__________ of hard alloy and tool steel is done to make it easily machinable.
Case carburising
Tempering
Normalising
Annealing
- Diamagnetic materials
- Tesla metre per ampere (T. m/A) is the unit for the measurement of
- The most important requirement for aluminium industry is the availability of cheap
- Direct conversion of thermal energy to electrical energy is facilitated by the
- The most economical channel section for the fluid flow is the one for which the discharge is maximum…
- On being hit with a hammer, __________ will readily fracture.
- Water hammer is caused in steam carrying pipelines, because of
- Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
- Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.
- Dowtherm is a
- Which of the following has the highest value of refractive index?
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
- Production of a hollow product by inflation of a tube or parison is called the __________ process.
- Secondary hardening in steels arises out of the
- With increase in steam pressure, its specific volume decreases
- __________ of test specimens is not involved in any hardness testing method.
- The most important consideration in value engineering is the
- The property of material, by which a given amount of energy is absorbed by it without plastic deformation,…
- Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
- In case of a, centrifugal pump, the ratio h1/h2 is termed as the __________ efficiency (where, h1 =…
- Chlorine acts as a bleaching agent only in the presence of
- Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
- The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
- Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.
- High endurance limit of carburised machine parts is because of the fact that carburisation
- Which of the following is an example of stress corrosion?
- Resilience of a bolt can be increased by increasing its
- Spherical shape of mercury droplets is due to its
- What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
- Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses…