BASIC PLUMBING 1 CUTTING AND BENDING OF PIPE - Practice Mode

1) Which flux is used for soldering refrigeration fittings?

Fallow Phosphoric Hydrochloric acid Alcohol and resin

Correct Answer: Alcohol and resin

2) What is the working pressure usually made on joints for pressure test?

5 kg/cm<sup>2</sup> 6 kg/cm<sup>2</sup> 8 kg/cm<sup>2</sup> 10 kg/cm<sup>2</sup>

Correct Answer: 10 kg/cm<sup>2</sup>

3) What is the size of AC pipes available?

5 cm to 100 cm diameter 5 cm to 120 cm diameter 5 cm to 130 cm diameter 5 cm to 140 cm diameter

Correct Answer: 5 cm to 100 cm diameter

4) What type of test to be conducted on S.W. pipe?

Flow test Pressure t Vacuum test Hydraulic test

Correct Answer: Hydraulic test

5) What is the Indian Standard specification of sand cast CI pipes used for soil pipes?

IS 1536 IS 1538 IS 1729 IS 3989

Correct Answer: IS 1729

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