Free ASE Transit Bus Preventive Maintenance and Inspection (H8) Test Practice Questions

Sample Practice Questions

Try these 10 sample questions from the ASE Transit Bus Preventive Maintenance and Inspection (H8) Test practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A transit bus has an EPDM accessory belt with no visible cracks. The technician must determine whether the ribs have worn significantly. Which inspection provides the best evidence?

   1. A.Measure rib material loss with a suitable belt wear gauge.Correct answer: A
   2. B.Count transverse cracks across a measured length of belt.
   3. C.Measure belt tension across the longest unsupported span.
   4. D.Check pulley alignment across the accessory drive faces.

   Explanation: The source states, "A far better indicator of wear on EPDM belts is material loss." An uncracked EPDM belt may still have substantial rib wear. The gauge evaluates that wear; crack counting, tension measurement and alignment checks evaluate different conditions.

   Reference: Gates Belt Inspection Changes, TT002-15 — p. 1, Belt Inspection Changes

2. 2During inspection of a foot-brake valve actuator, which condition of the plunger or its bore requires correction?

   1. A.Uniform discoloration on an otherwise smooth sliding surface.
   2. B.A clean, smooth sliding surface with its specified lubricant.
   3. C.An intact sealing surface with no visible roughness.
   4. D.Pitting or roughness on the plunger's sliding surface.Correct answer: D

   Explanation: The source states, "If pitting or roughness exists, replace damaged parts with new ones." The service instruction distinguishes permissible discoloration from pitting or roughness that requires replacement of damaged parts.

   Reference: Shuttle Bus Chassis Maintenance Manual — §42–10, Foot Brake Valve Actuator Lubricating

3. 3A charged 12-volt starting battery is rated at 1000 CCA. The specified load-test procedure calls for one-half of the CCA rating. What load should the technician apply?

   1. A.250 A
   2. B.500 ACorrect answer: B
   3. C.1000 A
   4. D.1500 A

   Explanation: The source states, "Apply test load of 1\2 CCA rating" The required load is 1000 A × 1/2 = 500 A. The 250 A result divides by four, 1000 A uses the full rating, and 1500 A adds half instead of taking half.

   Reference: Delco Remy Diagnostic Procedures Manual — §3–2, Test Procedure

4. 4An automatic slack adjuster repeatedly needs manual adjustment to bring pushrod stroke back within limits. What is the appropriate maintenance response?

   1. A.Increase the frequency of manual slack readjustment.
   2. B.Renew the brake friction linings at the affected wheel.
   3. C.Investigate foundation-brake or adjuster defects and repair the cause.Correct answer: C
   4. D.Lubricate the automatic slack adjuster at its fitting.

   Explanation: The source states, "Before adjusting an automatic slack adjuster, troubleshoot the foundation brake system" The source requires troubleshooting before adjustment. Manual readjustment, lining service and lubrication are real brake-service operations, but the observed repeated loss of adjustment requires identifying the cause rather than selecting an unproven repair.

   Reference: Shuttle Bus Chassis Maintenance Manual — §42–19, Brake Inspection

5. 5A bus belt drive slips when wet. Inspection shows substantial rib material loss and very little clearance between the belt and pulley. What explains the wet-weather slipping?

   1. A.The reduced clearance prevents the tensioner spring from moving.
   2. B.The reduced clearance makes the belt ride on the pulley flanges.
   3. C.The reduced clearance prevents water from escaping the contact area.Correct answer: C
   4. D.The reduced clearance causes the idler bearing to lose its lubricant.

   Explanation: The source states, "When water cannot channel out between the belt and pulley, hydroplaning (like a tire on a wet road) can result." Loss of drainage clearance permits hydroplaning. It does not establish a seized tensioner, flange tracking or loss of bearing lubricant.

   Reference: Gates Belt Inspection Changes, TT002-15 — p. 1, Belt Inspection Changes

6. 6A dashboard gauge completes its self-test sweep, but at steady conditions it differs from a calibrated reference for the same quantity. Which inspection criterion has failed?

   1. A.Indicated-value accuracy.Correct answer: A
   2. B.Full-scale pointer travel.
   3. C.Switch-on response.
   4. D.Backlight uniformity.

   Explanation: The source states, "Inspect all gauges for operation as well as accuracy." A successful sweep demonstrates response/travel, not accuracy. The disagreement with the reference identifies the accuracy criterion; no backlight fault is stated.

   Reference: FDOT Preventative Maintenance Guide — p. 17, Table 3, Section 2

7. 7A conventional battery has electrolyte covering all plates. Its six temperature-corrected specific-gravity readings are closely grouped at about 1.190. The procedure requires at least 1.230 before load testing and allows a cell spread up to 0.050. What should be done next?

   1. A.Replace the battery with the specified equivalent.
   2. B.Proceed with the specified load test.
   3. C.Recharge the battery and repeat the required checks.Correct answer: C
   4. D.Add water to each cell before repeating the readings.

   Explanation: The source states, "If readings show less than 0.050 difference but one or more cells read less than 1.230, recharge battery." The low, closely grouped readings call for recharge rather than automatic replacement. The charge criterion has not been met for the load test, and the plates are already covered, so adding water is not the needed step.

   Reference: Delco Remy Diagnostic Procedures Manual — §3–5, Test Procedure

8. 8A technician is performing the specified parking-brake holding check in a clear, safe area with system air pressure at cutout. Which transmission selection is used for the gentle attempt to move forward?

   1. A.Neutral.
   2. B.The highest forward gear.
   3. C.The lowest forward gear.Correct answer: C
   4. D.Reverse.

   Explanation: The source states, "Put the vehicle in the lowest gear and gently attempt to move it forward." The specified check uses the lowest gear for a gentle forward attempt; neutral cannot apply forward drive, and the other selections do not match that test.

   Reference: Shuttle Bus Chassis Maintenance Manual — §42–19, Parking Brake Operational Check

9. 9During the first walk-around of a parked bus, a technician finds a fresh puddle of engine oil. The engine has not been started. What should the technician do next?

   1. A.Warm the engine to stabilize oil temperature before assessing the leak.
   2. B.Identify and assess the leak before starting or moving the bus.Correct answer: B
   3. C.Drive the bus onto the lift before tracing the source of the leak.
   4. D.Complete the road test before comparing the oil level with the marks.

   Explanation: The source states, "If a leak is noticed, further inspect accordingly to prevent damage upon start up." The observed leak must be assessed before startup; warming, repositioning under power or road testing first could expose the engine to damage.

   Reference: FDOT Preventative Maintenance Guide — p. 15, Table 3, Section 1

10. 10A removed fan-selector switch is isolated from vehicle power. The technician wants to check whether its selected contact pair conducts without a break. Which multimeter function is appropriate?

    1. A.DC voltage (V).
    2. B.DC current (A).
    3. C.Frequency (Hz).
    4. D.Continuity/resistance (Ω).Correct answer: D

    Explanation: The source states, "Turn the dial to Ω, then press the continuity button" A continuity/resistance check evaluates the isolated contact path. Voltage, current and frequency functions measure different electrical quantities and do not perform this de-energized continuity check.

    Reference: Fluke Automotive Continuity Checks with a Multimeter — Step 2, Set the Meter to Continuity Mode