1.

In a moisture content test, for how long should the sand in infrared heating bulb be heated?(a) 1 – 2 minutes(b) 2 – 3 minutes(c) 3 – 4 minutes(d) 4 – 5 minutesThe question was posed to me in an online quiz.My enquiry is from Testing of Molding Sand in portion Sand Preparation of Casting-Forming-Welding I

Answer»

Correct option is (b) 2 – 3 minutes

The BEST explanation: The MOISTURE CONTENT tests are highly performed in a heating BULB. About 20 to 50 grams of the PREPARED sand is heated using infrared heating for 2 to 3 minutes in the infrared heating bulb.



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