AUMT 1405 EXAM QUESTIONS AND
ANSWERS 100% CORRECT
The evaporator is located where? - ANSWER-The evaporator is the cooling element,
located under the dash. Generally on passenger side.
How do you measure current with a DMM -digital multi meter? - ANSWER-You have to
put it in series, unplug wires going to switch, plug meter to unplugged switch, and take
the wire and connect to other end of meter and complete circuit.
A vehicle is being jump started from a booster pack. The negative clamp of the booster
should be connected to what? - ANSWER-Negative terminal of the battery
Manifold vacuums develops on which stroke - ANSWER-Intake stroke
A brake bleeding procedure is being performed. When the screw is loosened there is no
flow from the bleeder screw. - ANSWER-Potentially a clogged bleeder valve
In the show brake pedal application is high and hard, but the brake pedal drifts to the
floor when applied for an extended period of time, what could be a cause for that? -
ANSWER-Internal leak in the master cylinder, worn master cylinder.
Both valves are closed on what stroke - ANSWER-Compression and power stroke
Two technicians are discussing the OBD code P0301, technician a says that the P in
the code stands for powertrain, technician B says that the zero in the code means it is
manufacture specific. Who is correct? - ANSWER-Both
Front brake rotors are being machined. Tech a says that the final cut should be made at
the fastest speed possible with the lathe. Tech be says that the least amount of metal
possible should be removed during the machining process. Who is correct? - ANSWER-
Tech B
When jumpstarting a vehicle what is the last connection should make? - ANSWER-The
negative post on dead battery
Temperature gauge and rises above normal operating temperature when the vehicle
was traveling at highway speed's. The temperature appears normal when the vehicle
was stopped in traffic. Tech a says a failed radiator fan could be the cause. Tech b says
a partially clogged radiator could be a cause. Who is correct. - ANSWER-Tech B
, New texts are disgusting PCV systems. Positive crankcase ventilation systems. Tech a
says a stuck open PCV valve could cause excessive oil consumption. Tech b says a
plugged PCV valve could cause oil leakage. Who is correct - ANSWER-Both
A four-cylinder engine is running poorly without any warning, we do a compression test
and on cylinder number one it rates 170 psi, cylinder two reads 20 PSI cylinder three
reads 25 psi, cylinder four 180 psi. Based on those readings what is most likely the
problem with that engine - ANSWER-Blown head gasket, low compression
Which of the following is a function of the engines lubrication system? - ANSWER-
Removes contaminants, lubricates, moved oil everywhere
Tech a says that excessive to toe out or negative toe causes rapid wear on the inside
edge of the tire. Tech be says that excessive positive camber on a front wheel causes
premature wear on the outside edge of the tire. Who is correct - ANSWER-Both
During a pre-alignment inspection, the technician finds that the right rear ride height is
too low. Center ground to center of fender well. What could cause that? - ANSWER-Coil
spring
Tech A says that cooling system pressure is regulated by the pressure relief valve and
the water pump. Tech be says the cooling system pressure is regulated by the radiator
cap. - ANSWER-Tech B
Tech A says the tire should be inflated to the pressure listed on the side wall. Tech B
says the tire should be checked when they are warm. - ANSWER-Both are wrong
The information about a car's tires can be found where? - ANSWER-On the tire
information placard(side wall)
The pinion seal on the rear axle is leaking. What is most likely the cause? - ANSWER-
Clogged rental van
An automatic transmissions fluid has a milky pink color. What is the cause? - ANSWER-
Water contamination
What should I technician do when preparing to check the fluid level on an automatic
transmission that does not have a dipstick? - ANSWER-Run the engine till the
transmission fluid is within the specific temp then check
Took a says that there is a complete path through the electrical circuit, says when there
is a complete path through the electrical circuit the circuit is said to be open. Tech bees
says that when the circuit pack path is broken TV says that the path is said to be closed
- ANSWER-Both are wrong
ANSWERS 100% CORRECT
The evaporator is located where? - ANSWER-The evaporator is the cooling element,
located under the dash. Generally on passenger side.
How do you measure current with a DMM -digital multi meter? - ANSWER-You have to
put it in series, unplug wires going to switch, plug meter to unplugged switch, and take
the wire and connect to other end of meter and complete circuit.
A vehicle is being jump started from a booster pack. The negative clamp of the booster
should be connected to what? - ANSWER-Negative terminal of the battery
Manifold vacuums develops on which stroke - ANSWER-Intake stroke
A brake bleeding procedure is being performed. When the screw is loosened there is no
flow from the bleeder screw. - ANSWER-Potentially a clogged bleeder valve
In the show brake pedal application is high and hard, but the brake pedal drifts to the
floor when applied for an extended period of time, what could be a cause for that? -
ANSWER-Internal leak in the master cylinder, worn master cylinder.
Both valves are closed on what stroke - ANSWER-Compression and power stroke
Two technicians are discussing the OBD code P0301, technician a says that the P in
the code stands for powertrain, technician B says that the zero in the code means it is
manufacture specific. Who is correct? - ANSWER-Both
Front brake rotors are being machined. Tech a says that the final cut should be made at
the fastest speed possible with the lathe. Tech be says that the least amount of metal
possible should be removed during the machining process. Who is correct? - ANSWER-
Tech B
When jumpstarting a vehicle what is the last connection should make? - ANSWER-The
negative post on dead battery
Temperature gauge and rises above normal operating temperature when the vehicle
was traveling at highway speed's. The temperature appears normal when the vehicle
was stopped in traffic. Tech a says a failed radiator fan could be the cause. Tech b says
a partially clogged radiator could be a cause. Who is correct. - ANSWER-Tech B
, New texts are disgusting PCV systems. Positive crankcase ventilation systems. Tech a
says a stuck open PCV valve could cause excessive oil consumption. Tech b says a
plugged PCV valve could cause oil leakage. Who is correct - ANSWER-Both
A four-cylinder engine is running poorly without any warning, we do a compression test
and on cylinder number one it rates 170 psi, cylinder two reads 20 PSI cylinder three
reads 25 psi, cylinder four 180 psi. Based on those readings what is most likely the
problem with that engine - ANSWER-Blown head gasket, low compression
Which of the following is a function of the engines lubrication system? - ANSWER-
Removes contaminants, lubricates, moved oil everywhere
Tech a says that excessive to toe out or negative toe causes rapid wear on the inside
edge of the tire. Tech be says that excessive positive camber on a front wheel causes
premature wear on the outside edge of the tire. Who is correct - ANSWER-Both
During a pre-alignment inspection, the technician finds that the right rear ride height is
too low. Center ground to center of fender well. What could cause that? - ANSWER-Coil
spring
Tech A says that cooling system pressure is regulated by the pressure relief valve and
the water pump. Tech be says the cooling system pressure is regulated by the radiator
cap. - ANSWER-Tech B
Tech A says the tire should be inflated to the pressure listed on the side wall. Tech B
says the tire should be checked when they are warm. - ANSWER-Both are wrong
The information about a car's tires can be found where? - ANSWER-On the tire
information placard(side wall)
The pinion seal on the rear axle is leaking. What is most likely the cause? - ANSWER-
Clogged rental van
An automatic transmissions fluid has a milky pink color. What is the cause? - ANSWER-
Water contamination
What should I technician do when preparing to check the fluid level on an automatic
transmission that does not have a dipstick? - ANSWER-Run the engine till the
transmission fluid is within the specific temp then check
Took a says that there is a complete path through the electrical circuit, says when there
is a complete path through the electrical circuit the circuit is said to be open. Tech bees
says that when the circuit pack path is broken TV says that the path is said to be closed
- ANSWER-Both are wrong
