Paul Marks Library

ENGINE REPAIR MICHIGAN MECHANIC STUDY GUIDE| Questions and correct answers| 100% Pass| Latest 2026 WHICH OF THE FOLLOWING IS TRUE ABOUT ADJUSTING VALVE TAPPET CLEARANCE B. VALVE TAPPET CLEARANCE SHOULD BE ADJUSTED AT TDC AT THE END OF THE COMPRESSION STROKE. (CORRECT AWNSER) THE HYDRAULIC LIFTERS ARE NOISY AT HIGHWAY SPEEDS BUT QUIET AT LOW SPEEDS. WHAT SHOULD YOU DO FIRST AS YOU DIAGNOSE THIS PROBLEM? B. CHECK CRANKCASE OIL LEVEL. (CORRECT AWNSER) THE VALVE TIMING ON MOST ENGINES IS CONTRO...

SOS Mechanic Certificate – Electrical Exam with correct answers| Latest 2026 After installing a new battery how long should you wait to allow for pcm time no need to wait As blower motor speed decreases the voltage drop across the resistance block.... increases What should you do first when replacing junction block or fuse? Unlock the battery ground cable The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor is.... a commutator When performing ...

Michigan SOS Brakes Mechanic Certification Practice Test| answered 100% correctly| Latest 2026 Warped brake rotors A likely cause of the brake pedal slowly going to the floor when normal braking pressure is applied. Contaminated brake fluid A possible reason for the brake pedal slowly going to the floor under normal braking pressure. Internal leak in the master cylinder A common cause for the brake pedal going to the floor when normal braking pressure is applied. Faulty brake booster A p...

Michigan Mechanic Certification- HVAC Exam and correct answers| New 2026 Cooling system leak diagnosis Pressure test or dye test Purpose of a radiator The purpose of the radiator is to dissipate heat that is picked up by coolant in the engine into the air passing through its fins and tubes Symptoms of low coolant Engine overheating and no heat from the HVAC system Purpose of the thermostat The purpose of the thermostat is to trap the coolant in the engine until it reaches it operating te...

HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE Questions and correct answers 2026 AN ENGINE BRAKE (JACOBS BRAKE) A. IS A SELF-ENERGIZING SERVO TYPE. B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) B. A SA...

SOS brake & braking system exam and correct answers 2026 In a single anchor bendix drum type rear brake the secondary lining is longer than the primary Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is: smaller and goes toward the front of the car During a brake overhaul, you notice that the brake fluid seems to be very dirty and dark in color. What should you do? flush the system before the new parts are installed In order to bleed the system on ...

Michigan Mechanic License Practice test – CRM| Questions and correct answers| New What adjustment is to be made after a tie rod end is replaced? a) Toe b) Caster c) Camber d) No adjustment needed a) Toe An Air Conditioning system should not be left open to the atmosphere for extended periods because? a) Once opened to the atmosphere it cannot be resealed b) it is almost impossible to purge air from the evaporator c) Air will damage the reed values in the compressor d) moisture ...

SOS Mechanic Certification- Suspension & steering Exam| Questions and correct answers| New 2026 Bleeding a power steering unit is generally done by turning the steering wheel left and right repeatedly After rounding a turn, the front wheels do not return to the straight ahead position in a normal way. What adjustment is most likely to be out of specifications? Caster "Toe" adjustment on front wheel drive vehicles is made by: changing he length of the steering linkage When performing...

Michigan State Brakes Certification Exam questions and correct answers 2026 Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive wheel? Sealed non-serviceable to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm You are installing a set of brake shoe linings that are not the same length. Tradition...

STATE BRAKE CERTIFICATION Exam questions and correct answers| New 2026 A cracked or torn vacuum diaphragm in a brake power booster would most likely cause: a hard pedal feel requiring very high pedal effort to stop to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm A mechanic finds gear lube inside both rear drums on a rear wheel d...