Engineering

Technician A states that the basic function of shielding gasses is hold the atmosphere in contact with the metal to more easily help in the formation of oxides and nitrides to reduce weld deficiencies. Technician B states that Argon and Helium are common inert gasses used as shielding gasses. Who is correct? Technician A only Technician B only Both Technicians Neither Technician A nor Technician B

Which of the following does not affect deposition rate? Weld size Weld joint design Physical limitations of the welder to retain control of the weld puddle as travel speed in increased All of the above factors affect deposition rate

What is the BEST way to weatherproof roof penetrations when installing a rooftop solar array racking system? Use sealant and flashing Use stainless stee hardware and sealant Use stainless steel hardware and flashing Use stainless steel hardware

Line-voltage thermostats in residential applications will be damaged if connected to 120 Vac or 240 Vac. True False

What is the minimum Cat rating you need your digital multimeter (DMM)to be rated to work on a hybrid? Select one: a. Cat I b. Cat II c. Cat III d. Cat IV

A single wiring diagram of the whole vehicle would be very difficult to read Select one: True False

Technician A says that a wastegate is designed to direct waste gases to the intake manifold. Technician B says that a blow-off valve allows excess boost pressure to "blow off" into the atmosphere. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Technician A says that leaking ductwork can cause a false air situation.Technician B says that leak testing with smoke is the preferred method to diagnose leaks in the induction system. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Technician A says that engine output can be improved by increasing the amount of the air-fuel mixture that is burned in the cylinder. Technician B says that increasing the amount of the air -fuel mixture reduces volumetric efficiency. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Technician A says that when using propane to identify a leak, the engine idle will smooth out when a leaking area has been identified. Technician B says that when using propane to identify a leak, the engine idle will increase. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B