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Unit plot plans are generally defined by imaginary lines called battery limits. Battery limits are used to establish a unit's boundaries. Unit plot plans show the location of all the buildings, equipment, pipe racks, and other items of importance in the unit. True north and plant north are also shown. The purpose of this drawing is not to show detail, but rather, the arrangement of various components to be erected in the unit.
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What is fatigue limit?
Fatigue limit which can also be known as an endurance limit or a breaking limit. A fatigue limit is a measure of the totalamount of stress a material can repeatedly withstandor tolerate before failing or breaking. All categories of materials have some kind of fatigue load limit. Materials are tested carefully to make sure that they meet standards for use in specialised products, anapproach that aids to prevent losses or damages arising from using materials that are unsuitablefor the construction of the finished product.
What are DSS Pipes?
Duplex Stainless Steel pipes are using when the corrosion allowance is exceed the limit to do Stainless Steel pipes. The maximum corrosion allowance allowed in a Design life (7000 cycle / 20 years) is 3 or 6 mm. This having a high yield strength than the S.S pipes
What is the Limit switches working principle?
Limit switch is one type Of " Contact Sensor" , In that there is Normally Open Contact & Normally Close Contact, In limit switch there is Plunger it is Directly Connected to NO & NC Contact if we press the plunger NO contact become NC & NC contact become NO, Working Principle same as Contactor ( DOL starter ) main difference is in contactor There is Coil to attract the Plunger But In Limit Swict Plunger is Operated Mecanically.Limit Switches is used mainly for Safety Purpose & to take Feed back for PLC in Automation industries........Source(s):In My Plant I have installed limit Switches.. A limit switch is a switch, usually mechanical, that is actuated by a moving part of some machine. Its operation is much like any other switch in that there are contacts that move when a plunger or lever on the outside of the switch is pushed. Internally there is an over center spring mechanism that snaps the switch open or shut in response to a gradual motion of the plunger or lever.Many limit switches have three terminals. One is the normally closed contact, another the normally open contact, and the third is the common that switches between these two as the mechanism is moved.
What is hardness of 2062 mild steel in rockwell?
IS 2062 standard does not specify any Hardness Limit for the material. As such, even the equivalent SA36 does not specify anything on Hardness. But this being a P No.1 material in properties, the commonly accepted Hardness limit is 200HB or 93 HRB. Again there can be variation based on specific application/project requirements.
How do you distinguish yield point and elastic limit?
On a stress strain curve the elastic limit is the point where the straight portion curve first starts to curve. When load is removed strain will return to zero. The yield point is a point on the curve just beyond the elastic limit. When load is removed strain will not return to zero. It will return approximately as a straight line parallel to the original, and have an offset strain value. The yield point offset is arbitrary but usually defined as 0.2% (.002 permanent strain) as most common strain devices can measure that amount.
What is LSD in civil engineering?
Limit state design
What does identify criteria mean in engineering?
constraint is a limit to design process and criteria is want
How do you convert inch dia. to meters?
inch dia and inch meter are the terms most frequently used in piping they are used to measure fabrication and piping erection work performance in a unit i.e. within battery limit due to large no bends and fittings ratio of inch dia and inch meter is more than when piping is in between battery limit. ideal value is = ((n+1)/6.48n) if there is no wastage as pipe spools are of standard size i.e. 6.48m(21feet)
Can limit state method be used for design of water tanks?
Yes we can use limit state design for water tank design....
Why liquid limit and plastic limit are important?
The Atterberg limits of a soil are used as an integral part of several engineering classification systems to characterize fine-grained soils. Also these limits are used directly in specifications for controlling soil for use in fills, and in semi-empirical methods of design. A wide variety of engineering properties of soils have also been correlated to the liquid limit, plastic limit, and plasticity index of soils (i.e. Compressibility, Permeability, and Strength).
What is civil engg?
civil engineering means familiar with construction , designing , removal of problems with construction , concrete design, more flexible requirement providing to customer as specified by that and with time limit and funds provided etc . may called civil engineering.
Review question and answer on materials engineering?
liquid limit
What is limit state design?
It is a constraint
How does having constraints placed on the design change the engineering design process?
The change between design and engineering process is long. The process of this is time, quality and budget.
Which is economical design out of Limit state and working stress?
limit state method
What are the principles of limit state method of RCC design?
in reinforced concrete design
What is the meaning of battery in battery limits in chemical engineering?
"Battery limits" in general simply outlines the limits of the work to be done by the engineer. If a refinery asks an engineer to carry out some work on the refinery, the battery limits need to be defined in order to determine what the engineer is responsible for and what he is not responsible for. In the case of a refinery, for example, the battery limits might include sizing and costing a new heat exchanger. It could include the cost of utilities, installation, electrical needs, maintenance. Outside the battery limits might be how the utilities are supplied, how this heat exchanger is going to be delivered, who is going to build the exchanger etc.
