Riveted joint

Welded joint

soldered joint

Press fit joint

An acute irritation/pain in the eyes caused due to radiations emitted during welding

The distance from the tip of electrode to the point where the arc makes contact with the work piece

Centre point of the arc in an arc welding process

none of the above

only alternating currents

only direct currents

either alternating or direct current

none of the above

alternator

transformer

rectifier

ammeter

a solder with 60% tin and 40% lead

a solder with 40% tin and 60%lead

a solder with 60% tin and 40% copper

a solder with 40% tin and 60% copper