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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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Rylee Wilkinson

Engineering

Supercharging is the process of (a) Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere (b) providing forced cooling air (e) injecting excess fuel for raising more load (d) supplying compressed air to remove combustion products fully. (e) raising exhaust pressure.

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Engineering

Laws that protect businesses involve

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Engineering

What are the three basic components of a limit switch

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Engineering

If a law enforcement officer stops a vehicle for a traffic violation and finds a front-seat passenger 18 years of age or older not wearing a safety belt, a safety belt violation will be charged to:

The front-seat passenger

Neither the driver nor the front-seat passenger

Both the driver and the front-seat passenger

The driver

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