Related Questions
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4
Gas turbine normally employs a constant __________ cycle.
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4
Gantt charts are used for streamlining the
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4
While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.
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4
Electrometallurgical methods of metal extraction is normally used for those metals
A. Whose oxide/ore is not reduced by carbon
B. Which fall in the category of alkali & alkaline earth metals
C. Which stands higher in the electrochemical series of the metal
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4
According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is
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4
Pearlite comprises of
A. 87% cementite & 13% Fe
B. 87% ferrite & 13% cementite
C. 93.33% ferrite & 6.67% C
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4
Primary designation of steel is based on its
A. Hardness & tensile strength
D. Alloying elements content
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Silicon in steel
A. Makes it usable in almost all magnetic circuits where alternating current is used
B. Increases its electrical resistivity and decreases the hysteresis loss
C. Is present upto 5% & 4% respectively when used in transformers & motor armatures
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4
Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its
C. Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry
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4
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.
D. Either (A), (B) or (C); depends on the size of atom
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The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
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The leaching solvent used in Baeyer's process for the purification of bauxite is
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Which of the following is resistant to the action of both heat & chemicals?
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Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene welding is __________ Nm3.
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4
For an ideal gas, Cp - Cv is
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For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is Rs. 20 and sales price is Rs. 30 per toy. The break even production per month will be __________ toys.
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4
Vernier calipers cannot be used to measure the
A. I.D. & O.D. of the shaft
D. Clearance between two mating surfaces
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4
There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.
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4
__________ test can be termed as the semidestructive test.
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Addition of __________ to steel does not help in improving its machinability.
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Chromium molybdenum steel cannot be welded using __________ welding.
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Which of the following is an acidic constituent of B.F. slag?
A.
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Which of the following commonly used condenser tube materials has the lowest thermal conductivity?
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4
Thermit welding uses the following energy source.
C. Energy of high velocity electrons
D. Heat generated by friction
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4
Laser is a device to produce
D. A beam of coherent light
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4
The trace metal present in insulin is
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A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.
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With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.
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4
For dynamic strain measurement, the Wheatstone bridge used is of __________ type.
A. Voltage sensitive null
B. Voltage sensitive deflected
C. Current sensitive deflected
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at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of at 1173 K?