Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
Tensile strength
Compressive strength
Young's modulus
Thermal co-efficient of expansion
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- Induced draft fans provided in large thermal power plant boilers have __________ blades.
- The most important consideration, while designing the refrigeration system of an aircraft is that the…
- In the Bayer's process, bauxite is digested under pressure using
- The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the…
- The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume :…
- Yield strength of a polycrystalline metal with an average grain size d, is proportional to
- Pick out the wrong statement about nucleate boiling.
- Silicon crystal can be converted to p-type semiconductor by doping with
- With increase in temperature, the electrical conductivity of a __________ decreases.
- Oxide layer formed on the non-ferrous metal surface after its annealing is
- Natural water contains approximately __________ percent of heavy water.
- __________ is the hardest material out of the following.
- Potable water means the water used for
- Addition of __________ to steel does not help in improving its machinability.
- Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the…
- Maximum permissible air velocity in pipelines is about __________ metre/second.
- Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded…
- Pick out the correct statement.
- Hydrogen in liquid steels is dissolved
- Softening of hardened steel is done by its
- The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.
- Pick out the wrong statement.
- Atomic __________ is a whole number for an element.
- Which of the following phenomenon will exhibit the minimum heat transfer?
- Cassiterite is an ore of
- Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
- A material being tested for endurance strength is subjected to the __________ load.
- Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
- Enzymes belong to the category of
- Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…