A spring material should have low
Elastic limit
Deflection value
Fatigue resistance
None of these
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- With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
- For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
- The refrigerant freon-12 is chemically
- Stellite is a __________ material.
- Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?
- The malleability of a material is the property by virtue of which it can be rolled or hammered into…
- Pick out the wrong statement.
- Corrosion is
- Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
- Silicon percentage in acid resistant cast iron is about
- Drossing is a __________ operation.
- Pick out the wrong statement.
- Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when…
- Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?
- Angular displacement can be measured suitably by a
- Temper brittleness of a material can be fairly detected by the __________ test.
- Normalising does not __________ of a metal.
- Use of flux during soldering is done to
- Particle nature of cathode rays is proved due to the fact that they
- Reduction in the grain size reduces the __________ of the material.
- Steel produced from phosphatic iron is __________ in nature.
- In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then…
- Which of the following is the most suitable material of construction for the condenser tubes, where…
- Limestone is added in the blast furnace (during pig iron manufacture) to
- Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
- In multipass welds, shot peening is done after each pass to
- Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
- Pick out the wrong statement.
- Plants produce carbohydrates from the CO2 present in the atmosphere by
- A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C.…