Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
Fracture
Dislocation
Slip
Twinning
- __________ is the hardest material out of the following.
- Which one of the following is incombustible?
- __________ number determines whether the fluid flow in an open channel is supercritical, critical or…
- Recrystallisation temperature of steel is __________ °C.
- One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
- During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional…
- __________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in…
- Pick out the wrong statement.
- __________ property of steel increases by addition of large amount of silicon in it.
- Corona discharge is related to the operation of a/an
- Babbitt lining is used on brass/bronze bearings to increase the
- Addition of __________ to steel does not impart hardness.
- Wood is a/an __________ material.
- The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic…
- What is the percentage of chromium in 18-4-1 high speed steel?
- The units of the rate constant for a second order reaction are
- Alloy powder manufactured by the following process have spherical shapes.
- Ammonia leakage in the refrigeration system is detected by
- Diffusion co-efficient of a metal in a solid solution depends upon its
- A common disinfectant used in village wells for disinfection of water is
- Absolute zero pressure can be attained at a temperature of
- Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________…
- Isotropic materials have the same __________ in all directions.
- Consideration of the creep is the most important in case of the
- On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate…
- __________ is the most important element, which controls the physical properties of steel.
- Case hardening of a material is
- Change in volume of metals from absolute zero temperature to their melting points is
- Cassiterite is an ore of
- __________ pipe is the most suitable for carrying sanitary drainage.