The welding set up is said to have straight polarity, when Work is connected to the positive terminal and the electrode holder to the negative terminal.
114) The welding set up is said to have straight polarity, when
Answer is:
work is connected to the positive terminal and electrode holder to the negative terminal
Explanation:
Related Workshop Technology MCQ with Answers
Answer is:
direct current is used
Explanation:
Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals.
For arc welding Direct current is used.
Answer is:
welding rod coated with fluxing materials is used
Explanation:
Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.
Answer is:
Submerged arc welding
Explanation:
This is a well established and extremely versatile method of welding. Submerged-arc welding (SAW) involves the formation of an arc between a continuously fed electrode and the work piece.
A blanket of powdered flux, which generates a protective gas shield and a slag (and may also be used to add alloying elements to the weld pool), protects the weld zone. A shielding gas is not required.
Answer is:
bare metal electrode and the work
Explanation:
Submerged arc welding is an arc welding process in which heat is generated by an arc which is produced between bare consumable electrode wire and the workpiece.