Seamless pipe is made Both B and C From rolled strips formed into cylinders and seam-welded By extrusion & casting into static and centrifugal molds By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing TRUE ANSWER : ? YOUR ANSWER : ?
In the design of a bag filter, the gas temperature is an important consideration, as it affects the Gas density Fibre selection Gas viscosity All of these TRUE ANSWER : ? YOUR ANSWER : ?
Height of the flights in the rotary drier is in the range of 0.5 to 0.6 d 0.02 to 0.05 d 0.08 to 0.12 d 0.2 to 0.5 d TRUE ANSWER : ? YOUR ANSWER : ?
A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the Corner torus section and central dished section Central dished section and corner torus section Central dished section and straight flange section Straight flange section and corner torus section TRUE ANSWER : ? YOUR ANSWER : ?
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter. 1/50th 1/30th 1/10th 1/20th TRUE ANSWER : ? YOUR ANSWER : ?
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation Both B & C Increases economy Does not affect the capacity Increases capacity TRUE ANSWER : ? YOUR ANSWER : ?
The buckling tendency of compression members is always in the direction of the None of these Axis of the load Least radius of gyration Perpendicular to the axis of the load TRUE ANSWER : ? YOUR ANSWER : ?
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes) (D₂² - D₁²)/D₂² (D₂² - D₁²)/D₁² None of these D₂ - D₁ TRUE ANSWER : ? YOUR ANSWER : ?
Cooling water fouling factors vary in the range of 0.001 to 0.003 (kcal/hr. m. °C)⁻¹ (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (W/m².°K)⁻¹ TRUE ANSWER : ? YOUR ANSWER : ?
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the Shell side for large overall heat transfer co-efficient Shell side, if the flow is counter-current and tube side if the flow is co-current Tubes to avoid the expansion of high pressure shell construction Shell side for smaller total pressure drop TRUE ANSWER : ? YOUR ANSWER : ?