28551. Oxyacetylene reducing flame is used while carrying out welding on
28552. M10 index of coke indicates its
28553. Gantt charts are used for streamlining the
28554. In the Bayer's process, bauxite is digested under pressure using
28555. Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
28556. The substance used as a smoke screen in warfare is
28557. The same volume of all gases is representative of their
28558. Fluorine is not a constituent of
28559. The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
28560. During solid state sintering of powders, the following mechanism can be active.
28561. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.
28562. Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.
28563. The ultimate strength in tension for steel is __________ times the ultimate strength in shear.
28564. The activity of pure hydrogen gas at 1000°C and 5 atm pressure
28565. Which of the following transducers is most commonly used for the measurement of shock and vibration ?
28566. The power of a low capacity prime mover is most suitably measured by a __________ type dynamometer.
28567. __________ addition increases the depth of hardness of steel.
28568. The most important consideration in value engineering is the
28569. Lime contains about 90% CaO. Percentage CaO present in limestone is about
28570. The most important material handling system in an integrated steel plant is the
28571. Property of a material to resist a tensile force without giving away is a measure of its
28572. Cast iron has the unique property of high
28573. Steels with high carbon equivalent have poor weldability, because in these steels during welding
28574. If the pH value of a solution of sodium chloride is 7; then what will be the pH value of the solution after its electrolysis ?
28575. Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.
28576. Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means
28577. Super conduction in metals is observed at a temperature of __________ °K.
28578. Springback in sheet metal bending depends on the
28579. The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is
28580. Which of the following is not used as a fuel in rocket propellaht ?
28581. Hypo (sodium thiosulphate) because of its complex forming behaviour is used in photography to remove undecomposed silver bromide as a soluble complex for __________ of the picture.
28582. 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.
28583. __________ welding will be the most suitable for butt welding two 20 cms thick boiler drum mild steel plates.
28584. Machinability of hard alloys & tool steels is improved by
28585. LASER
28586. __________ forces do not act in case of fluids.
28587. Which of the following is not a natural abrasive ?
28588. The function of a nozzle provided in steam turbine is to
28589. Which of the following polymers is obtained by copolymerisation of three monomers ?
28590. Silicon percentage in the silicon steel used for electrical appliances/equipments is
28591. Material of construction of foundary crucible is
28592. Titanium can be easily welded using __________ welding.
28593. Feed check valve is used in steam boilers to
28594. Three elastic constants for a completely anisotropic elastic material which follows the Hooke's law are young's modulus, elastic limit stress and yield stress. Which of the following properties is most sensitive to increase in strain rate ?
28595. Swaging is a/an __________ operation.
28596. Pig iron is
28597. Classification of metal forming processes into hot and cold working is based on the following parameters.
28598. Kinematic viscosity of water as compared to that of air is
28599. Which of the following is the most suitable for removing fine particles (< 1 micron diameter) from air below its dew point ?
28600. Which of the following is the terminology used for the temperature at which the phase changes occur in a metal ?
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