Related Questions
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Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
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__________ remains constant during the adiabatic cooling of moist air.
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Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
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4
Fog is an example of colloidal system of
A. Solid dispersed in gas
B. Solid dispersed in liquid
C. Liquid dispersed in gas
D. Gas dispersed in liquid
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4
What is the value of included angle of a triangular notch for maximum discharge?
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Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of
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4
In practice, the compression ratio of compression-ignition (CI) engine ranges from
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4
Dielectric
A. Is an electrical insulating material
B. Of low resistivity is preferred
C. Should have high thermal conductivity
D. Need not defy the corrosive action of chemicals
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Large scale fire on fuel gas line is normally extinguished by
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Which of the following materials has the poorest electrical conductivity?
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A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
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Highest cutting speed is achieved by the __________ tool material.
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The rolling process cannot be used to produce
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With increase in annealing temperature, the following defect density decreases.
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Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost
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For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot?
B. Temperature - pressure
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Which of the following does not discharge the dust collected as a dry solid?
A. Electrostatic precipitator
D. Gravity settling chamber
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Use of water as a manometric liquid suffers from the disadvantage of its
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Which of the following is an example of cathodic protection of metals against corrosion?
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A form of stress corrosion failure termed as 'season cracking' is generally observed in
A. Thermosetting polymers
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With increase in compression ratio, the volumetric efficiency of air compressor
D. May increase or decrease (depends on the suction pressure)
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Which of the following fastening devices has its both ends threaded?
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Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.
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Broaching tools are usually made of
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Fibre reinforced plastic (FRP) are
A. Made of glass fibre and thermoplastic resins
C. Made of thermosetting resin and glass fibre
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Brittleness induced due to the presence of sulphur in steel can be reduced by adding
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4
Upto the critical radius of insulation, added insulation, will
A. Increase the heat loss
B. Decrease heat loss and will have no effect beyond that
D. Reduce convection heat loss compared to conduction heat less
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Glass reacts with
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Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than
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With decrease in the grain size of a material, its creep resistance
D. Either (A) or (B); depends on the material