While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the
Low impact strength
High flexibility
Better finish and surface appearance
High plastic deformation
- Suitability of steel for its use in cable is judged by its strength in
- __________ number determines whether the fluid flow in an open channel is supercritical, critical or…
- At the point of boundary layer separation in fluid flow, the
- __________ can replace tungsten in high speed steel.
- Diamagnetic materials
- Identify the correct statement.
- A dense structure of grinding wheel is not used for the
- Out of the following, the joint produced by __________ has the lowest strength.
- Methyl orange indicator turns
- Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
- Wrought iron is not
- Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
- Out of the following __________ iron has the best capability to bear sudden & excessive shocks.
- Propulsion of rocket follows from the
- __________ is not a case hardening process.
- Closeness of packing is maximum in case of __________ crystal lattice.
- Good design of the casing of a centrifugal pump aims at minimising the
- Recrystallisation temperature of steel is __________ °C.
- Absolute zero pressure can be attained at a temperature of
- Secondary hardening in steels arises out of the
- At 100% relative humidity, the dew point temperature of moist air is
- Unit of viscosity in CGS system is
- Boiler draught of 10 mm water column is equivalent to
- Which of the following is an example of stress corrosion?
- Age hardening is connected with
- Carbon supply in pack carburising process is in the form of
- Broaching tools are usually made of
- Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
- A reduction in thermal resistance during heat transfer does not occur in the
- The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log…