Materials and Construction In order to be called steel, an alloy should have iron percentage greater than 90 80 70 50 90 80 70 50 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The phenomenon in which slow extension of material takes place with the time at constant load is called Plasticity Creep Ductility Elasticity Plasticity Creep Ductility Elasticity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? High frequency transformers Induction motors Generators and small motors Armature of small motors/generators High frequency transformers Induction motors Generators and small motors Armature of small motors/generators ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The material of construction of pressure mills used for squeezing out the juice from sugar cane is Mild steel Stainless steel Monel Cast iron Mild steel Stainless steel Monel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A steel alloy containing 36% nickel is called __________ , which has a zero co- efficient of expansion. Austenitic stainless steel Invar High speed steel Heat resisting steel Austenitic stainless steel Invar High speed steel Heat resisting steel ANSWER DOWNLOAD EXAMIANS APP
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. Dilute HCI Concentrated H₂SO₄ Acetic acid None of these Dilute HCI Concentrated H₂SO₄ Acetic acid None of these ANSWER DOWNLOAD EXAMIANS APP
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