Nitriding of a steel part does not increase its
Grain size
Fatigue limit
Surface hardness
Wear resistance
- Which of the following metals cannot be hot worked at room temperature?
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
- __________ test is the appropriate test to determine whether a material is ductile or brittle.
- __________ cannot increase the fatigue strength of a material.
- Evaporative cooling process employs a combination of cooling and humidification in which the
- Fire refining process is employed in case of
- Pick out the wrong statement.
- Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded…
- The most important consideration in value engineering is the
- A psychrometer does not measure the __________ temperature of moist air.
- The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
- Dowtherm is a
- A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C…
- Gage pressure within a spherical droplet of a fluid is 'p'. What will be gage pressure within a bubble…
- The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.
- Consumable electrodes are used in the __________ welding.
- Iron content in Indian iron ore is about __________ percent.
- __________ is used as a material of construction for the blade of power saw.
- Hydro-cyclone is a
- Common salt is produced from sea water in India generally by the __________ method.
- Dies for wire drawing are generally made of
- Steels with high carbon equivalent have poor Weldability, because in these steels during welding
- Pick out the correct statement.
- The product (s) of roasting of a sulphide ore is (are)
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
- Fibre glass is a composite material of
- Primary designation of steel is based on its
- Which of the following is prone to cup and cone fracture?
- The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic…
- Glass reacts with