Category: Uncategorized

Describe the differences between a 2-bolt main, 4-bolt main, a cross-bolt main, and a bed plate. List which is the weakest design, and which is the smallest.

Describe three measurements made when inspecting generator oil pumps.

Read the following 0-1″ micrometer. Answer to the closest .001″. You do not need to add the ” to your response. Note: Two lines are exposed.

Describe Core Plugs and their use, and describe what fluid will typically leak if one goes bad.

Thoroughly explain the correct process of using Plastigauge, and describe what measurement we use. 

Describe why Torque-to-Yield bolts cannot be reused once they are loosened, and describe how they are torqued down differently than a standard bolt.

What are the Counterweights ton the crankshaft used for (be thorough)?

Explain how air enters the combustion chamber on Naturally Aspirated (Normally Aspirated) engines.

Upon fitting a Logistic Regression Classifier on an email data set, we obtained the probability of an email to be a junk (event) or not (non-event) for each of the data samples. Below is a figure that shows the distribution of the emails belonging to these classes in the data set. If the threshold T is set at 0.5, as shown in the above figure, what will the Receiver Operating Characteristic (ROC) curve look like? Select the correct answer from a, b, or c below:

You are given a training data set consisting of 10 data points with a single predictor variable, x, and a numerical response, y, i.e., 10 () pairs. Upon fitting a simple linear regression model to this data set, you obtain an R2 value of 0.96. You also fit a cubic regression model to this data set. If the true relationship between the predictor variable and the numerical response variable is of the form: (i.e., quadratic), where takes a very small value, which of the following method would cause an overfitting on the training data set? Choose the correct answer from the following: