AURTTA022 Develop and apply mechanical system modifications
Answers:
Ans:1) 1. Safety gloves.
2 Safety shoes
3 Safety glasses
4 overall
5 Ear protection.
Ans:2) Make sure to not wear any metal jewelry when working on high voltage
ignition system as it is good Conductor of electricity and can cause injury, wear
insulated gloves.
Ans:3) True
Ans:4) True
Ans:5) False
Ans:6) False
Ans:7) Both “A socket and ratchet” and “A box (ring) end wrench”
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Ans:8) Take information from customer for what purpose they are getting their
vehicle modifies like how they are going to drive it normal driving, on track, off
road.
Ans:9) True
Ans:10) All these answers are correct.
Ans:11) When the replacement engine is larger in power output than an engine
offered by the vehicle manufacturer as standard or optional equipment the
vehicle must be equipped with any necessary upgrading of equipment front
suspension etc.
Ans:12) 1. The extractions must not foul any parts of steering, suspension,
braking.
2. The vehicle must have 100mm ground clearance.
3. The exhaust outlet, if to the rear of the vehicle must discharge at not more than
10 degrees above or 45 degrees below the horizontal.
4. Catalytic converters and exhaust sensors that have been replaced are to be
positioned in the same exhaust flow location as in the original system.
5. The exhaust outlet exit must be behind the lost door or window opening on the
side or rear of the vehicle. 6 The exhaust outlet must be behind the lost door or
outer edge of the vehicle, but not outside or underneath the vehicle.
Ans:13) If there is a same model vehicle produced by manufacturer with manual
transmission it can be changed without Certification
Ans:14) All these answers are correct
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Ans:15) It utilizes an exhaust-driven turbine wheel.
Ans:16) Check answer with your trainer
Ans:17) Wastegate
Ans:18) Superchargers must overcome inertia and spin up to speed as the flow of
exhaust gas increases
Ans:19) Limit boost to prevent engine damage.
Ans: 20) True
Ans:21) Engine speed
Ans:22) True
Ans: 23) All these answers are correct.
Ans:24) 1. Reduced ride comfort
2. Uneven or accelerated tire wear
3. potential rubbing on parts or tires.
Ans:25) True
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Ans:26) Check answer with your Trainer
Ans:27) 1. Compressor test: Will tell you how much pressure each cylinder will
hold when operating, compare the result with manufactures specification
2. Leak down test: Can we used to find the source of a leak by identifying where
air that is pushed into the cylinder is coming out. Each cylinder is tested by
pushing air into the spark plug hole when the cylinder is top dead center (TDC) so
all the volves are fully closed. If air squeezing past the rings and coming out of the
PCU valve? Then the rings are bad, if the air is coming out of exhaust, there
something wrong with the seal of the exhaust valve, if the air coming out of
intake, there something wrong with the seal of intake valve.
Ans:28) 1. Torque
2. Power state of tune
Ans:29) 1) A job card should be completed correctly because it shows the progress
of production.
2) It shows the status of each of the operation defined in the work order.
3) The time taken to do a job can be recorded and defined in a job card.
4) When the operation is completed, there might be some scrap produced and it
is also mentioned in the job card.
Ans:30) To follow correct procedure so every part is fitted correctly.
Ans: 31) 37/00 exhaust emission for heavy vehicles.
79/01 emission control for light vehicles.
70/00 exhaust emission control for diesel engine vehicles.
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Ans:32) The applications for approval type with regard to exhaust emission,
crankcase emissions, evaporative emissions and durability of pollution control
devices, as well as to its on-board diagnostic (ORD) system shall be submitted by
the vehicle manufacturer or by his authorized representation.
Ans:33) OBD systems must be designed, constructed and installed in a vehicle so
as to enable it to identify types of malfunctions over the entire life of the engine.
In achieving this objective, the approval authority must accept that engine which
have been used in excess of the appropriate durability period defined in
section3.2.1.8 show deterioration in OBD system performance such that the OBD
thresholds may exceeded before the OBD system signals a failure to the driver of
vehicles.
Ans:34) The OBD system must monitor for complete removal of a catalyst, where
fitted in a separate housing, that may not be part of a den ox system or particulate
filter, reduction in efficiency of the den ox system, reduction in efficiency of
particulate filter.
Ans:35) The minimum ground clearance for an exhaust system is 100mm.
Ans:36) Fitting a replacement new, used or reconditioned engine, fitting a
manufacturer optional engine together with any Associated components as
supplied by the manufacturer for that some model vehicle, fitting replacement
original its engine and exhaust components, fitting replacement or influence on
engine performance or emissions and fitting equivalent engines with an increase
of up to 20% of original power. In all of the above cases, if the engine is modified,
must be certified under the relevant code of the section CA.
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