Source of heat supply in a cupola is Coke Pulverised coal Charcoal Lumpy coal TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following metals is the most prone to work hardening? Aluminium Lead Brass Copper TRUE ANSWER : ? YOUR ANSWER : ?
In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following : Blast of air Mixture of water and air Rain of molten lead Jet of water at high pressure TRUE ANSWER : ? YOUR ANSWER : ?
Cold chiesel & hammers are made of High carbon steel Mild steel High speed steel Forged steel TRUE ANSWER : ? YOUR ANSWER : ?
Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature. None of these Decreases Shows inversion of solubility Increases TRUE ANSWER : ? YOUR ANSWER : ?
On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase. Modulus of toughness Percent elongation Modulus of resilience Ultimate tensile strength (UTS) TRUE ANSWER : ? YOUR ANSWER : ?
In the Bayer's process, bauxite is digested under pressure using NH₃ H₂SO₄ NaOH HCl TRUE ANSWER : ? YOUR ANSWER : ?
__________ forces do not act in case of fluids. Centrifugal Elastic Tensile Vibratory TRUE ANSWER : ? YOUR ANSWER : ?
Oxyacetylene reducing flame is used while carrying out welding on Grey cast iron Alloy steel Mild steel High carbon steel TRUE ANSWER : ? YOUR ANSWER : ?
Function of feed check valve in a boiler is to Check the water level in the boiler drum Regulate the water flow to boiler Prevent the back flow of water Facilitate circulation of high pressure feed water TRUE ANSWER : ? YOUR ANSWER : ?