-Identify hazards using METT-TC factors is the first step.
Answer:
In order to use all the paint in a paint mixture in the same ratio of 1:5, the painter needs 2.4 ounces of paint thinner
Explanation:
The given parameters are;
The number of parts of thinner used to create 5 parts of paint mixture = 1 part
The amount of paint the painter has = 12 ounces
The amount of thinner is given by the relation;
Ratio of thinner to paint mixture = 1:5
Which gives, 1 part of thinner is required for 5 parts of paint mixture
1/5 parts of thinner is required for 1 part of paint mixture
Therefore, 12/5 or 2.4 parts of thinner will be required for 12 parts of paint mixture
Which gives;
2.4 ounces of thinner will be required for 12 ounces of paint mixture
Therefore, in order to use all the paint in a paint mixture in the same ratio of 1:5, the painter needs 2.4 ounces of thinner.
1. Critical thinking, examines all sidesof an issue, reflecting on pst experiences, and listening to what the other group members have to say.
2. Communication, allows all members to have an effective and sufficient work done together. It promotes trust and ideas for team empowerment.
3. Collaboration, with collaboration you express your thoughts in an open minded way and allow other people’s ideas relate to one another. It uncovers different perspectives and experiences from each member
Answer:
A) Cm = 2.232 s/mm²
B) Time taken to solidify = 74.3 seconds
Explanation:
(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³
There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²
So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm
Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;
Cm = 155/(8.333)²= 2.232 s/mm²
(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;
Volume of cylinder is;
V = (πD²L) /4
So,V = (π x 30² x 50)/4 = 35,343mm³
Surface area of cylinder is;
A = (2πD²)/4 + (πDL)
Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²
Volume/Area is;
V/A = 35,343/6126 = 5.77 mm
Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²
Since Cm =[Tts] /(V/A)²
Making Tts the subject, we have;
Tts =Cm x (V/A)²
Tts = 2.232 x (5.77)² = 74.3 seconds
