Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.
746
3000
1000
550
- Basicity of the slag in Indian blast furnace is in the range of
- Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
- Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.
- __________ is the most important element, which controls the physical properties of steel.
- Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
- Tumbling is the process of improving the __________ of the materials/parts.
- With increase in temperature, the electrical conductivity of a __________ decreases.
- In electrical resistance welding, distortion results from the use of improper
- Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
- Increase in the entropy of a system represents the
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
- Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.
- Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
- Joining of thin foils is preferred to be done by
- The ratio of the shear stress to the principal stress on a principal plane is
- Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
- Titanium is produced by __________ of Ti Cl4.
- The surface tension of a liquid, at critical temperature is
- Ceramic compounds as compared to metallic compounds
- __________ is a non volatile film forming constituent of a paint.
- The rolling process cannot be used to produce
- Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.
- Work done by a/an __________ process is determined by ∫p. dv
- Minimum thermal efficiency of a steam boiler may be around __________ percent
- Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air…
- Thermal conductivity of a material does not depend upon its
- With increase in temperature, the electrical conductivity of semiconductors
- The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
- Cementite is in the lamellar form in the __________ phase of steel.
- The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress…