A. Spheroidising
B. Annealing
C. Tempering
D. Normalising
Correct Answer: Annealing ✔
Last Updated: February 08, 2019
Related MCQs
- The ratio of the shear stress to the principal stress on a principal plane is__________?
- Which of the following is a commonly used manometric liquid for low pressure range ?
- __________ has a negative co-efficient of linear expansion?
- Maximum permissible sulphur content in steel is __________ percent ?
- A spring material should have low__________?
- A common disinfectant used in village wells for disinfection of water is __________?
- Which of the following is not an ore of copper ?
- Dislocations are __________ defects?
- M10 index of coke indicates its__________?
- Addition of __________ to steel does not impart hardness?
- Which of the following is an acidic constituent of B.F. slag ?
- Larger length & diameter water pipes are made by__________?
- Eutectoid composition of carbon steel at room temperature is__________?
- The refrigerant freon-12 is chemically__________?
- Water-tube boiler is the one, in which __________?
- Ferromagnetic materials owe their properties to __________ inner sub-shells ?
- The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element ?
- Out of the following, which will fracture most readity, when hit with a hard hammer ?
- __________ stress cannot be sustained by a fluid in equilibrium ?
- Oxyacetylene reducing flame is used while carrying out welding on__________?
- For a spontaneous natural process at constant temperature and pressure, the free energy of the system always__________?
- To improve the machinability of steel, it is generally subjected to __________?
- Dephosphorization of molten pig iron is favoured by__________?
- Inertial forces are obtained, when the elastic forces are multiplied by __________ number?
- Metal shots used in shot blasting are made of __________?
- Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot__________?
- A pycnometer is used for the measurement of__________?
- Wavelength of radiation emitted by a body depends on the __________ of its surface?
- Which of the following metals is the most prone to work hardening ?
- A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is__________?
- Working of linear variable differential transducer (LVDT) is based on the principle of variable__________?
- The dimensional formula of bulk modulus of elasticity is same as that of the __________?
- A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material ?
- The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times ?
- In TIG welding, thoriated tungsten electrodes are used, because it __________?
- In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?
- For separating small pieces of metal from engine oil of a car, the best separating technique is the __________ ?
- Fahrenheit and Centigrade scales have the same readings at __________?
- Increasing sulphur content in pig iron tends to make it __________?
- The substance used as a smoke screen in warfare is__________?
- The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the__________?
- Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of__________?
- Which of the following low melting alloy containing bismuth and lead is used for electric fuse ?
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be__________?
- Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of__________?
- Brazing is the joining of metals__________?
- Cementite is in the lamellar form in the __________ phase of steel ?
- Difference at any instant between the value of the controlled variable and the set point is called the__________?
- The boiling & freezing points on a newly defined temperature scale in degree ‘D’ are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D ?
- Limestone is added in the blast furnace (during pig iron manufacture) to__________?
- Which of the following equipments is used for liquid dispersion ?