(Le/D) for couplings and unions would be_______________?
(Le/D) for couplings and unions would be_______________?
A. 60
B. 200
C. 350
D. Negligible
Similar Posts
The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?
The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?A. Axial tensile stress in the pipe
B. Forces exerted by static and dynamic action at bends
C. Circumferential pipe-wall tension
D. Temperature stressesPressure drop per tray in the atmospheric distillation column is about ________________ psi?
Pressure drop per tray in the atmospheric distillation column is about ________________ psi?A. 0.01 – 0.5
B. 0.07 – 0.12
C. 0.5 – 1.0
D. 1 – 3Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?
Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?A. 1.5-2.5
B. 3.5-5.5
C. 7.5-10.0
D. 10-15High pressure fluid in a shell and tube heat exchanger should preferably be routed through the________________?
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the________________?A. Tubes to avoid the expansion of high pressure shell construction
B. Shell side for smaller total pressure drop
C. Shell side, if the flow is counter-current and tube side if the flow is co-current
D. Shell side for large overall heat transfer co-efficientWhen one of the fluids is highly corrosive and has fouling tendency, it should_____________________?
When one of the fluids is highly corrosive and has fouling tendency, it should_____________________?A. Preferably flow inside the tube for its easier internal cleaning
B. Preferably flow outside the tube
C. Flow at a very slow velocity
D. Flow outside the tube, when the flow is counter-current and inside the tube when the flow is
co-currentIn a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?
In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?A. Results in higher shell side pressure drop
B. Can accomodate less number of tubes for a given shell diameter
C. Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell
side fluid
D. Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer
co-efficient