Tempering operation results in Mechanical properties As given below? Mark as favorite Copy Link reduced tensile strength and hardness increased toughness and ductility both 'A' and 'B' none of the above Check Answer
The process of hardening the upper surface of a carbon steel is called? Mark as favorite Copy Link annealing case hardening tempering normalising Check Answer
The process of softening and making machinable a hard and Rough metallic job by means of heat treatment is called? Mark as favorite Copy Link annealing case hardening tempering normalising Check Answer
The following heat treatment method forms decreasing carbon percentage along the thickness of the specimen toward the core? Mark as favorite Copy Link carburizing nitriding annealing normalising Check Answer
What is the process of heating and cooling for changing the structure of steel for obtaining the required properties called? Mark as favorite Copy Link hardening heat treatment tempering all Check Answer
The charge is fed into the blast furnace through the ________? Mark as favorite Copy Link stake bosh tuyers throut Check Answer
Tempering is done at temperatures _________? Mark as favorite Copy Link Below critical point above critical point melting point none of the above Check Answer
High temperature tempering is carried out in the temperature range of _____? Mark as favorite Copy Link 100 - 200°c 200 - 500°c 700 - 900° 900 - 1000°c Check Answer
Pearlite stage of steel is laminated structure of the following? Mark as favorite Copy Link austenite ferrite cementite ferrite & cementite Check Answer
Which one of the following processes is adapted to improve the internal structure of steel. Which has been subject to severe hammering? Mark as favorite Copy Link hardening tempering annealing normalising Check Answer