SMAW I SENSE

Of the following, which is not a requirement for the SMAW process?

• electricity

• gas supply

• base metal

• filler metal

Which of the following is an incorrect statement about an E7018 electrode?

• Once opened, it should be kept in an electrode oven.

• The weld deposit has a minimum tensile strength of 70,000 psi.

• They are suitable for flat position and horizontal fillet only

• They are suitable for use in all welding positions.

The distance from the molten tip of the SMAW electrode to the surface of the molten

weld pool should be

• one electrode diameter

• open circuit voltage.

• ignition length.

• arc current

Which one of the following electrodes is not suitable for use in all positions?

• E6010

• E6011

• E7018

• E7024

Which of the following electrodes would you select to produce a weld with shallow

penetration?

• 6010

• 6011

• 6013

• 7018

An engine-driven generator without a rectifier produces what form of welding

current?

• AC only

• dc only

• both ac and dc

• ac and dcep

Which group of electrodes is low hydrogen type?

• E7024, E7027, and E7028

• E6010 and E6011

• E6012, E6013, and E7014

• E7015, E7016 and E7018

“Arc blow” is caused by

• strong winds associated with outdoor welding.

• magnetic forces associated with direct current.

• too high an amperage for the size of the electrode

• too low an amperage for the size of the electrode

“Duty cycle” is a term used to indicate the

• percentage of time in a 24 hour cycle that a machine can operate at rated

  output.

• percentage of time in a 10 minute period a machine can operate at rated

  output.

• Percentage of time in a machine which can do the type of work for which it

  was designed

• length of time required for the machine to cycle, expressed as a percentage

  run time

When the welding machine is set to DCEP, current flows

• from the work to the electrode.

• from the electrode to the work.

• both to and from the electrode

• depending on the electrode being used.