ASE Certification questions with correct answers

Both b and c - Answer Coolant should be tested for ________. Proper color Freezing point (temperature) Specific Gravity Both b and c Both technician a and b - Answer Two technicians are discussing a compression test. Technician A says that the engine should be cranked over with the pressure gauge installed for "4 puffs." Technician B says that the maximum difference between the highest reading cylinder and the lowest reading cylinder should be 20%. Which technician is correct? Technician A only Technician b only Both Technician A and B Neither technician a nor b Technician B - Answer Technician A says that oil should be squirted into all the cylinders before taking a compression test. Technician B says that if the compression greatly increases when some oil is squirted in the cylinders, it indicates defective or worn piston rings. Technician A Technician B