Two steels are being considered for manufacture of as-forged connecting rods subjected tobending loads. One is AISI 4340 Cr-Mo-Ni steel capable of being heat-treated to a tensilestrength of 260 kpsi. The other is a plain carbon steel AISI 1040 with an attainable Sut of113 kpsi. Each rod is to have a size giving an equivalent diameter de of 0.75 in. Determinethe endurance limit for each material. Is there any advantage to using the alloy steel for thisfatigue application?

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise