Related Questions
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Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
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If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.
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Alloy powder manufactured by the following process have spherical shapes.
A. Electrochemical deposition
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Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.
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Biological shield in a nuclear reactor is generally provided to protect against the
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Atomic __________ is a whole number for an element.
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The pressure outside a bubble/droplet of liquid is __________ the internal pressure.
D. Unpredictable; depends on the bubble size
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The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
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Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.
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Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
D. Thermal co-efficient of expansion
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Sudden fall of atmospheric pressure by a large amount is an indication of the
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Production of a hollow product by inflation of a tube or parison is called the __________ process.
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The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
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A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
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Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
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The following type of bonding is strongly directional in solids.
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Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as
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'Amortization' in respect of financial obligation of a company means the
A. Liquidation of financial obligations on instalment basis
B. Commitment of financial obligation on priority
C. Liquidation of all the obsolete equipments of the company
D. Modernisation of the plant equipments
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Tumbling is the process of improving the __________ of the materials/parts.
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Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?
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Ganister contains maximum percentage of
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In __________ process, there is an increase in entropy with no degradation of energy.
B. Isochoric heat addition
D. Isobaric heat addition
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The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
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__________ is used for tying the steel columns to concrete foundation.
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Silicon percentage in acid resistant cast iron is about
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The material used for coating the welding electrode is termed as the
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In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following:
A. Jet of water at high pressure
C. Mixture of water and air
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Wrought iron does not have
A. Uniform strength in all directions
B. Ability to hold protective coating
C. High ductility & corrosion resistance
D. Easily weldable characteristics
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The life of a ball bearing is inversely proportional to
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In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.
A. μ , α and θ all have units of m/s
B. μ , α and θ all have units of m2/s
C. α and θ have units of m2/s, while μ has unit of m/s
D. α and θ have units of m/s, while μ has unit of m2/s