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Questions in engineering

[Done] You need to transport 50 bags of concrete. What is an example of a question you might ask yourself to effectively plan your work? A. Can this be moved by mechanical equipment? B. Who is working on your team today? C. Why do you need to move the materials? D. What other materials do you need to move today?

[Done] Which of the following environments are safest when using hand and power tools? A. A space with wet floors B. A space that has safety signs prohibiting smoking and a fire extinguisher C. A space that is crowded or cluttered D. A space that has poor ventilation

[Done] When is a non-self-supporting portable ladder appropriate to use? A. When you need to reach a height of 12 feet (3.7 meters) and can position a ladder on an uneven work surface B. When you need to climb to the top of a rail car C. When you need a job-made ladder for temporary access to a work area until a fixed ladder can be installed D. When you need to reach a height of 22 feet (6.7 meters) and a stable structure is available to support the ladder

[Done] What's one supporting point for using hydroelectricity for energy?

[Done] A simply supported beam is subjected to uniformly distributed loads: a service dead load [tex]w_D=5 kips / ft[/tex] and a service live load [tex]w_L=7 kips / ft[/tex]. Use the load combination [tex]w_u=1.2 w_D+ 1.6 w_L[/tex]. Note that the shear force is expressed as [tex]V_u=w_u(\frac{L}{2}-x)[/tex] where [tex]x[/tex] is the distance from a support. (65pts total) The beam also has the following properties. [tex] \begin{array}{c} f_c=4 ksi, \quad f_y=f_{yt}=60 ksi, \quad b=18 in \ h=26 in, \quad d=24.5 in \end{array} [/tex] No. 4 bars, U-stirrups used, Normal weight concrete (1) Calculate the required spacing of stirrups. (15pts)

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] i. Gas-cap-drive reservoirs can be identified by the presence of a gas ii. Water drive reservoir characterized by a slow decline in the reservoir pressure. drive. iii. The degree of uncertain and the quality and quantity of geologic and engineering complexity, maturity iv. Analogical Methods is one of the reserve estimation methods. v. 7758 is a unit conversion constant, barrels in sas-oil ratio, scf/STB. vi. Rp is denoted for In of initial volume of oil in place to the initial volume of gas cap. vii. m represent the ration solution gas is [tex]$\left[N R_{s i}-N_p R_p-\left(N-N_P\right) R_s\right] \beta_g$[/tex] viii. The volume ix. The Van Everdinge x. [tex]$DOI + SDI + EDI + WDI \leq 1.0$[/tex]

[Done] Where are fixed ladders typically found? A. In residential homes for attic access B. Attached to structures, buildings, or equipment C. In retail facilities for access to high shelves D. In outdoor spaces for general public use

[Done] Tuhin is servicing an HVACR system outside of the building where he's working. He'll need an extension cord for the power tool he's using. It isn't equipped with a GFCI. What should he do? A. If there isn't one built-in, he won't need one. B. He should only use the power tool indoors. C. He should add one to the end of the extension cord. D. He should check the specific power tool instructions because some don't require the use of a GFCI.

[Done] Most tubing cutters have a ___, which can be used to remove burrs from cut tubing. A. miter box B. reamer C. hacksaw