Addition of __________ to steel does not help in improving its machinability.
Sulphur
Silicon
Lead
Phosphorous
- The material used for coating the welding electrode is termed as the
- The surface tension of a liquid, at critical temperature is
- Sub zero treatment of steel is done to
- Which of the following metals reacts violently with water?
- The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
- The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
- Maximum consumption of limestone is in the __________ industry.
- The refractory lining of the bottom in a basic electric arc furnace is made of
- The ratio of the shear stress to the principal stress on a principal plane is
- Highest cutting speed is achieved by the __________ tool material.
- __________ joint is mostly used for joining pipes carrying water at low pressure.
- For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
- Pick out the correct statement.
- As the fluid flow rate increases, the float of the Rotameter
- When an isolated thermodynamic system executes a process,
- Function of gear box is to
- __________ the exhaust gas is an indication of the incomplete combustion of fuel.
- Basicity of the slag in Indian blast furnace is in the range of
- Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
- Annealing of cast iron
- Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat…
- Reduction in the grain size reduces the __________ of the material.
- Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
- __________ can replace tungsten in high speed steel.
- Which one of the following is incombustible?
- A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through…
- The hardenability of steel decreases with
- Uniform ramming of sand in green sand moulding process leads to
- Spherical shape of mercury droplets is due to its
- Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation…