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You Are On Multi Choice Question Bank SET 300

15001. Which of the following is used to produce draught in the locomotive boilers ?





15002. Temper brittleness of a material can be fairly detected by the __________ test.





15003. When the wavelength of incident X-rays increases, the angle of diffraction





15004. The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is





15005. The specific gravity of coal depends mainly on its __________ content.





15006. In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is





15007. Normalising does not __________ of a metal.





15008. Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?




15009. With increase in annealing temperature, the following defect density decreases.





15010. Carnot cycle is also termed as the constant __________ cycle in thermodynamics.





15011. Thermistors are used in __________ devices.





15012. Broaching tools are usually made of





15013. The ratio of the shear stress to the principal stress on a principal plane is





15014. Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)





15015. Propulsion of rocket follows from the





15016. In multipass welds, shot peening is done after each pass to





15017. Pick out the correct statement.




15018. Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is





15019. In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?





15020. Enzymes belong to the category of





15021. What is the value of included angle of a triangular notch for maximum discharge ?





15022. For separating small pieces of metal from engine oil of a car, the best separating technique is the





15023. Gama’s Islamiya is a terrorist organisation in?





15024. On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.





15025. Fire refining process is employed in case of





15026. Larger length & diameter water pipes are made by





15027. Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of





15028. The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the





15029. Baffles provided on the shell side of a shell and tube heat exchanger are meant for






15030. When an isolated thermodynamic system executes a process,





15031. Brittleness induced due to the presence of sulphur in steel can be reduced by adding





15032. Atomic __________ of an element is a whole number.





15033. 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.





15034. Which of the following is an unconventional source of energy ?





15035. The product (s) of roasting of a sulphide ore is (are)





15036. Which of the following are considered applications of ultrasonic testing ?





15037. Suitability of steel for its use in cable is judged by its strength in





15038. Hydrogen in liquid steels is dissolved





15039. __________ iron is produced by the annealing of white cast iron.





15040. The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the





15041. Fahrenheit and Centigrade scales have the same readings at





15042. Which of the following low melting alloy containing bismuth and lead is used for electric fuse ?





15043. Water-tube boiler is the one, in which





15044. Dephosphorisation of molten pig iron is favoured by





15045. In a neutral solution





15046. Which of the following commonly used condenser tube materials has the lowest thermal conductivity?





15047. Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.





15048. A common disinfectant used in village wells for disinfection of water is





15049. Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?





15050. Which of the following metals can not be hot worked at room temperature ?





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