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The tandem rear axle air suspension ride height rises above normal as the vehicle is unloaded. Which of these could be the cause? (A) A kinked air spring (bag) supply line (B) A leaking height control valve (C) A plugged height control valve exhaust port (D) A leaking pressure protection valve - C The parking brakes fail to apply on a truck with air brakes. Technician A says that low air pressure in the spring brake chamber could be the cause. Technician B says that a ruptured spring brake...

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9 pages

Written in 2024/2025

Grade A+

ACADEMICMATERIALS

ASE Diesel Exam Rated A+ Which of these can cause a no-start condition on a HEUI engine? (A) High fuel pressure (B) Low injection control pressure (C) High boost pressure (D) Low boost pressure - Answer- B A diesel engine is hard to start, but runs good after it has been primed and run for a few minutes. The most likely cause is a: (A) leaking injector line. (B) leaking fuel return line. (C) plugged fuel tank vent. (D) bad transfer pump check valve. - Answer- D A diesel en...

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6 pages

Written in 2025/2026

Grade A+

ScholarExams

ASE Diesel Practice Test | LATEST UPDATED| REAL EXAM COMPLETE QUESTIONS AND ANSWERS | 100% RATED CORRECT | 100% VERFIED | ALREADY GRADED A+

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14 pages

Written in 2025/2026

Grade A+

STUVIAOPTIONS

This document contains a comprehensive set of ASE diesel practice test questions along with the correct answers. It covers essential topics such as diesel engine diagnostics, air and hydraulic brake systems, steering and suspension issues, electrical systems, and more. Ideal for students or professionals preparing for ASE certification exams, this resource helps reinforce technical knowledge with real-world problem-solving scenarios.

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14 pages

Written in 2024/2025

Grade A+

Hosmerit

When a diesel engine is operated under a load, coolant continually comes out of the radiator overflow and there are bubbles in the radiator. Which of these is the most likely cause? (A) Too much coolant in the cooling system (B) A clogged radiator (C) A stuck-open thermostat (D) Compression leakage into the cooling system - Correct Answer-D A diesel engine has excessive black smoke when started in the morning. Which of these could be the cause? (A) A bad fuel injection nozzle (B) A...

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6 pages

Written in 2024/2025

Grade A

AlexScorer

ASE Full Solution Pack Updated 2024,2025 with complete solutions

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24 items

ACADEMICMATERIALS

ASE Diesel Practice Test Questions with Correct Answers

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12 pages

Written in 2023/2024

Grade A+

cracker

ASE EXAM PACKAGE DEAL WITH COMPLETE SOLUTIONS.

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12 items

Brainarium

When a diesel engine is operated under a load, coolant continually comes out of the radiator overflow and there are bubbles in the radiator. Which of these is the most likely cause? (A) Too much coolant in the cooling system (B) A clogged radiator (C) A stuck-open thermostat (D) Compression leakage into the cooling system - Answer-D A diesel engine has excessive black smoke when started in the morning. Which of these could be the cause? (A) A bad fuel injection nozzle (B) A restricted f...

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9 pages

Written in 2023/2024

Grade A+

Brainarium

How is voltage drop measure? A. Across a component with it operating B. Across a component with it not operating C. Both D. Neither - Answer A When measuring voltage drop what does it depend on A. Current B. Resistance C. Amps D. All the above - Answer B In a normal circuit which has the least voltage drop on a circuit A. Switch (relays too) B. Wiring C. Connectors D. All the above - Answer D (A good way to test these is to energize the circuit and check for...

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34 pages

Written in 2023/2024

Grade A+

BillRanker