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Engineering

Unit 6 - Quiz 1

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3. When testing for loose Wheel Bearings you should:

A. Testing is inconclusive, just replace them.

B. Rock the wheel back and forth from the 3:00 and 9:00 positions

C. Turn the steering wheel 45 degrees in each direction

D. Rock the wheel back and forth from the 12:00 and 6:00 positions

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Engineering

Is a gas turbine a heat engine?

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Engineering

Write a single statement that prints outsideTemperature with 2 digits in the fraction

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Engineering

An airplane starts from rest, 6050 ft down a runway at uniform accelerationthen takes off with a speed of 150mi / h. It then climbs in a straight line with a uniform acceleration of 2 ft/s^ 2 until it reaches a constant speed of 195mi / h. How far has the plane traveled when it reaches this constant speed?

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Engineering

Which of the following should NOT be done to keep people from slipping on floors?

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Engineering

1. What types of fire can plain water be used on?

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Andrew Fletcher

Engineering

Pressurized steam at 400 K flows through a long, thin-walled pipe of 0.6-m diameter. The pipe is enclosed in a concrete (stone mix) casing that is of square cross section and 1.75 m on a side. The axis of the pipe is centered in the casing, and the outer surfaces of the casing are maintained at 300 K. What is the rate of heat loss per unit length of pipe, in W/m

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Engineering

If traffic is approaching on your left and there is a child riding a bike to your right, you should:

A. Move closer to oncoming traffic

B. Move closer to the bicyclist

C. Pull over until the road is clearer

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Urijah Woodward

Engineering

Alloy parts were cast with a sand mold that took 160 secs for a cube-shaped casting to solidify. The cube was 50 mm on a side. (a) Determine the value of the Chvorinov's mold constant. (b) If the same alloy and mold type were used, find the total solidification time for a cylindrical casting in which the diameter = 25 mm and length = 50 mm.

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Engineering

Critically analyse a common engineered product in terms of the materials used, the processes required to manufacture the product, and the historical context of the material leading to its present form

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Salvador Hoffman

Engineering

Given an unsorted array of distinct positive integers A[1 ... n] in the range between 1 and 10000 and an integer i in the same range. Here n can be arbitrary large. You want to find out whether there are 2 elements of the array that add up to i. Give an algorithm that runs in time O (n).

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Engineering

A hydraulic power unit is sometimes referred to as a?

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Engineering

8.21 In the final stages of production, a pharmaceutical is sterilized by heating it from 25 to 75°C as it moves at 0.2 m/s through a straight thin-walled stainless steel tube of 12.7-mm diameter. A uniform heat flux is maintained by an electric resistance heater wrapped around the outer surface of the tube. If the tube is 10 m long, what is the required heat flux? If fluid enters the tube with a fully developed velocity profile and a uniform temperature profile, what is the surface temperature at the tube exit and at a distance of 0.5 m from the entrance? Fluid properties may be approximated as rho = 1000 kg/m3, cp = 4000 J/kg-K, μ = 2 * 10-3 kg/s-m, k = 0.8 W/m-K, and Pr = 10.

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Engineering

Which of the following can improve your car's gas mileage?

A. Equipment racks

B. Cargo carriers

C. Sports team flags

D. Car aerodynamics

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Engineering

Which of the following describes a logic bomb?

a rogue piece of code in a system activates on a certain date

a piece of code replaces the boot instructions

the cookie tracker is exploited to note your browsing habits

a piece of code hidden in a spreadsheet

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