Master Engineering with Fun Quizzes & Brain Teasers!

A trailer is most likely to jackknife when it is ... 1. loaded to full capacity2. overloaded3. empty
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What is the emergency air line for? 1. To engage the trailer brakes in case of air pressure loss2. To have extra air pressure in case you need it3. To engage the front brakes of the tractor in case of an emergency
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The tractor protection valve will close and the trailer _______ brakes will come on when there is a major leak in the brake line. 1. parking2. service 3. emergency
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When you are uncoupling a loaded trailer, lower the landing gear until it ... 1. reaches the ground2. makes firm contact with the ground 3. makes contact with the ground, and leave the trailer off the fifth wheel
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After you have coupled the trailer, you should start to raise the landing gear by using 1. low gear2. high gear3. intermediate gear
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when drafting as lift or friction loss in hard intake hose is increased, water supply capability of the pump: select one: a. increases. b. decreases. c. remains the same. d. may either increase or decrease.
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technician a says that you should always use thick leather gloves when attempting to trace a blind leak in hydraulic hose. technician b says that hydraulic pinhole injection can take place in flesh without the knowledge of the injured person. who is correct?
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T/F: Carbide tools come in a variety of grades. Grade is based on the carbide wear resistance and toughness.
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When a cutting fluid becomes rancid and has a bad odor, what should be done?
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For grinding steels, the most widely used abrasive is
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T/F: When a milling cutter is sharpened, the primary clearance is ground first.
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In adjusting a workpiece mounted on dead centers:
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Set the table stops to have an overrun at each end of the workpiece. The amount of overrun where possible is:
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1) Write a method to compute the average of an int array and return the value as a double. The int array and the number of elements in the array are both passed as parameters to the method in that order.
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2) The length operator can be used to control a for-loop that iterates through each element of an array, as infor(int j=0; j
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9) Explain how to alter the Selection Sort algorithm so that it sorts in descending order instead of ascending order.
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10) Write an insertion sort method to sort an array of String values (instead of an array of int values). Assume the array is an instance variable of the current class called list, and number is an int instance variable that stores the number of elements currently stored in list.
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8) Write a set of code to create a two-dimensional 10x10 array and initialize every element to be the value of i j where i and j are the two indices (for instance, element [5][3] is 5 3 = 15).
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12) Assume xArray and yArray are equal lengthed arrays of int values storing num items (num is also an int). Write a paint method for an Applet that will draw a Polygon shape using this information. Assume xArray, yArray and num are all instance data of the Applet.
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11) Write a method that takes an array of Strings as a parameter and the number of elements currently stored in the array, and returns a single String that is the concatenation of all Strings in the array.
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13) Write a method to output all elements of a two-dimensional array of int values as a table of rows and columns. Use "\t" to get elements to line up properly. The method is passed the two-dimensional array and two int values that denote the number of both dimensions (rows followed by columns).
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17) Write code to create an ArrayList and fill it with the integer values 1 through 10.
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16) Write a foreach loop that prints, on the same line, every element in the array of chars a.
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Rebalance the following AVL tree after inserting G. You need to show the middle step if it happens. Briefly explain the operations. (25 points) D B F Z A E 1 J G
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