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3 years ago

When working with paint, enamel, or sealant why is it important to have a ventilated area?

Engineering

1 answer:

rewona [7]3 years ago

7 0

Answer:

The reason is that paints contain Volatile Organic Compounds VOC, which can lead to long-term health issues.

Exposure to paint fumes can lead to eye, throat, or nose, irritation, which can be soothed by the flow of fresh air.

Paint fumes VOCs inhalation from can cause side effects such as, throat eye, nose irritation, nausea, trouble breathing, and headache

Prolonged extensions to VOCs can lead to nervous system, kidneys, and liver damage.

As such it is important to have the paint work area well ventilated at all times.

Explanation:

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Define the Artist class in Artist.py with a constructor to initialize an artist's information. The constructor should by default

mina [271]

Answer:

Explanation:

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4 years ago

A scale model is 4th the size of the pump. Determine the power ratio of the pump and its scale model if the ratio of the heads i

vredina [299]

Given:

size of scale model = 4(size of pump)

power ratio of pump and scale model = 5:1

Solution:

Let the diameter of scale model and pump be $d_{s}$ and $d_{p}$ respectively

and head be $H_{s}$ and $H_{p}$ respectively

Now, power, P is given as a function of head(H) and dischagre(Q)

P = $\rho gQH$ (1)

From eqn (1):

$P \propto QH$

and

$QH \propto \sqrt{H}D^{2}$

So,

$P \propto H^{\frac{3}{2}} D^{2}$

Therefore,

$\frac{P_{s}}{P_{p}}$ = $\frac{D_{s}^{2} H_{s}^{\frac{3}{2}}}{D_{p}^{2} H_{p}^{\frac{3}{2}}}$

$\frac{P_{s}}{P_{p}}$ = $\frac{1^{2}\times 5^{\frac{3}{2}}}{4^{2}\times 1^{\frac{3}{2}}}$

$\frac{P_{s}}{P_{p}}$ = $\frac{5\sqrt{5}}{16}$

${P_{s}}:{P_{p}}$ = ${5\sqrt{5}}:{16}$

8 0

3 years ago

What is the first step in the Design Process *

Gennadij [26K]

Answer:

Define the problem

I hope this helps!

Explanation:

The problem must be know before you can develop and solution, generate concepts, or construct and test a prototype

8 0

3 years ago

During the era of known as the Stone Age, no tools were used and no technology was created.

Shtirlitz [24]

Answer:

stone wheel

Explanation:

it was built around 3500 B.C.

5 0

4 years ago

A sewer pipe 8 inches in diameter can carry 0.662 ft3/s when flowing at a depth of 4 inches.

Rom4ik [11]

Answer:

a) the flow under full capacity is q₂= 1.334 ft³/s

b) the velocity would be v= 3.793 ft/s

Explanation:

a) Since the pipe has 8 inches in diameter but 4 are covered with water flow ( half of a circle in area=A₁) , q₁=0.662 ft³/s then

q₁=A₁*v

then for the same velocity v but area A₂=2*A₁

flow under full capacity= q₂ = A₂*v= 2*A₁*v= 2*q₁=2*0.662 ft³/s= 1.334 ft³/s

b) when flowing at a depth of 4 inches

A₁= (1/2)*(π*D²/4) = π* (1/8)*(8 in)² = 8π in² * (1 ft²/ 144 in²) = π/18 ft² = 0.1745 ft²

then

v=q₁/A₁ = 0.662 ft³/s/0.1745 ft²= 3.793 ft/s

v= 3.793 ft/s

6 0

4 years ago

When working with paint, enamel, or sealant why is it important to have a ventilated area? ​

When working with paint, enamel, or sealant why is it important to have a ventilated area?