JY CHEN - Ask Anything, Learn Everything. Logo

Questions in engineering

[Free] The highest available output for a water boiler is: Select one: A. 50,000,000 BTU. B. 300,000 BTU C. 500,000 BTU. D. 30,000,000 BTU.

[Free] Which step is NOT one of the steps necessary to lockout a machine? A. Notify the authorized employee. B. Locate the energy source. C. Isolate the energy source. D. Apply the locks and tags.

[Free] What is a vault? Describe its parts and/or functions.

[Free] Which of the following is addressed in the building codes with regards to pre-cast concrete? (Select all that apply) Lifting devices Tendon anchorage Reinforcements Shop drawings A, B, C only

[Free] To prevent them from falling in, materials and equipment should be placed no closer than what distance from the edge of an excavation? A. 6 inches (15 cm) B. 1 foot (30 cm) C. 2 feet (60 cm) D. 4 feet (1.2 m)

[Free] What is oil viscosity? 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] The process of continually inspecting a facility's performance using automated systems that warns technicians before problems develop is known as: A. Facility monitoring B. Production parameters C. Guard shacks and fences D. Corrective maintenance

[Free] After manually resetting an oil safety control, which check should be made to determine the cause for the control to trip? A. Voltage at the compressor and compressor amperage B. Net oil pressure and oil level, if possible C. If the compressor is short cycling D. All of these answer choices

[Free] Areas that are controlled to reduce particulate and microbial contamination are called: A. Clean rooms B. Interstitial spaces C. Corridors D. Class E rooms

[Free] Solve for $Y(s)$, the Laplace transform of the solution $y(t)$ to the initial value problem below. $y^{\prime \prime}-9 y^{\prime}+18 y=2 t e^{3 t}, y(0)=6, y^{\prime}(0)=-5$ Click here to view the table of Laplace transforms. Click here to view the table of properties of Laplace transforms. $Y(s)=\frac{2}{(s-3)^3(s-6)}+\frac{6 s+1}{(s-3)(s-6)}$