Longitundinal stress induced in a thin walled cylindrical storage vessel is PD/6t PD/4t PD/2t PD/3t TRUE ANSWER : ? YOUR ANSWER : ?
__________ of water makes it a widely used coolant in heat exchangers. Low dirt factor High specific heat Low viscosity Low corrosiveness TRUE ANSWER : ? YOUR ANSWER : ?
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre. 1.2-1.5 0.2-0.5 0.4-0.9 0.1-0.2 TRUE ANSWER : ? YOUR ANSWER : ?
The dust collection efficiency of a cyclone separator Is inversely proportional to the mass of the dust particle Is directly proportional to the radius of the dust particle path None of these Decreases with increase in gas flow rate TRUE ANSWER : ? YOUR ANSWER : ?
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if Material of construction is high alloy steel Plain carbon steel and cast iron parts are used Both B & C Wall thickness is > 30 mm TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the __________ stress. Breaking None of these Yield point Ultimate TRUE ANSWER : ? YOUR ANSWER : ?
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness? Hemispherical Conical Flat plate Ellipsoidal (2 : 1) TRUE ANSWER : ? YOUR ANSWER : ?
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always More than geometric mean value Less than arithmetic mean value More than arithmetic mean value Both B & C TRUE ANSWER : ? YOUR ANSWER : ?
Cooling water fouling factors vary in the range of 0.001 to 0.003 (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (kcal/hr. m. °C)⁻¹ (W/m².°K)⁻¹ TRUE ANSWER : ? YOUR ANSWER : ?
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 15-20 35-40 30-35 43961 TRUE ANSWER : ? YOUR ANSWER : ?