Systems engineers began as a field for which reason? To aid with large-scaled defense systems in the 1950s.

To facilitate space travel in the 1960s.

To discover new sources of fuel in the 1970s.

To respond to the growth of computer technology in the 1980s.

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