Reference no: EM13973972
1. FIGURE 1 shows a pneumatic circuit diagram used for air supply and exhaust in an automatic controlsystem.
(a) Name all symbols (including pipelines) used in thesystem.
(b) Number the ports of eachDCV.
(c) Classify the sections of the components in thecircuit.
(d) State how the systemworks.
(e) State the functionsofvalves 1 and 2.
2. FIGURE 2 shows a pneumatic circuit in which four actuators are controlled.
(a) State the sequence in which the cylinders operate on the operation of the startvalve.
(b) Show, with the aid of a schematic diagram, how an electronic controller could be included in the circuit to control the sequence of cylinderoperations.
3. Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A - B + B - A+. The cylinders should park in the positions B - A + when the start switch is in the ‘off'position.
4. Modify the circuit designed for question 3 to provide an emergency stop which will park both cylinders in the extended position (i.e. A + B+).
5. Modify the circuit designed for question 3 to provide a fail safe. The fail safe should:
(a) act in the event of a reduced pressure at inlet to the group selecting valve
(b) park the cylinders in the retractedposition.
6. FIGURE 3 shows a hydrauliccircuit.
(a) State the name and purpose of the components shown in the circuit diagram.
(b) Explain the operation of thiscircuit.
(c) Explain the limitations of this circuit in terms of ‘speedcontrol'.
7. Modify the design of the circuit shown in FIGURE 3 and draw a circuit diagram to provide rotary actuation in both directions using a single direction pump (to replace the bi-directional pump) and providing a means of preventing over-speeding in the case of an overhauling load in both directions.
|
Case write up - doug rauch solving the american food paradox
: This is a case write up. You need to read the case first. And in the write up, you need to answer the following question. What do you recommend and why
|
|
How would eagle variable costing net operating income
: In its first year of operations, Eagle produced and sold 10,000 tables. The tables sold for $120 each. How would Eagle's variable costing net operating income have been affected in its first year if only 9,000 tables were sold instead of 10,000?
|
|
Are toc and six sigma really different
: Six Sigma and TOC that presents another philosophy called Six Sigma. Are TOC and Six Sigma really different? If so, discuss the differences. Which of the two philosophies do you prefer for your company? Why
|
|
Find the convolution of function h with function x
: Use this result to find the convolution of h(t) with x(t) where h(t)= e-2t u(t) and x(t) as Wore below, by fire performing the convolution h(t)*u(t) and then cenvolving this with x'(t).
|
|
Design and draw a circuit using the cascade system
: How an electronic controller could be included in the circuit to control the sequence of cylinderoperations - State the sequence in which the cylinders operate on the operation of the startvalve.
|
|
What is the legal definition for sexual harassment
: What is the legal liability for 1995 Auto Corp. if the EEOC investigation finds the charge to be factual with employer knowledge of the events? Consider the options of mediation versus litigation with regard to organizational cost.
|
|
How you would assess demand
: Referring to the same novel health care product or service you came up with last week (Discussion 2, Part 2), determine how you would assess demand for and the cost to produce your product or deliver your service
|
|
Write a c++ program that determines density of a materials
: Write a C++ program that determines the density of a materials, given the radius and mass of a sphere. This is a assignment similar to the exercise wc did in the lab last Friday.
|
|
Stephen company produces a single product
: Stephen Company produces a single product. Last year, the company had 20,000 units in its ending inventory. During the year, Stephen's variable production costs were $12 per unit.
|