29052. Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.
29053. Which of the following is an example of stress corrosion ?
29054. FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?
29055. Fibre reinforced plastic (FRP) are
29056. Safety matches is produced using
29057. Calorific value of __________ are almost same.
29058. Which of the following pairs is not correctly matched ?
29062. High endurance limit of carburised machine parts is because of the fact that carburisation
29063. In __________ process, there is an increase in entropy with no degradation of energy.
29064. Which of the following is categorised as the plastic welding ?
29065. In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.
29066. When water is sprayed on air, passing through an insulated chamber maintained at a temperature higher than the dew point of entering air but lower than its dry bulb temperature, then the air is
29067. The hardness of the lathe bed material is measured by the
29068. RADAR is
29069. In the floatation process, pine oil is used as the
29070. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.
29071. Urinary bladder is absent in
29072. Ageing of steel refers to the
29073. When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the
29074. When metals are heated to high temperature, their __________ increases in general.
29075. A friction lighter is normally used for lighting gas welding torch, because of the reason that
29076. __________ is not used as a material of construction in thermocouples.
29077. Coarse grained steels have
29078. Steel balls are manufactured by cold heading. After cold forming, they are subjected to
29079. Free oxygen is removed from boiler feed water, because it
29080. Out of the following, the materials having maximum magnetic permeability is
29081. The physiological connection between the maternal body and foetal body where the exchange of material between the two occurs.
29082. Which of the following is a Parasitic plant?
29083. Old cycle handles are coated with nickel using
29084. CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the
29085. Pick out the wrong conversion of absolute & kinematic viscosities.
29086. Unit molar solution of __________ is the best conductor of electricity.
29087. A coal with high __________ content will ignite most easily.
29088. The weight of a body at the centre of the earth is
29089. For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.
29090. The single most imortant requirement for a turbine blade material is
29091. In cold working of metal as compared to its hot working
29092. __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.
29093. Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.
29094. Which of the following is a weak acid ?
29095. Pig iron is a product of
29096. Flywheel is provided in a machine to
29097. Nickel is a __________ material.
29098. Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
29099. L.D. converters are generally lined with
29100. When the weight of a ball inside the ball mill is just balanced by the centrifugal force,
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