Welding assessment by Eric

For long-term cutting of materials containing cadmium or mercury, what should always be worn?

• An approved metal fume filter

• An approved HEPA-rated filter

• An approved standard respirator

• An approved supplied-air respirator

Acetylene gas must be withdrawn from a cylinder at an hourly rate that does not exceed _____ of the total volume

• 1/2

• 1/3

• 1/5

• 1/7

Engine generators should be shut down if no welding is to take place for how long?

• 10 minutes

• 15 minutes

• 30 minutes

• 20 minutes

What type of power source is used with the SMAW process?

• Constant Current

• Constant Voltage

• Rising Arc Voltage

• Constant potential

In addition to amperage capacity, what else determines rated output?

• Voltage

• function

• duty cycle

• electrode size

What is true about the period of time a low-hydrogen electrode can be outside a heated oven?

• it is limited to one hour

• it is limited to two hours

• it is defined as exposure time

• it is defined as storage time

How is arc length measured?

• From one end of the electrode to the other

• From the striking area of the ground clamp

• From the end of the electrode core to the base metal

• From the end of the electrode holder to the base metal

What causes arc blow in SMAW welding process?

• Using A/C

• Damaged electrode

• Flux

• Magnetic force

What type of welding current is produced by the transformer machine?

• AC only

• DC only

• CV only

• CC only

What are the 3 benefits of flux coating on a SMAW electrode? Choose the one that DOES NOT belong

• stabilizes the arc

• Protects the weld

• Adds alloying elements

• Enhances the duty cycle