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Questions in engineering

[Free] An employer creates an Energy Control Procedure to provide for which of the following? A. LOTO Training B. Record keeping C. Audits and review D. All of the above

[Free] Engineers have just laid a new undersea cable. What prediction can they make about the cable? A. Hypoxic conditions will be created within a large distance from the cable. B. Power flowing through the cable will increase the primary productivity of the area. C. Radiation from the cable will cause marine life to move to other locations. D. The cable will serve as a substrate to which many invertebrates will attach.

[Free] A vehicle has a crimped fuel return line. What effect will this have on 5-Gas Analyzer gas readings? A) O2 increases B) HC decreases C) CO decreases D) NOX stays the same

[Free] Most hot water boilers heat the water up to temperatures of: A. 100°F to 150°F. B. 180°F to 200°F. C. 200°F to 250°F. D. 280°F to 300°F.

[Free] Solve the third-order initial value problem below using the method of Laplace transforms. [tex]y^{\prime \prime \prime}+5 y^{\prime \prime}+2 y^{\prime}-8 y=-32, y(0)=6, y^{\prime}(0)=-13, y^{\prime \prime}(0)=77[/tex] Click here to view the table of Laplace transforms. Click here to view the table of properties of Laplace transforms. [tex]y(t)=[/tex]

[Free] Solve the initial value problem below using the method of Laplace transforms. [tex]y^{\prime \prime}+6 y^{\prime}+8 y=-8 \cos t-7 \sin t, y\left(\frac{\pi}{2}\right)=1, y^{\prime}\left(\frac{\pi}{2}\right)=0[/tex] [tex]y(t)=[/tex]

[Free] If your work exposes you above the PEL, what are you prohibited from doing to maintain safe compliance with the PEL? A. Understanding the engineering controls, work practices, and proper use of personal protective equipment B. Enrolling in a medical surveillance program to monitor your health over time C. Rotating employees to achieve compliance with the permissible exposure limit D. Reporting to your supervisor instances of co-workers performing unsafe acts

[Free] Solve the initial value problem below using the method of Laplace transforms. [tex]y^{\prime \prime}-y^{\prime}-12 y=-2 \cos t-5 \sin t, y\left(\frac{\pi}{2}\right)=1, y^{\prime}\left(\frac{\pi}{2}\right)=0[/tex] [tex]y(t)=\square[/tex]

[Free] C. Residuals are filtered to remove impurities. D. A residual is what is left after all the distillates have been vaporized. Question 4 What is oil viscosity? Select one: A. Viscosity is an oil additive that determines how freely oil flows B. Viscosity is a measure of the relative lubricity of the oil. C. Viscosity is a measure of the heating capacity of the oil. D. Viscosity is a measure of the thickness of the oil.

[Free] A technician suspects that the exhaust gas recirculation (EGR) valve is closed. Which of the following would indicate a closed EGR valve? A) Spark knock B) Stalling C) Rough idle D) Engine surge