Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is
Nickel
Cobalt
Vanadium
Platinum
- Young's modulus of a material is the measure of its
- Work study deals with the __________ study.
- In multipass welds, shot peening is done after each pass to
- Spheroidising of a material is a/an __________ process.
- Enzymes belong to the category of
- A compact estimate about the amount of materials handling between various work stations is obtained…
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- Colour comparator is used to measure the
- The most suitable material for die casting is
- Metal shots used in shot blasting are made of
- Matte smelting is used in the extraction of
- Hot extrusion of aluminium is done in the temperature range of __________ °C.
- Pick out the wrong statement.
- On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the…
- For grinding of softer materials, the grinding wheel should have __________ grain size.
- One ton of refrigeration is not equivalent to the heat removal rate of
- Cold chisel & hammers are made of
- The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 ×…
- Tempering of a material does not improve its
- Babbitt lining is used on brass/bronze bearings to increase the
- Which of the following is an example of stress corrosion?
- Maximum permissible air velocity in pipelines is about __________ metre/second.
- Vernier calipers cannot be used to measure the
- Encyclopaedia of Chemical Technology has been
- Drills are usually made of
- Pick out the wrong statement about nucleate boiling.
- __________ fluid force is not considered in the Navier-Stokes equation.
- 'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable…
- The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of…
- The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…