Describe the are of mechanical engineering

When preparing a foundation for a heavy duty machine tool, discuss any four (4) statics machine characteristics to be considered.

A solid circular rod that is 600 mm long and 20 mm in diameter is subjected to an axial force of P = 50 kN The elongation of the rod is Ii = l. 40 mm. and its diameter becomes d' = 19.9837 mm.

For each of the following cases choose a suitable system, if possible, and describe its boundaries and surroundings. Indicate if the work done (Wk) is positive, negative, or zero, and heat transfer (Q), if any, positive, negative or zero.

1. Research has found that lap/shoulder safety belts, when used, reduce the risk of fatal injury to front-seat passenger car occupants by percent. A. O 25 B. O 35 C. O 45 D. O 55

The primary heat transfer mechanism that quickly warms my hand if I hold it directly above a campfire is: a) - Radiation b) - Inductance c) - Convection d) - Conduction

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

What is the definition of diameter pitch?