1. What's the maximum overall length of the part? 2. What material is used to fabricate the part

Engineering

1 answer:

kiruha [24]3 years ago

8 0

Answer:

1. The maximum length overall length of the part is 4 inches

2. The material with which the part is fabricated is 0.25 inch thick Hot Rolled Steel

Explanation:

The information given in the drawing are;

The angle of projection of the drawing = Third angle projection

The thickness of the material = 0.25" plate

The material with which the part is fabricated = 0.25 inch thick HRS

HRS is the acronym for Hot Rolled Steel

Therefore;

The material with which the part is fabricated is 0.25 inch thick Hot Rolled Steel

The scale of the drawing = 1:1 = which is 1 is to 1 drawing

The maximum length overall length of the part, l = 4 units

By visually testing the 1:1 scale drawing measurements of 4 units is comparable 4 inches measurement with an online ruler

Therefore;

The maximum length overall length of the part, l = 4 inches

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A lake has a carrying capacity of 10,000 fish. At the current level of fishing, 2,000 fish per year are taken with the catch uni

arlik [135]

Answer:

The population size would be $p' = 5000$

The yield would be $MaxYield = 2082 \ fishes \ per \ year$

Explanation:

So in this problem we are going to be examining the application of a population dynamics a fishing pond and stock fishing and objective would be to obtain the maximum sustainable yield and and the population of the fish at the obtained maximum sustainable yield, so basically we would be applying an engineering solution to fishing

So the current yield which is mathematically represented as

$\frac{dN}{dt} = \frac{2000}{1 \ year }$

Where dN is the change in the number of fish

and dt is the change in time

So in order to obtain the solution we need to obtain the rate of growth

For this we would be making use of the growth rate equation which is

$r = \frac{[\frac{dN}{dt}] }{N[1-\frac{N}{K} ]}$

Where N is the population of the fish which is given as 4,000 fishes

and K is the carrying capacity which is given as 10,000 fishes

r is the growth rate

Substituting these values into the equation

$r = \frac{[\frac{2000}{year}] }{4000[1-\frac{4000}{10,000} ]} =0.833$

The maximum sustainable yield would be dependent on the growth rate an the carrying capacity and this mathematically represented as

$Max Yield = \frac{rK}{4} = \frac{(10,000)(0.833)}{4} = 2082 \ fishes \ per \ year$

So since the maximum sustainable yield is 2082 then the the population need to be higher than 4,000 so in order to ensure a that this maximum yield the population size denoted by $p'$ would be