Practice Test Geeks(CEM) Certified Emergency Manager Practice Test
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Technical Skills & Application Flashcards

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

Read the first 7 Technical Skills & Application flashcards as text

  1. A CEM is evaluating whether to rebuild or replace a failed diesel engine. The rebuild quote is 65% of the replacement cost. What additional factor is MOST critical to this decision?

    Answer: Remaining service life of the machine relative to rebuilt engine warranty

    If the machine has limited remaining economic life, investing 65% of a new engine cost in a rebuild may not be recoverable before the machine is retired.

  2. When calibrating a motor grader blade cross-slope using an indicate system, which sensor input provides the primary cross-slope reference?

    Answer: An in-cab pendulum or MEMS-based slope sensor mounted perpendicular to the blade

    Cross-slope control relies on an accelerometer or MEMS slope sensor measuring blade tilt angle relative to gravity perpendicular to the direction of travel.

  3. Which test BEST determines whether an engine's turbocharger is delivering adequate boost pressure for its rated output?

    Answer: Recording boost pressure under load with a calibrated gauge or scan tool and comparing to OEM specification

    Comparing measured boost pressure against the OEM specification under rated load is the definitive test for turbocharger performance adequacy.

  4. A CEM finds that a compactor's vibratory system runs at only 75% of the specified frequency. The most likely cause in an eccentric-weight vibratory system is:

    Answer: Hydraulic motor case drain restriction causing over-pressurization and speed reduction

    A restricted case drain line increases back-pressure on the hydraulic motor, acting as a braking force that reduces shaft speed below specification.

  5. Which ANSI/SAE standard governs the rated operating capacity (ROC) of compact construction equipment such as skid steer loaders?

    Answer: SAE J818 / ANSI/ITSDF B56 rated load at 35% of tipping load

    SAE J818 establishes that the ROC for skid steer loaders is 35% of the static tipping load, providing the rated capacity operators and planners must not exceed.

  6. A diesel engine experiences white smoke at startup that clears within two minutes of warm-up. The MOST likely cause is:

    Answer: Incomplete combustion of fuel due to low cylinder temperature before warm-up, producing unburned fuel mist

    White smoke that clears after warm-up is caused by unburned fuel condensing in cool exhaust; once cylinders reach operating temperature, combustion is complete and smoke stops.

  7. When selecting replacement wire rope for a crane, which factor has the GREATEST influence on fatigue life when the rope must operate over small-diameter sheaves?

    Answer: Wire count per strand (more wires = greater flexibility and fatigue life)

    Ropes with more, thinner wires per strand distribute bending stress over a larger number of wires, significantly extending fatigue life when operating over small-radius sheaves.