Clean air is composed mostly of
a. oxygen
b. nitrogen
c. ozone
d. argon
e. CO2
b
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Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
The Lexus RX 400h hybrid electric vehicle uses which of the following systems?
A) ETC B) VDIM C) EPS D) All of the above
The two most common pollutant pathways are:
A) Through ventilation ducts and building infiltration. B) Through leaky return air ducts and building infiltration. C) Outside to inside and from one area inside to another area inside. D) From equipment surfaces and through infiltration.
What is commonly wrong when the heat from a heater ''comes and goes''?
A) Cooling system is low on coolant B) A coolant restriction C) A worn water pump drive belt D) Incorrect heater hoses.