A. Strain
B. Stress
C. Modular ratio
D. None of these
Related Mcqs:
- Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, ζ = yield strength and E = modulus of elasticity) ?
A. E
B. ζ
C. ζ/E
D. E/ζ - 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. 10-15 - Rotary driers are most economically designed for the number of heat transfer units (HTU) from _________________?
A. 0.01 to 1
B. 1.5 to 2.5
C. 5 to 10
D. 10 to 20 - In distillation columns, bubble caps are held in place over trays by ________________?
A. Rivets
B. A hold down bar
C. Bolts
D. Both B. and C. - The length of straight rectangular weir used on cross-flow trays is generally ________________ the column diameter ?
A. 0.6-0.8 times
B. Equal to
C. Twice
D. 2 ft irrespective of (for column > 3 ft diameter) - The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is ________________ cms?
A. 5
B. 15
C. 7.5
D. 50 - ________________ liquor is best handled in a long tube vertical evaporator ?
A. Foamy
B. Scaling
C. Viscous
D. Salting - Cylindrical pressure vessels in horizontal condition is generally supported on a ________________ support?
A. Lug
B. Skirt
C. Saddle
D. Guy wire - In a thin cylindrical shell, the hoop stress is ________________ stress?
A. Radial
B. Circumferential tensile
C. Compressive
D. Longitudinal - 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 – 3
