posted 1 years ago

a) Using the appropriate approach allocate the tolerances for 'GO' and ʼNOT-GO' ends of a snapgauge for controlling diameter of a shaft ØAB . Support your answer with all relevant tolerance diagrams.Table 02

b) Using the diagram from part (a) showing the allocation of Limit Gauge tolerances, give an example of a situation where a shaft with a particular actual dimension is made in the tolerance, but when inspected by this Limit Gauge (worn, but still within the gauge tolerance),might be misjudged as bad. Plot it on the tolerance diagram.

posted 1 years ago

1. Determine tolerances of the mating parts based on the manufacturing methods

2. Calculate the number of groups

3. Calculate upper and lower limit deviations for the hole and the shaft

4. Draft the tolerances, indicating the groups

5. Calculate maximum and minimum interference / clearance for each group

posted 1 years ago

1. Allocate tolerances using Worst Case – Average Tolerance Grade Method

2. Allocate tolerances using RSS method

posted 1 years ago

posted 1 years ago

1. BOD 5of the effluent suspended solids is 70% of the allowablesuspended solids concentration.

2. Growth constant values are estimated to be: Kg = 100 mg/L BOD5;%3Dkd = 0.025 dl; Hm = 10 d'; Y= 0.8 mg VSS/mg BOD5 removed.%3D

3. The design MLVSS is 3,000 mg/L.

posted 1 years ago

posted 1 years ago

a)What control charts are more suitable to monitor the mean and variability of the process?

b) Construct the control charts and set the valid control limits

c) Is the process in control?

posted 1 years ago

Use the analysis of variance to test the hypothesis that different concentrations do not affect the mean tensile strength of the paper.

posted 1 years ago

(a) Set up x-bar and R charts on the process. Is the process in statistical control?

(b) Estimate the process standard deviation using the range method.

(c) If specifications are at nominal +-100, what can you say about the capability of this process?

(d)Calculate the PCR Cp

posted 1 years ago