WELDING - Practice Mode

1) Which type of soldering iron copper tip is heated by a forge?

Transformer type electric soldering iron Electric soldering iron Soldering iron (hatchet type) General purpose electric soldering iron

Correct Answer: Soldering iron (hatchet type)

2) What is the application of fine solder?

Soldering brass & copper Galvanized iron sheets Sheet metal application Heaters and general electrical work

Correct Answer: Heaters and general electrical work

3) Which inorganic flux is used in the form powder or mixed with water to clean the iron or steel surfaces?

Ammonium chloride Zinc chloride Phosphoric acid Hydrochloric acid

Correct Answer: Ammonium chloride

4) What is the maximum permitted gap between the two joining surface in brazing?

0.06 mm 0.07 mm 0.08 mm 1.00 mm

Correct Answer: 0.08 mm

5) What is the melting temperature of brazing filler rods used to braze in iron and its alloys?

840 Degree Centigrade to 920 Degree Centigrade 850 Degree Centigrade to 940 Degree Centigrade 860 Degree Centigrade to 950 Degree Centigrade 880 Degree Centigrade to 960 Degree Centigrade

Correct Answer: 860 Degree Centigrade to 950 Degree Centigrade

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