A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is
-0.8
0.8
+0.08
-0.24
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- Which of the following is an example of cathodic protection of metals against corrosion?
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- With increase in annealing temperature, the following defect density decreases.
- Brazing filler metal used for joining steel plates
- Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
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- Silicon percentage in silicon steel used for electrical equipments is about
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- In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are…
- Water hammer is caused in steam carrying pipelines, because of
- Pick out the correct statement.
- Gross national product (GNP) means the total value of __________ in a country.
- Which of the, following is not associated with the functioning of a petrol engine?
- The delivery pressure of boiler feed water pump compared to the boiler steam pressure is
- The swift cup test evaluates the following property of a sheet metal.
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- Production of a hollow product by inflation of a tube or parison is called the __________ process.
- Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when…
- Annealing of cast iron
- Transformation range for ferrous material is the temperature interval during which __________ is formed…
- 'Cryogenics' is concerned with the generation & use of low temperature in the range of
- Stellite is a __________ material.
- A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.
- In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just…
- In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean…
- Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution
- Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative…