Process Equipment and Plant Design Questions

• 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, σ = yield strength and E = modulus of elasticity)
• Pick out the wrong statement.
• for a Tee (used as elbow, entering run) would be around
• A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.
• The distance between the centre of a rivet hole to the nearest edge of the plate is called
• Vertical storage vessels are never supported by __________ support.
• Power required for agitation depends upon the
• Wind load consideration in the design of a support can be neglected, when the vessel is
• Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always
• Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.
• The ratio of lateral strain to linear strain is termed as the
• Frame thickness in the plate and frame filter press is normally in the range of __________ inches.
• In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)
• Filtration rate is affected by the
• __________ heat exchanger is also known as 'hair pin type' exchanger,
• Optimum economic pipe diameter for fluid flow is determined by the
• Pick out the wrong statement pertaining to shell and tube heat exchanger.
• Tube height in a calendria type evaporator is normally less than __________ metres.
• A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is
• 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