Steel & cast iron pipes are produced by __________ casting.
Slush
Die
Investment
True centrifugal
- Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
- In a good rimming steel
- Dielectric
- A material in which the atoms are arranged regularly in some directions but not in others, is termed…
- Normalising does not __________ of a metal.
- __________ the exhaust gas is an indication of the incomplete combustion of fuel.
- Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
- In chemical dehumidification process
- Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
- The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
- Oxyacetylene reducing flame is used while carrying out welding on
- Lap joints are preferred over butt joints in soldering/brazing, because these joints are
- Non-ferrous alloys used for making cutting tools need not have high
- Carbon is present in the form of __________ in grey cast iron.
- __________ joint is mostly used for joining pipes carrying water at low pressure.
- Exposure to __________ accelerates the degradation of plastics.
- Principal alloying element in Elinvar (used for making hair springs for watches) is
- In an eutectic system, two elements are completely
- Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)
- Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same…
- Yield strength of a polycrystalline metal with an average grain size d, is proportional to
- Leakage in a cooking gas cylinder is detected by
- Which of the following gases cause global warming?
- Main constituent of bone ash is
- Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.
- Nitriding of a steel part does not increase its
- Dislocation cross-slip is difficult in those materials, which have
- Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
- The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
- Water flow in the river during flood can be categorised as the __________ flow.