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Chapter 6 Boxes, Fittings, and Covers12910. True or False? The NEC requires ground- ing bushing wherever conduit enters nonthreaded opening on a box 11. List the ...

Question

Chapter 6 Boxes, Fittings, and Covers12910. True or False? The NEC requires ground- ing bushing wherever conduit enters nonthreaded opening on a box 11. List the four types of boxes (not shapes) and describe what each is used for: 12. Describe how boxes can be mounted to building components and to each other: 13. True or False? It is acceptable to stuff as many wires as possible into a junction box. 14, True Or False? A plaster ring is used to keep wet plaster from seeping into an elect

Chapter 6 Boxes, Fittings, and Covers 129 10. True or False? The NEC requires ground- ing bushing wherever conduit enters nonthreaded opening on a box 11. List the four types of boxes (not shapes) and describe what each is used for: 12. Describe how boxes can be mounted to building components and to each other: 13. True or False? It is acceptable to stuff as many wires as possible into a junction box. 14, True Or False? A plaster ring is used to keep wet plaster from seeping into an electrical box:



Answers

Determine whether the statement is true or false. Explain your answer. The method of cylindrical shells is a special case of the method of integration of cross-sectional area that was discussed in Section $6.2 .$

Okay, We know the inter quartile range is found by finding the difference between the first portal in the third quarter mile. In other words, in the text book, you'll see the like. You are intercultural range is listed. The equation for this is court trial. Three minors Court Trial one. This means the start of the box on the left hand side indicates the first court trial on the end of the box on the right hand side indicates the third quarter mile, so this statement is going to be true.

Okay, so this question says 500 girls are made at random from a box with 60,000 zeros and 20,000 words. So now we have a series of tour of those questions with explanations. So again, 500 brother made so off party, it says, sure falls the expected value for the percentage of ones. Among the draws is exactly 25% and that is true. You're always right to ref. That is true. Um, because, uh, we have 20 dozen ones and we have 80,000 cards total. Well, we have 80,000 numbers total, so that equals 25%. So are expected value for the number of one's is exactly 25% for part B. It says the expected value for the percentage of ones among the draws is around 25% give or take 2% or soaked. And that's false because expected value is always who exact number. It's not like around encumber, so that doesn't really make sense for Party of, since the percentage of one's mother draws will be around 25% give or take 2% 10 or so. So let's see if the first part of That's definitely right. It will be around 25% because that's our expected value. Um, it's fun to confirm the second part. We just can't find the standard here, which equals the probability of, um, getting a one, which is 10.25 times two times one minus the probability of getting a one so one minus 10.25 and were given in the question that there are 500 draws. So once you simplify this out on you find that the standard here is about 2%. So that's so that makes Parsi true. Um, that makes the part that says, give or take 2% or so to be true. So yeah, living on to party It says the percentage of ones and when the drugs would be exactly 25%. And that's false because we just found part C to be true, which says around 25% give or take 2% or so. There's no way we know for sure that will be exactly 25%. Party says the percentage of ones in the box is exactly 25% I and yeah, that's true because there's 20,000 ones and 80,000 numbers, which is exactly 25%. I'm sorry. So that makes it true. And then for f representative ones in the boxes around 25% giver to give or take 2% or so. Well, we just found it to be true, which says they're exactly 25% once in the box, so part of past you false.

Yeah, it's given the classroom this problem or frequency this solution. We have to find whether the statement is drawing forwards given in a frequency distribution. The class with is the distance between the lower and the upper limit off a class. So this statement ISS bots. Yes, as a class with is a difference between the lower or upper limit off consecutive classes, you know?

If we think of a number line with zero negative one negative two and so on, we'll get to negative nine. Negative 10. Negative 11. We'll see that negative 11 is actually to the left, so it is less than negative nine. So the statement negative 11 is greater than negative. Nine is false.


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