Find total ESALs for a school bus yard for empty bus storage lot with a preliminary design SN of 3.0 and a terminal serviceability of 2.0 given the following conditions:200 school days per year, 2 trips per day, 20 year design life Standard Bus: 12k single front axle, and 4k single rear axle. Parking for 150 busses Also 2 semi fuel tankers will visit the site each week.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

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

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer