A. Brass
B. Bronze
C. German silver
D. Cast iron
Correct Answer: Cast iron ✔
Last Updated: February 08, 2019
Related MCQs
- __________ 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 ?
- Which of the following metals cannot be hot worked at room temperature ?
- Which of the following phenomenon will exhibit the minimum heat transfer ?
- Corrosion is__________?
- Super heating of steam is done at constant__________?
- Silicon in steel__________?
- Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature ?
- Which of the following is an unconventional source of energy ?
- Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of __________?
- For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by__________?
- The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag ?
- The same volume of all gases is representative of their__________?
- ‘Amortization’ in respect of financial obligation of a company means the__________?
- The surface tension of a liquid, at critical temperature is__________?
- The lightest non-inflammable gas is__________?
- Nickel and __________ are the alloying element added in steel to increase its toughness?
- Hydrogen in liquid steels is dissolved__________?
- Thermal efficiency of an internal combustion engine is around __________ percent?
- Which of the following is the most wear resistant grade of carbide used for the cutting tools ?