A diesel truck equipped with a JWAC (Jacket Water Aftercooler) has low power under load. Which of the following could be the cause? A Leaking JWAC (Jacket.

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A diesel truck equipped with a JWAC (Jacket Water Aftercooler) has low power under load. Which of the following could be the cause? A Leaking JWAC (Jacket Water Aftercooler) B Leak in turbocharger inlet piping C Using an off road grade of fuel D Open in EGR sensor circuit > tekhnologic

Tool identification? Which of the following is a Gouge B C D > tekhnologic

A medium duty truck using a HEUI (hydraulically actuated electronically controlled unit injector) fuel system has a misfire code when hot. Technician A says worn HEUI injectors could be the cause. Technician B says a shorted glow plug could be the cause. Who is right? A B only B A only C Both A and B D Neither A or B > tekhnologic

Circuit is in operation The technician gets an infinite ohms reading on the ohmmeter function of the DMM (Digital Multimeter), when measuring resistance in a circuit. Which of the following could be the cause? A Corroded terminal B Circuit is complete C Circuit is open D Circuit is in operation > tekhnologic

Technician A says you do not have to solder a repaired wire Technician A says you do not have to solder a repaired wire. Technician B says wire insulation damage is sometimes found where the wire passes through an opening in a metal part. Who is right? A A and B B A only C Neither A or B D B only > tekhnologic

The engine cranks on a diesel, but will not start The engine cranks on a diesel, but will not start. During diagnosis, the ECM (Electronic Control Module) will not communicate with the diagnostic tool. What is the MOST LIKELY cause? A Low ECM supply voltage B Failed data link connector C High ECM supply voltage D Incorrect diagnostic tool software E No ECM supply voltage F Outdated diagnostic tool software > tekhnologic

Which of the following measuring tools is MOST likely used to measure the temperature of the diesel exhaust gases? A Exhaust pyrometer B Exhaust manometer C Diagnostic scan too D MDI (Multiple Diagnostic Interface) E OBD II & CAN Deluxe Scan Too F Dual – MDI (Multiple Diagnostic Interface) G Tachometer H Contact Infrared Thermometer > tekhnologic