Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
Slip
Fracture
Winning
Dislocation
- To counteract the bad effects of strain hardening on a cold formed part, it must be
- __________ stress cannot be sustained by a fluid in equilibrium.
- What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
- Case hardening of a material is
- With increase in temperature, the surface tension of water
- The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
- Which of the following approaches the ideal gas behaviour most closely?
- Pick out the wrong statement.
- A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
- Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
- High endurance limit of carburised machine parts is because of the fact that carburisation
- If the demand for an item is trebled and the order cost is reduced to one third, then the economic order…
- __________ is the most important element, which controls the physical properties of steel.
- Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
- In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which…
- Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________…
- The best guide to judge the general quality of water is the measurement of its
- Normalising of a casting does not
- The normal stress is the same in all directions at a point in a fluid, only when the fluid
- Function of fusible plug in a boiler is to
- Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the…
- If a solid is compressed adiabatically in its elastic range, its __________ remains constant
- Which of the following is not the function of a volute casing provided in a centrifugal pump?
- Pick out the wrong statement.
- The cathode in an electrochemical cell always carries
- Quartz is a __________ material.
- For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
- A jig is used while __________ a hole.
- Which of the following is the most suitable abrasive for grinding high tensile strength materials?
- A form of stress corrosion failure termed as 'season cracking' is generally observed in