Plasma arc machining

In plasma arc machining electrode is connected to

• Positive

• Negative

• Neutral

• None of the above

In PAM electrode is made up of which material

• Copper

• Brass

• Tungsten

• MS

Plasma cutting torch nozzle is made up off

• Tungsten

• Ms

• High alloy steel

• Copper

Stand of distance in PAM is

• 6-10mm

• 1-5mm

• 10-16mm

• 20-30mm

PAM is suitable for

• Both conductive and non conductive

• Only non conductive

• Only conductive

• None of the above

The spark Gap in PAM is

• 10mm

• 2mm

• 12mm

• 15mm

Cost of PAM is

• Less

• High

• Both a and b

• None

Material removal rate in PAM is

• High

• Low

• Medium

• None

PAM uses which proces

• Chemical

• Electrical

• Electro chemical

• Electro thermal

Example for plasma

• Sun

• Star

• Gas

• Both a and b