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The samples of the moisture test are prepared in _______ heater bulb.

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in Foundry and Forging by (110k points)
The samples of the moisture test are prepared in _______ heater bulb.

(a) Infrared

(b) X-ray

(c) Radio

(d) Ultraviolet

The question was posed to me in homework.

My question is taken from Sand Control Tests topic in portion Pattern Materials & Moulding Sand Tests of Foundry and Forging

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Best answer
Correct choice is (a) Infrared

The best I can explain: In a foundry testing lab, the samples used for moisture test are 20 to 50 grams of the prepared sand place in the pan and heated by an infrared heater bulb for 2 to 3 minutes. The wavelength of the infrared rays is high enough to generate heat and evaporate the moisture.

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