OSHA's Construction Safety and Health Regulations require that the sides of all earth embankments and trenches over 6'0"deep be adequately protected by a shoring system or by cutting back the sides of the excavations to a safe angle.

Answer the following statement true (T) or false (F)


False

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An automobile insurance company divides customers into three categories, good risks, medium risks, and poor risks. Assume that 70% of the customers are good risks, 20% are medium risks, and 10% are poor risks. Assume that during the course of a year, a good risk customer has probability 0.005 of filing an accident claim, a medium risk customer has probability 0.01, and a poor risk customer has probability 0.025. A customer is chosen at random.

a. What is the probability that the customer is a good risk and has filed a claim? b. What is the probability that the customer has filed a claim? c. Given that the customer has filed a claim, what is the probability that the customer is a good risk?

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What is regenerative braking?

What will be an ideal response?

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(a) Plot the grain-size distribution curve for this sample. (b) Determine D10, D30, and D60. (c) Calculate the uniformity coefficient, Cu. (d) Calculate the coefficient of gradation, Cc.

Following are the results of a sieve analysis:


What will be an ideal response?

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Describe how a variable displacement (or displacement on demand) lifter works to deactivate a cylinder.

What will be an ideal response?

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