For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by
- In case of simple harmonic motion, displacement is proportional to the
- The specific gravity of coal depends mainly on its __________ content.
- Pick out the correct statement about the condensation.
- Broaching tools are usually made of
- Dislocation cross-slip is difficult in those materials, which have
- Fibre glass is a composite material of
- Angular displacement can be measured suitably by a
- __________ remains constant during the adiabatic cooling of moist air.
- Function of fusible plug in a boiler is to
- High endurance limit of carburised machine parts is because of the fact that carburisation
- The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.
- Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be…
- Baffles provided on the shell side of a shell and tube heat exchanger are meant for
- In the diving apparatus, helium is used along with oxygen, because it is
- Batch process is preferred over continuous process, when the
- A jig is used while __________ a hole.
- Corona discharge is related to the operation of a/an
- Which of the following is a boiler accessory i.e., not a boiler mounting?
- Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
- Which of the following processes follows the hardening process for reducing the hardening strains &…
- Which of the following is the most suitable abrasive for grinding high tensile strength materials?
- The rolling process cannot be used to produce
- Unit of viscosity in CGS system is
- In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer…
- L.D. (Linz-Donawitz) converter is used in the production of
- Pressure required to increase the density of water by about 1% is __________ atmosphere.
- Preheating before welding is done to
- Routing in production, planning & control is concerned with the
- For preparation of porous bearings by powder metallurgy, preferred particle shape is
- The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log…