'Ice point' is designated on Fahrenheit temperature scale by
0°
32°
62°
212°
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- Pick out the wrong statement about nucleate boiling.
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- Boiling point of water gets lowered at high altitudes (e.g., hills), because
- Which of the following materials does not form adherent oxide film on surface?
- The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
- Thermit welding uses the following energy source.
- The joint for soldering is supported by binding wire made of
- Which of the following forces does not act on a fluid at rest?
- Aluminium is extracted from
- For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation…
- Spheroidising of a material is a/an __________ process.
- Temperature attained in soldering of metals is about __________ °C.
- In chemical dehumidification of air
- Which of the following alloying elements is present in maximum percentage in high speed steel?
- All of the following alloying elements of steel increases hardness but sacrifice ductility, except
- Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional…
- At absolute zero temperature, for any reaction involving condensed phases
- The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D…
- Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same…
- A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle…
- Increasing sulphur content in pig iron tends to make it