ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key

ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key

61) IS _____ is the code of practice for sanitary pipe work above ground for building.

Answer is:

5329

62) _____ prevents ingress of foul air, insects and vermin from the sewers

Answer is:

Traps

63) For portable water, the highest desirable level of chloride content is

Answer is:

250 mg/l

64) What is used to binding stones, bricks, etc together?

Answer is:

Mortar

65) _____ has a long blade ideal for cleaning grooves and accessing tight spaces.

Answer is:

Paring chisel

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