The following thermocouple may be used for measuring temperature upto 1873°K.
Chromel-alumel
Copper-constantan
Platinum-platinum rhodium
Iron-constantan
- Which of the following is the most wear resistant grade of carbide used for the cutting tools?
- A pycnometer is used for the measurement of
- Laser is a device to produce
- Which of the following varies as the square root of oil pressure during atomisation of fuel oil through…
- While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
- Which of the following alloying elements is present in maximum percentage in high speed steel?
- Super conduction in metals is observed at a temperature of __________ °K.
- Uniform ramming of sand in green sand moulding process leads to
- Pressure required to increase the density of water by about 1% is __________ atmosphere.
- Auto collimator is used to check
- In an eutectic system, two elements are completely
- Cast iron contains __________ percent carbon.
- With increase in temperature, the electrical conductivity of semiconductors
- Which of the following is not a dielectric material?
- Change in volume of metals from absolute zero temperature to their melting points is
- Normalising does not __________ of a metal.
- The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
- The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
- The malleability of a material is the property by virtue of which it can be rolled or hammered into…
- Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
- __________ is not a case hardening process.
- __________ of austenite decreases the hardenability in steel.
- Which of the following is not used as a bearing material?
- Shrinkage allowance on pattern is provided to compensate for shrinkage when the
- Hot extrusion of aluminium is done in the temperature range of __________ °C.
- Lap joints are preferred over butt joints in soldering/brazing, because these joints are
- Spheroidising of a material is a/an __________ process.
- Which of the following low melting alloy containing bismuth and lead is used for electric fuse?
- Which of the following phenomenon will exhibit the minimum heat transfer?
- Out of the following, the __________ pipe has the least corrosion resistance.