SMOG INSPECTOR LEVEL 1 UPDATED FINAL EXAM
QUESTIONS AND SOLUTIONS RATED A+
✔✔During the functional inspection of a smog check inspection on a 1992 gasoline
vehicle the smog inspector needs to check the ignition timing. According to the
underhood label the timing specifications is 10 degrees before top dead center (BTDC)
at 750 RPM. Each of these results below would Pass, except
a. 10 degrees ATDC at 750 RPM
b. 12 degrees BTDC at 800 RPM
c. 8 degrees BTDC at 700 RPM
d. 9 degrees BTDC at 675 RPM - ✔✔10 degrees ATDC at 750 RPM
✔✔An AIR system (pump style) has the ability to change where the air from the pump is
delivered to. The device for routing the air is called a?
a. check valve
b. diaphragm valve
c. diverter valve
d. reed valve - ✔✔diverter valve
✔✔What is the proper sequence for the four stroke of the internal combustion engine?
a. power, compression, exhaust & intake
b. intake, exhaust, power & compression
c. compression, intake, power & exhaust
d. intake, compression, power & exhaust - ✔✔intake, compression, power and exhaust
✔✔Of the four strokes of an internal combustion engine the ignition typically fires during
the power stroke, true or false - ✔✔false, it fires on the compression stroke
✔✔During the visual portion of an OBD II smog check inspection the smog check
inspector sees an aftermarket catalytic converter installed. How should he or she
proceed?
a. fail the vehicle as modified under catalytic converter
b. pass the vehicle because the catalytic converter is there
c. research the new catalytic converter and proceed accordingly
d. abort the test and refer the customer to the referee - ✔✔research the new catalytic
converter and proceed accordingly
✔✔What emission(s) does a TWC reduce?
a. H/C, CO & Nitrogen
b. H/C, CO & H2O
c. H/C, CO & CO2
d. H/C, CO & NOx - ✔✔HC, CO and NOx
, ✔✔What portion(s) of a smog check inspection are performed with the engine
Running/Ready mode on a hybrid vehicle?
a. visible smoke checks (idle tail pipe & BAR snap test)
b. liquid fuel leak check
c. ignition timing check
d. all of the above - ✔✔liquid fuel leak check
✔✔What emission(s) would a vehicle most likely fail for due to a lack of flow in the
cooling system (radiator)?
a. NOx
b. H/C
c. CO
d. all of the above - ✔✔NOx
✔✔During a smog check inspection on a 1999 Ford F250 Diesel truck the smog check
inspector sees the GVWR on the drivers door label as 14,050 lbs. How should he or she
proceed?
a. test the vehicle on OIS as its Diesel vehicle
b. refuse the vehicle as it doesn't need to be tested
c. test the vehicle on EIS as it's a Diesel vehicle
d. refer the customer to the dealership for testing - ✔✔refuse the vehicle as it doesnt
need to be tested
✔✔Diesel powered vehicle require smog check inspections biannually after their
purchase date, true or false? - ✔✔true
✔✔Rotary powered vehicles require smog check inspections bi-annually (every two
years) after their purchase date, true of false - ✔✔false, they fall under the 8 year rule
✔✔A vehicle has no underhood label, after looking up the vehicle in the ECS guide it is
determined that both Federal and California vehicles have the same emissions
equipment, how should the smog check inspector proceed?
a. enter the vehicle as a Federal vehicle
b. look for a BAR referee label
c. enter the vehicle as a California vehicle
d. fail the vehicle under the Other Emissions Category - ✔✔enter the vehicle as a
California vehicle
✔✔When a gas cap is not present on a vehicle that is supposed to have one, how
would the smog inspector enter this into the EIS machine?
a. fail for EVAP
b. missing for EVAP
c. Pass for EVAP
d. Modified for EVAP - ✔✔missing for evap
QUESTIONS AND SOLUTIONS RATED A+
✔✔During the functional inspection of a smog check inspection on a 1992 gasoline
vehicle the smog inspector needs to check the ignition timing. According to the
underhood label the timing specifications is 10 degrees before top dead center (BTDC)
at 750 RPM. Each of these results below would Pass, except
a. 10 degrees ATDC at 750 RPM
b. 12 degrees BTDC at 800 RPM
c. 8 degrees BTDC at 700 RPM
d. 9 degrees BTDC at 675 RPM - ✔✔10 degrees ATDC at 750 RPM
✔✔An AIR system (pump style) has the ability to change where the air from the pump is
delivered to. The device for routing the air is called a?
a. check valve
b. diaphragm valve
c. diverter valve
d. reed valve - ✔✔diverter valve
✔✔What is the proper sequence for the four stroke of the internal combustion engine?
a. power, compression, exhaust & intake
b. intake, exhaust, power & compression
c. compression, intake, power & exhaust
d. intake, compression, power & exhaust - ✔✔intake, compression, power and exhaust
✔✔Of the four strokes of an internal combustion engine the ignition typically fires during
the power stroke, true or false - ✔✔false, it fires on the compression stroke
✔✔During the visual portion of an OBD II smog check inspection the smog check
inspector sees an aftermarket catalytic converter installed. How should he or she
proceed?
a. fail the vehicle as modified under catalytic converter
b. pass the vehicle because the catalytic converter is there
c. research the new catalytic converter and proceed accordingly
d. abort the test and refer the customer to the referee - ✔✔research the new catalytic
converter and proceed accordingly
✔✔What emission(s) does a TWC reduce?
a. H/C, CO & Nitrogen
b. H/C, CO & H2O
c. H/C, CO & CO2
d. H/C, CO & NOx - ✔✔HC, CO and NOx
, ✔✔What portion(s) of a smog check inspection are performed with the engine
Running/Ready mode on a hybrid vehicle?
a. visible smoke checks (idle tail pipe & BAR snap test)
b. liquid fuel leak check
c. ignition timing check
d. all of the above - ✔✔liquid fuel leak check
✔✔What emission(s) would a vehicle most likely fail for due to a lack of flow in the
cooling system (radiator)?
a. NOx
b. H/C
c. CO
d. all of the above - ✔✔NOx
✔✔During a smog check inspection on a 1999 Ford F250 Diesel truck the smog check
inspector sees the GVWR on the drivers door label as 14,050 lbs. How should he or she
proceed?
a. test the vehicle on OIS as its Diesel vehicle
b. refuse the vehicle as it doesn't need to be tested
c. test the vehicle on EIS as it's a Diesel vehicle
d. refer the customer to the dealership for testing - ✔✔refuse the vehicle as it doesnt
need to be tested
✔✔Diesel powered vehicle require smog check inspections biannually after their
purchase date, true or false? - ✔✔true
✔✔Rotary powered vehicles require smog check inspections bi-annually (every two
years) after their purchase date, true of false - ✔✔false, they fall under the 8 year rule
✔✔A vehicle has no underhood label, after looking up the vehicle in the ECS guide it is
determined that both Federal and California vehicles have the same emissions
equipment, how should the smog check inspector proceed?
a. enter the vehicle as a Federal vehicle
b. look for a BAR referee label
c. enter the vehicle as a California vehicle
d. fail the vehicle under the Other Emissions Category - ✔✔enter the vehicle as a
California vehicle
✔✔When a gas cap is not present on a vehicle that is supposed to have one, how
would the smog inspector enter this into the EIS machine?
a. fail for EVAP
b. missing for EVAP
c. Pass for EVAP
d. Modified for EVAP - ✔✔missing for evap
