ASE Auto Maintenance and Light Repair Multiple Choice Practice Test

Question 1 of 3
54% Get this Question Right
An engine is losing coolant, yet has no external leaks. Technician Y says to run the engine and see if there is white smoke out of the exhaust. Technician Z says to find out if the engine's emission system uses a catalytic converter before running the test above. Who is right?
Both
Tech Y
Tech Z
Neither