Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?
- Out of the following, the __________ pipe has the least corrosion resistance.
- The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of…
- Which of the following heat treatment processes is usually applied to castings?
- Pick out the wrong statement.
- Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing…
- The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
- A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
- Hot working of lead is carried out at
- In electrical resistance welding, distortion results from the use of improper
- Which of the following is an example of cathodic protection of metals against corrosion?
- Which of the following metals is not subjected to electrolytic refining/purification?
- What is the range of tempering temperature (°C) for most of the materials?
- Ammonia gas can be dried by
- Normalising of an object does not
- With increase in temperature, the surface tension of water
- Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
- Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
- Hydrogen can be
- Yield strength of a material is determined by the __________ test.
- The malleability of a material is the property by virtue of which it can be rolled or hammered into…
- In the acid Bessemer process, the hot metal should have the following composition.
- __________ is not used as a material of construction in thermocouples.
- Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as
- Which of the following performance characteristics of a S.I engine is not affected by the front end…
- Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation…
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
- The refractory lining of the bottom in a basic electric arc furnace is made of
- Oxygen cylinders used for autogenous (cutting/welding) purposes are
- Projection welding & stud welding is categorised as the __________ welding.