SOS Mechanic Certificate Test: Engine Tune-
up/Performance – Questions With Solutions
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Practice questions for this set
Learn 1 /7 Study using Learn
The malfunction indicator lamp turns on
Choose an answer
You are monitoring the tps signed
1 The engine vacuum is low but steady 2
voltage digital volt ohm
If the voltage spike is not high enough
3 on one cylinder, what is the most likely 4 On a OBD 2 system a loose gas cap
source of the problem.
Don't know?
Terms in this set (65)
The engine vacuum is low but steady Retarded Timing
The Purpose of catalytic converter oxidize hc co into c02 and h20
, What vehicles are designed to go into all of the above
a closed loop operation when
Diagram shows a vacuum hose above the throttle plate
connected to "p vacuum" this means
the hose should be connected
If the voltage spike is not high enough a failed spark plug
on one cylinder, what is the most likely
source of the problem.
wide-open-throttle the power train open loop, rich mixtures
control module reverts
during a cylinder leakage test air the intake valve
escaping through the throttle body
means there is a leak at
higher than normal oxides of nitrogen all of the above
(n0x) emissions may be caused by
A reading of 8 volts on meter 2 while an excessive ground circuit voltage drop
cranking would indicate
emission control systems are installed Hydrocarbons, carbon monoxide and oxides of
on engines to reduce what 3 specific nitrogen
exhaust products
You have verified a slow cranking Determine the condition of the battery
complaint, which of the following
should you do next
The Egr System is designed to cruise
You are monitoring the tps signed A smooth voltage increase to about 4.5 v
voltage digital volt ohm
up/Performance – Questions With Solutions
Save
Practice questions for this set
Learn 1 /7 Study using Learn
The malfunction indicator lamp turns on
Choose an answer
You are monitoring the tps signed
1 The engine vacuum is low but steady 2
voltage digital volt ohm
If the voltage spike is not high enough
3 on one cylinder, what is the most likely 4 On a OBD 2 system a loose gas cap
source of the problem.
Don't know?
Terms in this set (65)
The engine vacuum is low but steady Retarded Timing
The Purpose of catalytic converter oxidize hc co into c02 and h20
, What vehicles are designed to go into all of the above
a closed loop operation when
Diagram shows a vacuum hose above the throttle plate
connected to "p vacuum" this means
the hose should be connected
If the voltage spike is not high enough a failed spark plug
on one cylinder, what is the most likely
source of the problem.
wide-open-throttle the power train open loop, rich mixtures
control module reverts
during a cylinder leakage test air the intake valve
escaping through the throttle body
means there is a leak at
higher than normal oxides of nitrogen all of the above
(n0x) emissions may be caused by
A reading of 8 volts on meter 2 while an excessive ground circuit voltage drop
cranking would indicate
emission control systems are installed Hydrocarbons, carbon monoxide and oxides of
on engines to reduce what 3 specific nitrogen
exhaust products
You have verified a slow cranking Determine the condition of the battery
complaint, which of the following
should you do next
The Egr System is designed to cruise
You are monitoring the tps signed A smooth voltage increase to about 4.5 v
voltage digital volt ohm
