Jaygracey

ASE Diesel Practice Test Questions with Correct Answers 2024. 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 t...

Diesel Tech Suspension and Steering ASE Practice Test 2 Questions with Correct Answers. The most common type of power steering hydraulic pump used on most Class 8 trucks/tractors equipped with power steering systems is: A. Gear B. Vane C. Plunger D. Centrifugal - Correct answer-B. Vane Technician A says to inflate mounted tires in a safety cage or using a portable lock ring guard. Technician B says to first mount the tire on the truck, then inflate to the proper tire pressure. A. A on...

Elaborate ASE Study Guide Questions with Answers Latest Update 2025. What bands does the Radar Warning System work and what do they detect? What do they indicate? - Correct answer-E-J & K - Search, track, fire control radars & gives presence/direction C & D - missile guidance & presence only What bands does the blade antenna detect? - Correct answer-C and D What does the threat symbology of "4" mean? - Correct answer-Long range SAM What does the threat symbology of "6"...

ASE-A8 Engine performance Study Guide Questions with Correct Answers . 1. What does a wet compression test, test for? - Correct answer-Burned valve would show no change in compression. A leaking/worn piston would have some change in compression. What most likely is the cause if the compression doesn't go up during a wet compression test? A, burnt valve. B, worn piston ring. - Correct answer-A What most likely is the cause if the compression goes up during a wet compression t...

ASE HVAC Exam Practice Questions with Correct Answers. What would be the most likely result of a missing AC compressor clutch diode? - Correct answer-Damage to the ECM Tech A says that the service fittings for R-134a are the same as the service fittings for R-12. Tech B says the low-side service fitting is a 16mm quick-connect and high-side is 13mm quick-connect. Who is right? - Correct answer-Neither An inoperative cable-controlled heater control valve is being diagnosed. The control m...

L1 Practice Exam (Computerized Powertrain Controls Diagnosis) Questions with Accurate Answers. 18. An engine lacks power and there are no stored diagnostic trouble codes. Which of the following scan tool readings, at 2,000 RPM, is the MOST likely one to be the cause? a. AFRS (Air/Fuel Ratio Sensor) 2/1 = 2.5 Volts b. MAF (Mass Air Flow) = 2.0 gm/sec/.70 volts c. Injector pulse width = 3.3 ms d. MAP (Manifold Absolute Pressure) = 81 kPa/6 in.Hg/3.5 volts - Correct answer--MAF (Mass Ai...

L1 Practice Exam (General Powertrain Diagnosis) Questions With Accurate Answers. 1. Two technicians are discussing how to locate relevant service information. Technician A says paper service manuals are still the best resource for service information. Technician B says to follow the recommended service procedures contained in the on-line service information. Who is right? A) Tech A B) Tech B C) Both A and B D) Neither - Correct answer-Technician B is right because all OEM (original eq...

L1 Practice Exam (Ignition Systems Diagnosis) Questions With Accurate Answers. 37. A technician is diagnosing an engine misfire with active and stored DTC (Diagnostic Trouble Code) P0302. The number 2 cylinder spark plug was discovered to be worn and white in color while the other plugs were slightly worn and normal color. Which of the following is the MOST likely cause? a. Vacuum leak b. Loose spark plug c. Defective fuel pressure regulator d. Partially stuck open EGR valve - Corr...

ASE L1 Engine Performance Study Guide Questions with Correct Answers. Air fuel ratio (Very rich) 10.1 at all speeds ———- Idle Off idle Cruise HC 250ppm 275ppm 300ppm CO 3%. 3%. 3% CO2 7 to 9 all down O2 .2% all down What can the possible cause be ? A. Leaking injector B. High Map sensor voltage (low pressure reading) (vacuum leak) C. Stuck open thermostat D. All the above - Correct answer-D Air fuel ratio (Rich) 10.1 to 12.1 at low speed ————Idl...

Well Defined ASE Certification Study Guide Questions With Correct Answers. Spark plugs are being replaced on a v6 engine. Which of the following should be performed before removing the boot? - Correct answer-Twist the boot 1/2 a turn Technician A days that a positive crankcase ventilation (pvc) system reduces vehicle emissions. Tech B says that a pvc system helps increase crankcase pressure. Who is correct? - Correct answer-Tech A Tech A says that secondary ignition wires should be in...