Excessive vacuum readings - Study guides, Class notes & Summaries

ENGINE REPAIR MICHIGAN MECHANIC STUDY GUIDE RATED A+ WHICH OF THE FOLLOWING IS TRUE ABOUT ADJUSTING VALVE TAPPET CLEARANCE A. THE VALVE TAPPET CLEARENCE ON A HIGH MILEAGE EGINE SHOULD BE ADJUSTED TIGHTER THAN SPECIFICATIONS FOR A NEWLY REBUILT ENGINE. B. VALVE TAPPET CLEARANCE SHOULD BE ADJUSTED AT TDC AT THE END OF THE COMPRESSION STROKE. (CORRECT AWNSER) C. VALVE TAPPET CLEARANCE SHOULD BE ADJUSTED AT BDC AT THE END OF THE EXHAUST STROKE. D. NONE OF THE ABOVE. (NOT CORRECT AWNS...

Z-51 Written Exam Questions and Complete Solutions In a steam turbine, what is the function of a Kingsbury thrust bearing? A) Maintain first stage steam pressure. B) Compensate for coupling misalignment. C) Adjust shaft torque at start up. D) Maintain axial positioning of the rotor shaft. - Answer: D) Maintain axial positioning of the rotor shaft. The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature is A) partial pressure....

COF P-98 PRACTISE EXAM / 100 QUESTIONS AND VERIFIED ANSWERS 2023/2024 / ALL CORRECT. COF P-98 Practice test 2023 1. The person supervising the Fuel-Oil transfer in the building from one floor to another must hold what type of certificate of fitness: P-98 Certificate of Fitness 2. In designing the fuel-Oil transfer system, such as diesel #2 oil from the lowest floor to the floor above the tank level, the following factors must be considered:: - Maximum inlet suction an flow-rate - Desi...

ASE A1 Test Prep – Engine Repair - Questions, Answers and Explanations Technician A says that a defective harmonic balancer can cause inaccurate ignition timing readings. Technician B says that a defective harmonic balancer can cause a broken crankshaft. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B Both technicians are right. The outer ring on a defective harmonic balancer can slip, causing inaccurate ignition timing readings. A broken crankshaft c...

Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - - Correct answer-recovery and recycling. Refrigerant that is recovered can be returned to: - - Correct answer-the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed...

P-98 / Supervise Fuel-Oil Transfer in Buildings Exam Combined Set Tests Questions & Revised Correct Answers The___________removes most contaminants from the oil before the oil reaches the burner's strainer - ANSWER : Oil filter The suction line has to be at least ______ inches from the bottom of the tank for sediments not to be absorbed. - ANSWER : 6 Excessive vacuum readings indicate that there is an obstruction in the suction line (such as dirty oil strainer). - ANSWER : T...

Wet compression test If a piston ring is leaking, this type of test will indicate some compression. If a valve is burned, this type of test will make no difference and indicate the same readings Blue Smoke this means the engine is burning oil. Could be caused by worn piston rings White Exhaust Smoke caused by coolant leaking into one or more cylinders, such as when a head gasket goes bad Worn valve guides and vacuum readings this condition would cause the vacuum gauge ne...

ASE A1- Engine Repair Test A compression test shows that one cylinder is too low. A leakage test on that cylinder shows that there is excessive leakage. During the test, air could be heard coming from the tailpipe. Which of the following could be the cause? A. Broken piston rings B. Bad head gasket C. Bad exhaust gasket D. An exhaust valve not seating - The correct answer is D. If an exhaust valve is not seating, air will leak from the combustion chamber by way of the valve out to the ...

ASE-A8 Engine performance Latest 20023 Already Passed If the compression is 5 psi and the oem spec is 140 psi, what most likely is the cause? A, worn piston ring. B, burnt valve. Both A and B 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. A What most likely is the cause if the compression goes up during a wet compression test? A, burnt valve. B, worn piston ring. B 2. Blue smoke is coming from the exhaust...

COF P98 EXAM 2023