Engineering

Coursework devoted to developing computer skills can be used to satisfy the engineering design requirement. Group of answer choices True False
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Technician A says each manufacturer uses the same speed sensors to ease diagnostics. Technician B says each manufacturer and sometimes different ABS systems use different diagnostic procedures. Who is correct
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Most sheet metalworking operations are performed as (a) cold working, (b) hot working, or (c) warm working
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Imagine yourself as a test engineer at a leading semiconductor company. Your manager wants you to reduce the scan test time for an integrated circuit, which has a single long scan chain, by a factor of 10. However, the designers are reluctant to add additional scan pins by implementing ten scan chains. What alternative techniques can you and the designers explore to reduce test time
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What happens if you add 1 to an unsigned integer that is already at its maximum possible value?A. It overwrites neighboring values B. It crashes the programC. It becomes -1D. It becomes 0
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Technician A says primary vibration is created by the slight differences in the inertia of the pistons between top dead center and bottom dead center. Technician B says secondary vibration is a strong low-frequency vibration caused by the movement of the piston traveling up and down in the cylinder. Who is right
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T/F we do not use the salvage value in the calculation of depreciation charge using db and soyd.
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Many manufacturers allow the maximum brake drum diameter to be ___________________________ over standard size.
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Assume a pump efficiency of 100% for the brake power calculation. NOTE: Be sure to draw the velocity triangles for the inlet and outlet DISCUSSION: How would a 50% increase in impeller rotational speed, with the same flowrate and blade angle, change the results for this problem?
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Water at 158C is to be heated to 658C by passing it over a bundle of 4-m-long, 1-cm-diameter resistance heater rods maintained at 908C. Water approaches the heater rod bundle in normal direction at a mean velocity of 0.8 m/s. The rods are arranged in-line with longitudinal and transverse pitches of SL 5 4 cm and ST 5 3 cm. Determine the number of tube rows NL in the flow direction needed to achieve the indicated temperature rise.
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Is a constructor responsible for the initialization of an object's instance fields?
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A flow meter is attached in a hydraulic line that measures 27 gal/min. The line has an inside diameter of 2.5 in. Find the flow velocity where the fluid passes the meter. (in/min)
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You are an engineer in an electric-generation station. You know that the flames in the boiler reach a temperature of 1275 K and that cooling water at 300 K is available from a nearby river. What is the maximum efficiency your plant will ever achieve
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A PISTON -CYLINDER COMPRESSOR TAKES R-410A AS SATURATED VAPOR 600 kPa AND COMPRESSES IT IN A REVERSIBLE ADIABATIC PROCESS TO 3000 kPa. FIND THE FINAL TEMPERATURE AND SPECIFIC WORK COMPRESSION
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Compute the tensile strength in MPa and ductility of (%EL) of a cylindrical brass rod if it is cold worked such that the diameter is reduced from 15mm to 13mm. (b) (10 points) Similarly compute the tensile strength in MPa and ductility of (%EL) of a cylindrical brass rod if it is cold worked such that the diameter is reduced from 15mm to 12.2 mm. (c) (5 points) How does the %CW affect the tensile strength and ductility of this cylindrical brass rod
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Round aggregates will pump more easily than angular aggregate (max size aggregate should be no more than ______ the diameter of the line)
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Python 3Sum Positive FloatsWrite a program that reads in an arbitrary number of floating point values and then prints the sum of all the positive values entered, rounded to three decimal places. The value 0 will indicate the end of input. Note that negative input values should not be added to the sum.Input Format For Custom TestingEach line of input will contain a floating point value, and the last line of input will contain the number 0.Sample Case 1Sample Input For Custom Testing3.52-17.92350Sample Output33.500Sample Case 2Sample Input For Custom Testing0-----------------------------------------------------------------------------------Collatz ConjectureThe Collatz Conjecture is a conjecture in mathematics that concerns a sequence defined as follows: start with any positive integer n. Then, each term in the sequence is obtained from the previous term as follows: if the previous term is even, the next term is one-half the previous term. If the previous term is odd, the next term is 3 times the previous term plus 1. The conjecture is that no matter what the value of n is, the sequence will always reach 1. For example, the Collatz sequence starting from 3 is 3, 10, 5, 16, 8, 4, 2, 1 and it has a length of 8, since there are 8 terms in the sequence. Write a program that reads in the value of n and prints out how many terms are in the Collatz sequence starting with n.Input Format For Custom TestingThe only line of input contains the positive integer n.Sample Case 1Sample Input For Custom Testing3Sample Output8Sample Case 2Sample Input For Custom Testing1Sample Output1Sample Case 3Sample Input For Custom Testing6Sample Output9Sample Output0.000Sample Case 3Sample Input For Custom Testing3.14159-20-420-0.0040Sample Output3.142
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The minimum number of 20-amp, 277-volt, lighting circuits required for a 150,000 ft2 department store is ___. The actual connected lighting load is 400 kVA. Assume breakers are not rated for continuous use.
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Devices _____ for grounding the metallic frames of PV modules and other equipment can be used to bond the exposed metal surfaces of the modules and equipment to the mounting structures.
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a left turn at the intersection depicting sign a would place the aircraft
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Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26oC with a volumetric flow rate of 0.18 m3/s. Refrigerant exits at 9 bar, 70oC. Changes in kinetic and potential energy from inlet to exit can be ignored. Determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kW.
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The design engineer specifies a concrete strength of 4500 psi. Determine the required average compressive strength for a plant with extensive history of producing concrete with a standard deviation of 450 psi.
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what is the minimum required impedance of a ferrite on the power cabling to enable the product to meet the requirements
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Recall that Problem 2.19 in Chapter 2 presented a nonlinear model of "stick-slip" friction for mechanical systems. This problem will demonstrate how the dynamic response of a simple mechanical system is affected by the choice of the friction force model. The mathematical model of a simple 1-DOF mechanical system is where m is the mass, Fr is the friction force, k is the stiffness (spring) coefficient, is the displacement of mass m from static equilibrium (in m), and Fa() is the applied force. Obtain the dynamic responses using Simulink for the two friction models: 1) Linear viscous friction: Ff -bi 2) Nonlinear stick-slip friction: Ff-UG + (Fst-Fc) exp(-/c)] sgn(x) + bt The system parameters are m-2kg, k800 N/m, b 25 N-s/m, Fst1.2N (stiction force), Fc IN (Coulomb friction force), c = 0.002 m/s (velocity coefficient). The external force Fa(t) is a 15-N step func- tion applied at time t = 0.2 s. The mass is initially at rest in static equilibrium. Plot the dynamic responses ( obtained using both friction models on the same plot. In addition, plot the friction force F) from both simulations on the same plot. Let the total simulation time be 1.8 s and use the fixed-step, fourth-order Runge-Kutta solver (ode4) with a step size of 0.001 s. On the basis of your simulation results describe the differences between the responses with the two friction models.
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