Correct answers will be posted at the bottom of the page... DONT CHEAT! (new test will be posted Periodically)
True or false
#1 The upper front main bearing can be worn by a belt that is Adjusted too tight?
#2 The best way to clean an aluminum Engine is to use a Hot caustic tank?
#3 Blue-gray smoke comes from the Exhaust during deceleration due to bad piston rings?
# 4 A stuck open Thermostat can cause an engine to overheat?
#5 As the engine speed increases the mechanical fan clutch speed increases also?
#6 When performing a proper compression test only the spark plug for that cylinder should be removed?
#7 If the Battery open circuit voltage is less than 12.4V you should charge the battery at a fast rate?
#8 Engines with higher compression ratios must use lower octane fuel?
#9 The E.G.R valve when open lets hot exhaust into the intake to raise combustion temp to produce more engine power?
# 10 A tapping noise is heard coming from the upper part of the engine at idle it could be valvetrain problems as well as an exhaust leak?
# 1 True A belt that’s too tight will cause wear to the front upper main bearing
# 2 False caustic will damage aluminum
# 3 False worn rings will make the engine smoke worse under acceleration
#4 False it will not cause the engine to overheat
#5 False the mechanical fan clutch speed increases with engine temp not speed
#6 False all plugs should be removed so the engine will crank more easily
#7 False the battery should be charged at a slow rate
#8 False engines with a compression ratio of 9.3:1 or less can operate safely using 87octane engines with higher compression ratios will use higher octane
#9 False raise combustion temps to reduce smog gases
#10 True a leak at the exhaust manifold can make a tapping sound which can be confused with valve train noise