By what factors do you increase the resistance to bending (about x-x axis) if you were to use W18 × 76 beam over W8 × 31

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

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?