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2 years ago

To determine if a product or substance being used is hazardous, consult:__________.

Engineering

1 answer:

qwelly [4]2 years ago

3 0

Answer:

Option B: An MSDS

Explanation:

A dictionary is used to check up the meaning of general words and not for checking if a substance being used is hazardous. Option A is wrong.

MSDS means "Material Safety Data Sheet" and it contains documents with information that relates to occupational health & safety for checking various substances and products. Thus, option B is correct.

SAE stands for Society of Automotive Engineering and their standards pertain to mainly Automobiles. Thus option C is wrong.

EPA guidelines are mainly for checking facility and environmental health and safety compliance. Thus, option D is wrong.

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Can someone please help!

Setler [38]

Answer:

Ask. Identifying and Researching a Need.

Imagine. Developing Possible Solutions.

Plan. Making a prototype.

Create. Testing and evaluating.

Improve. Modifying and Retesting the Solution

Explanation:

went though pltw

8 0

2 years ago

For Laminar flow conditions, what size pipe will deliver 90 gpm of medium oil at 40°F (υ = 6.55 * 10^‐5)?

MrRissso [65]

Answer:

1.693 feet

Explanation:

We have given Q = 90 gpm

We know that 1 cubic feet per second = 443.833 gpm

So 90 gpm will be equal to $\frac{90}{443.833}=0.202\frac{ft^3}{sec}$

Let d is the diameter of the pipe then $V_{avg}=\frac{Q}{A}=\frac{0.2}{\frac{\pi }{4}d^2}=\frac{0.255}{d^2}$

We know that for pipe flow critical Reynolds number =2300

So $\frac{V_{avg}d}{\nu }=2300$

Value of $\nu$ is $6.55\times 10^{-5}$ given in question

So $\frac{0.255\times d}{d^2\times 6.5\times 10^{-5}}=2300$

d=1.693 feet

3 0

2 years ago

Which factors influence changes in consumer demands? check all that apply

hoa [83]

Hello!

The factors that affect consumer demand for a product is the price and the person's income.

If the price of the product increases, the demand for the product will decrease. If the price of the product decreases, then the demand for the product will increase.

Demand is also affected by a person's income. The more money a person makes, the more money he has to spend on the product, which increases demand. If a person makes less money than he did before, demand for a product will decrease because he can no longer afford it.

I hope this helps you! Have a lovely day!

- Mal

8 0

2 years ago

Read 2 more answers

How did engineers help to create a ceiling fan

Gwar [14]

Answer:

The electric ceiling fan was invented in 1882 by engineer and inventor, Philip Diehl. He had earlier invented an electric sewing machine and adapted the motor from this invention to create the ceiling fan. He called his invention the “Diehl Electric Fan” and it was such a success that he soon had many other people competing with him.

Explanation:

5 0

2 years ago

Which of the following describes fibers? a)- Single crystals with extremely large length-to-diameter ratios. b)- Polycrystalline

ElenaW [278]

Answer:

b)Poly crystalline and amorphous materials with small diameter

Explanation:

Fibers have high length to diameter ratio and also have high strength.Generally length of fibers is very high and diameter is very low as compare to length.

Mostly fibers is used to transfer data from one place to another place with help of fiber optical cables.Fiber optic cables is used in telecommunication.In these cables data covert in to the electric single and reach at define location and after data is decode and covert from electric single in to original data.

Fibers poly crystalline and amorphous materials with small diameter.

6 0

3 years ago