question 13\nwhich of the following are types of power sources?\ninverter\nengine driven\nrectifier\ntransfor…

question 13\nwhich of the following are types of power sources?\ninverter\nengine driven\nrectifier\ntransformer rectifier\nquestion 14\nwhich polarity places 2/3 of the heat of the arc onto the base metal and 1/3 on the electrode?\ndcep\ndcen\nac\ndcnp

question 13\nwhich of the following are types of power sources?\ninverter\nengine driven\nrectifier\ntransformer rectifier\nquestion 14\nwhich polarity places 2/3 of the heat of the arc onto the base metal and 1/3 on the electrode?\ndcep\ndcen\nac\ndcnp

Answer

Brief Explanations:

  • Question 13: Inverter, engine - driven, rectifier, and transformer rectifier are all types of power sources. Inverters convert DC to AC, engine - driven power sources use an engine (like a gasoline or diesel engine) to generate power, rectifiers convert AC to DC, and transformer rectifiers combine the functions of a transformer (for voltage regulation) and a rectifier.
  • Question 14: In DCEP (Direct Current Electrode Positive), the base metal is the cathode and the electrode is the anode. In an arc welding process, the cathode (base metal here) receives about 2/3 of the heat and the anode (electrode) receives about 1/3 of the heat. In DCEN (Direct Current Electrode Negative), the heat distribution is reversed. AC (Alternating Current) has a more complex heat distribution as the polarity changes. DCNP is not a standard term in this context.

Answer:

  • Question 13: All options (inverter, engine driven, rectifier, transformer rectifier) are types of power sources.
  • Question 14: DCEP.