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.
12. A transformer can be checked for shorted turns using a __ a) VOM set to measure resistance b) VOM set to measure current c) TTR tester d) megger
A GFCI opens a circuit when it detects an improperly grounded receptacle different currents in the conductors of a circuit insulation failure in a conductor large amounts of current in a conductor
When the saw blade starts to bind you should Stop the saw and restart the cut Hold the saw tighter and finish the cut Lift the saw out of the cut Push harder
A __ is the hub of a structured wiring system and is usually located in the basement or garage. It is sometimes called a "distribution center." sub-panel field enclosure service center hub center
Because a kick -back could occur, do not stand directly in front of or behind the machine while it is being used. True False
Question 8 (1 point) Knot efficiency tends to be greater for ropes made of __ a Nylon b Polyester Manila d All of the above
Which stage in the laser printer imaging process involves the application of a uniform negative charge to the imaging drum? Transferring Stage Exposing Stage Charging Stage Developing Stage I want to review this question later. (Optional) Check my answer (Optional)
For a None pump handle detection configuration, which timer would end a transaction? No Fuel Timer End Fuel Timer Pump Finish Timer No Hose Timer
What needs to be done at the FMU if the display reads "Turn Pump Handle On?" Change the divide ratio Power reset the FMU Change pump handle detection to End Only Perform a counts test
When power is lost due to an unforeseen circumstance, a(n) __ detects the outage and automatically switches the power sources from normal to battery backup. Inverter Breaker Uninterruptible power supply Automatic Transfer Switch
