Mike wants to manufacture a saucepan. Which physical factor should he consider the most in determining the choice of a material for it?

Ashworth Lesson 2: Careers for mechanics and technicians exam

A dam 75 ft wide, with a nominal flow rate of 260 ft3/s, is to be studied with a scale model 3 ft wide, using Froude scaling as the most important similarity parameter.

Which of the following is part of the highway transportation system (HTS) ? (a) vehicles (c) people (b) roadways (d) all of these

A spherical soap bubble with a surface-tension of 0.005lbf/ft is expanded from a diameter of 0.5 in to 3.0 in. How much work, in Btu, is required to expand this bubble

Technician A says that the sound of a loose timing chain can be similar to the sound of a detective rod bearing. Technician B says the timing belts need only be replaced when belt teeth are missing or broken. Who is correct? A. Technician B B.

The Reynolds number, rhoVD/μ is a very important parameter in fluid mechanics. Determine its value for ethyl alcohol flowing at a velocity of 4 m/s through a 2-in.-diameter pipe.

Work done by a system during a process can be considered as a property of the system. a) True b) False

When the compression process is non-quasi-equilibrium, the molecules before the piston face cannot escape fast enough, forming a high-pressure region in front of the piston. It takes more work to move the piston against this high-pressure region.

hypothetical A-B alloy of composition 40 wt% B-60 wt% A at some temperature is found to consist of mass fractions of 0.66 and 0.34 for the α and β phases, respectively.

10. Which of these requires a wheel alignment after replacement? A. Struts B. Shocks C. Both