Technician A states that welding shielding gasses can displace air so adequate ventilation is necessary for your safety. Technician B states that shielding gasses are used to dissipate toxic gasses to ensure the welder's breathing zone is clear of toxic gases given off during the welding process. Who is correct? Technician A only Technician B only Both Technicians Neither Technician A nor Technician B
Which of the following does not commonly cause a cold lap? Too large a puddle Wrong travel speed Wrong wire speed All of the above can cause a cold lap
Technician A states that the deposition rate is the actual amount of weld metal deposited per unit of time. Technician B states that deposition rate is normally measured in pounds per hour. Who is correct? Technician A Technician B Both Technicians Neither Technician A nor Technician B
Which of the following manual controls are used by welders for semi-automatic MIG welding operation? Travel Speed Gun positioning Guidance All of the above are used in semiautomatic MIG welding operation
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
Engineers, architects, and others who engage in design to solve practical problems use: Mathematical applications and intuition Scientific knowledge and parental advice Intuition and parental advice Scientific knowledge and mathematical applications
What does the emergency shut-off switch do? Select an answer. Shuts down all the dispensers. Stops the tank truck from over-filling the underground tank. Shuts down the tank monitor. Sounds an alarm.
Which process melts an ore to separate useful metals from the rest of the elements in the ore? smelting mining prospecting alloys
Which type of mine may be used to remove coal from a coal seam deep underground? open pit mine strip mine subsurface mine underwater mine
(1) How do self-driving cars travel safely on the streets? Sensors and cameras help self-driving cars $\square $ and $\square $ on the road.
An all wheel drive vehicle increases traction and allows the driver to better manage the vehicle in inclement weather. True False
Which is a likely reason a jacket might contain interfacing? to help it keep its shape to avoid the need for dry cleaning to make the garment easier to construct to absorb odors
The biggest maintenance problem in pneumatic systems is __ Rusted components Noisy components Overheating Air leakage
Never stand directly behind the saw blade. True False
Q7: On right side pistons the arrow on the top of the piston and the dimple on the rod __ and on left side pistons the arrow on the top of the piston and the dimple on the rod __ A. are on opposite sides / are on the same side B. face the outside of the engine/ face the inside of the engine C. face the same direction/ are on opposite sides D. face the inside of the engine/ face the outside of the engine
Technician A says that if the vehicle battery is below 12.4 volts when testing with a voltmeter it should be charged with a smart battery charger . Technician B says that correct tire readings ; are listed on a placard on the driver's side door frame. Who is correct? A) Technician A only B) Technician B only C) Both Technician A and B D) Neither Technician A nor B
The recommended tire air pressure can typically be found: In the owner's manual On a placard typically located on the driver's doorjamb On the side of the tire Both A and B
