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USPS Error Detection Maintenance & Mechanics Flashcards

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

Read the first 6 USPS Error Detection Maintenance & Mechanics flashcards as text

  1. Which of the following sentences contains an error? (A) The forklift operator must inspect the vehicle before each shift begins. (B) Proper ventilation is essential when working with solvents in the maintenance bay. (C) The technician recalibrated the scale, which accuracy had been questioned by supervisors. (D) All replacement parts should be ordered through the approved vendor catalog.

    Answer: Sentence C

    Sentence C should use "whose" instead of "which" to show possession of "accuracy."

  2. Which of the following sentences contains an error? (A) Loose wiring inside the control panel caused intermittent power failures. (B) The maintenance team are responsible for keeping all processing equipment operational. (C) Damaged rollers on the conveyor system should be replaced within 24 hours. (D) Safety guards must never be removed while machinery is in operation.

    Answer: Sentence B

    Sentence B has a subject-verb agreement error; in American English, "team" is singular and requires "is."

  3. Which of the following sentences contains an error? (A) The postal carrier reported that the vehicle's transmission was slipping during delivery. (B) Maintenance records show a pattern of reoccurring failures in the sorting module. (C) Before servicing any electrical component, disconnect the power source. (D) The effect of delayed repairs on mail processing times can be significant.

    Answer: Sentence B

    Sentence B uses "reoccurring" incorrectly; the standard word is "recurring."

  4. Which of the following sentences contains an error? (A) Every mechanic is required to attend the quarterly safety training session. (B) The supervisor asked the crew to inspect, clean, and that they should test the equipment. (C) Pneumatic tools must be connected to the correct air pressure supply. (D) A detailed incident report was filed after the conveyor belt malfunction.

    Answer: Sentence B

    Sentence B breaks parallel structure by mixing infinitive verbs with a clause beginning with "that they should."

  5. Which of the following sentences contains an error? (A) The mechanic could of prevented the breakdown with a timely belt replacement. (B) All hazardous materials must be disposed of according to federal regulations. (C) The barcode scanner was realigned after producing inconsistent read rates. (D) Shift supervisors are expected to verify that all work orders have been completed.

    Answer: Sentence A

    Sentence A incorrectly uses "could of" instead of "could have" or "could've."

  6. Which of the following sentences contains an error? (A) Routine oil changes extend the lifespan of postal fleet vehicles considerably. (B) The technician whom repaired the sorter has over fifteen years of experience. (C) Battery-powered equipment should be charged overnight to ensure full capacity. (D) Keeping spare parts organized reduces downtime during emergency repairs.

    Answer: Sentence B

    Sentence B should use "who" instead of "whom" because it is the subject of the verb "repaired."