Exposure to __________ accelerates the degradation of plastics.
Ultraviolet radiation
High atmospheric temperature
High ambient temperature
Damp atmosphere
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- Shrinkage allowance on pattern is provided to compensate for shrinkage when the
- More than 95% of __________ is present in corundum.
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- Pick out the wrong statement.
- Constituents of stellite are
- Difference at any instant between the value of the controlled variable and the set point is called the
- Stellite is a __________ material.
- Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.
- Electrometallurgical methods of metal extraction is normally used for those metals
- A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation…
- The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
- Potable water means the water used for
- __________ test can be termed as the semidestructive test.
- Which one can be directly solidified from gaseous state without entering into liquid state?
- Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?
- The rolling process cannot be used to produce
- __________ stress cannot be sustained by a fluid in equilibrium.
- Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute…
- Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
- Aluminium is extracted from
- Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
- The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________…
- The phenomenon occurring during explosion of a hydrogen bomb is
- With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
- Which of the following is not used as a bearing material?
- While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________…
- Babbitt lining is used on brass/bronze bearings to increase the