functions to suspend the elevator car.

  18. A wire rope makes two full wraps around a sheave. How many degrees of total rotation does this represent?

    Answer: 720 degrees

    One full wrap equals 360 degrees, so two full wraps equal 720 degrees.

  19. Which sentence uses 'fewer' and 'less' correctly?

    Answer: Fewer complaints were filed after the upgrade.

    'Fewer' applies to countable nouns like 'complaints,' while 'less' applies to uncountable quantities.

  20. A safety bulletin reads: 'Personnel must wear hard hats, safety glasses, and steel-toed boots in the machine room at all times.' Which item is NOT required by the bulletin?

    Answer: Hearing protection

    The bulletin lists hard hats, safety glasses, and steel-toed boots; hearing protection is not mentioned.