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The MIL8 exam has 50 questions and runs 1 hours.
These 10 free MIL8 questions are organized by exam domain, so you can see how each part of the ASE Military Tactical Wheeled Vehicle Certification - MIL8 Preventive Maintenance Checks & Services (PMCS) blueprint is tested. Reveal the answer and explanation under each question.
A cleaned transfer-case seal develops a hanging oil drop during reinspection, but no drop falls. The oil level is correct. The vehicle's technical manual permits operation with Class I or Class II leakage at this seal if the condition is recorded and the level is monitored. Which entry and disposition are consistent with this finding?
Correct answer: B - Class II; document the leak and monitor the level.
An FMTV loses pulling power and produces black exhaust smoke on a grade. Intake restriction is within specification, but a hiss develops under load and a fresh oily dirt track surrounds a charge-air hose joint. Which fault best fits this combination?
Correct answer: C - A leaking charge-air hose connection.
After a dusty convoy, a verified air-cleaner restriction indicator remains below the manufacturer's service mark under the required test conditions. No scheduled element change is due, and there is no evidence of intake damage. What service is justified at this point?
Correct answer: B - Leave the element installed and record the restriction reading.
Immediately after a scheduled fuel-filter change, a common-rail diesel that previously ran normally cranks at normal speed but will not start. The correct filter and seals are installed, and fuel is available in the tank. This system has a hand primer and designated low-pressure bleed points. The most appropriate first action is to:
Correct answer: C - Prime and bleed the low-pressure fuel circuit.
During cab PMCS, the central tire inflation system (CTIS) fault lamp remains on. A technician scans only the engine controller, finds no current or historical engine DTCs, and records the electronic checks as satisfactory. What diagnostic step has been omitted?
Correct answer: A - Read the CTIS controller's fault information with compatible equipment.
A HMMWV cranks slowly even though its batteries pass their load tests. During cranking, the 24-volt battery pack measures 23.6 V across its end posts. Voltage drop from the pack's positive post to the starter B+ terminal is 3.2 V; drop from the starter case to the pack's negative post is 0.1 V. Where should testing be concentrated next?
Correct answer: A - The positive starter cable and its connections.
One 12-volt flooded lead-acid battery is isolated from a 24-volt starting pack. After resting at 70°F, it reads 12.1 V open circuit. Without charging it, a technician applies one-half its rated CCA for 15 seconds, obtains 8.9 V, and condemns the battery. What must occur before that conclusion is justified?
Correct answer: C - Recharge the battery and repeat the specified load test.
For an applied-air-leakage check on a straight truck, the approved procedure allows no more than 3 psi/min after pressure stabilizes. With wheels chocked, engine off, and parking brakes released, pressure is 120 psi before the service brake is applied. It settles at 114 psi after the initial application, then falls to 112 psi during one full minute of steady brake application. How should this test be recorded?
Correct answer: D - 2 psi/min; within the specified applied-leakage limit.
A military tractor and semitrailer resist a gentle tug after coupling, and the release handle is in its locked position. Inspection nevertheless reveals a gap between the trailer's upper coupler plate and the fifth wheel. What is the appropriate response to this discrepancy?
Correct answer: D - Secure and support the trailer, then recouple and verify the lock.
A driveline vibration appears immediately after a propeller shaft's slip joint is separated and reassembled. The shaft tube is straight, balance weights are present, and U-joints have no detectable play. The original spline index was not preserved. Which inspection is most directly related to the recent work?
Correct answer: B - Slip-spline indexing and the resulting U-joint phasing.
The MIL8 exam also covers these domains. Drill them in the full free practice test:
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