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61
In a cylinderical vessel subjected to internal pressure, the longitudinal stress $${\sigma _{\text{L}}}$$ and the circumferential stress, $${\sigma _{\text{h}}}$$ are related by
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Answer: Option A
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62
A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.
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Answer: Option B
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63
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.
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Answer: Option A
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64
Vapor velocity in a distillation column for non-foaming mixture is in the range of __________ times the flooding velocity.
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Answer: Option B
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65
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.
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Answer: Option B
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66
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.
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Answer: Option A
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67
The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.
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Answer: Option A
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68
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.
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Answer: Option C
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69
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.
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Answer: Option C
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70
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.
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Answer: Option B
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