6) A gear train (shown below) is composed of four gears, A, B, C, and D. Gear A has 16 teeth and is meshed with gear B. Gear B has 32 teeth and shares a shaft
with gear C, which has 14 teeth. Gear C is meshed with gear D, the output gear
which has 42 teeth. What is the gear ratio of the train? *

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.