Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
1
10
25
50
- Maximum permissible air velocity in pipelines is about __________ metre/second.
- According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear…
- With increase in steam pressure, its specific volume decreases
- __________ is the hardest material out of the following.
- Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
- __________ property of steel increases by addition of large amount of silicon in it.
- 'Flare tower' used in industry is meant for
- The substance used as a smoke screen in warfare is
- Which of the following is resistant to the action of both heat & chemicals?
- The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
- The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation…
- Removal of non-condensable from steam or other vapour is termed as the __________ process.
- Addition of __________ to steel does not help in improving its machinability.
- 'Ice point' is designated on Fahrenheit temperature scale by
- Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an…
- Which of the following varies as the square root of oil pressure during atomisation of fuel oil through…
- A solar cell converts the sunlight directly into __________ energy.
- Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is…
- Maximum hardenability of steel depends upon its
- One of the methods of purification of leach liquor is ion exchange, which involves
- Which of the following materials does not form adherent oxide film on surface?
- Stainless steel is welded using
- Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about
- Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
- The refrigerant freon-12 is chemically
- The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
- Hot & cold working of material causes its __________ deformation.
- The most important consideration, while designing the refrigeration system of an aircraft is that the…
- A compact estimate about the amount of materials handling between various work stations is obtained…
- Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.