Boiler tube size is specified by its thickness and __________ diameter.
Outside
Inside
Mean
None of these
- __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where…
- The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
- Which one can be directly solidified from gaseous state without entering into liquid state?
- Which of the following is an unconventional source of energy?
- Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
- Which one of the following is incombustible?
- The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
- The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters…
- Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
- For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
- __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
- Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
- At the point of boundary layer separation in fluid flow, the
- Fine grained steels have
- Which of the following is not an explosive?
- The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
- Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
- Which of the following has the least value of ultimate tensile strength (UTS)?
- Batch process is preferred over continuous process, when the
- Primary designation of steel is based on its
- Calorific value of __________ are almost same.
- What is the value of entropy at 273°K?
- Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion…
- Boiler draught of 10 mm water column is equivalent to
- Powder metallurgy is used to produce
- Steels with high carbon equivalent have poor Weldability, because in these steels during welding
- The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
- Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
- The most important consideration in value engineering is the
- Gas turbine normally employs a constant __________ cycle.