Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its Low temperature strength properties High strength and corrosion & oxidation-resistance at elevated temperature Its ability to be cast, rolled, forged & stamped High strength to weight ratio TRUE ANSWER : ? YOUR ANSWER : ?
A material is called 'ductile', if it can be Fractured without deformation Drawn into wires Hammered to a thin sheet Made lustrous by heating it TRUE ANSWER : ? YOUR ANSWER : ?
Glass lined vessels are not used for handling Dilute HCI Dilute HNO₃ Hydroflouric acid Dilute HNO₃ TRUE ANSWER : ? YOUR ANSWER : ?
The specific gravity of coal depends mainly on its __________ content. Volatile matter Ash Carbon Moisture TRUE ANSWER : ? YOUR ANSWER : ?
Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of Copper Aluminium High carbon steel Brass TRUE ANSWER : ? YOUR ANSWER : ?
Gas holder of a gobar (cowdung) gas plant is made of Mild steel Aluminium Molybdenum stainless steel Tin TRUE ANSWER : ? YOUR ANSWER : ?
Carbon tetrachloride can be stored in a storage vessel made of Tin Stainless steel All of these High silicon iron (14% Si) TRUE ANSWER : ? YOUR ANSWER : ?
Wood metal is not used for making Soft solder Storage tank for storing brine and caustic soda Fusible safety plug for pressure cooker Casting for dental work TRUE ANSWER : ? YOUR ANSWER : ?
Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower Thermal conductivity Corrosion resistance Abundant availability Price TRUE ANSWER : ? YOUR ANSWER : ?
The purpose of nitriding the steel is to Soften its surface None of these Improve its reliability Harden its surface TRUE ANSWER : ? YOUR ANSWER : ?