Materials and Construction Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. None of these Concentrated H₂SO₄ Acetic acid Dilute HCI None of these Concentrated H₂SO₄ Acetic acid Dilute HCI ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The increase in hardness of metal due to its cold working is termed as the __________ hardening. Work Flame Induction Age Work Flame Induction Age ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ? Stainless steel Kel-F and teflon Graphite Monel Stainless steel Kel-F and teflon Graphite Monel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing. Arsenic Oxygen Bismuth Antimony Arsenic Oxygen Bismuth Antimony ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Very high sulphur in pig iron makes Its brittle and malleable Its casting unsound All of these Its hard and machinable Its brittle and malleable Its casting unsound All of these Its hard and machinable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not a non-ferrous alloy? Muntz metal Meehanite Gun metal Magnalium Muntz metal Meehanite Gun metal Magnalium ANSWER DOWNLOAD EXAMIANS APP
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