COVER AS-END 7C0564 - Caterpillar

Engine &
Powertrain26. Roughly what percent of the fuel energy in a naturally aspirated diesel engine goes into the cooling system? a) 15%b) 25%c) 33%d) 45%27. A 6 inch gear and a 12 inch gear are meshed on two parallel shafts. The 6 inch gear is driving the larger gear with a torque of 100 foot pounds. What is the output of the shaft with the 12 inch gear? a) 50 lb ftb) 100 lb ftc) 200 lb ft28. With a planetary gear set, what is the output speed and direction if the planet carrier is driven and the sun gear is held? a) Slower speed, same directionb) Slower speed, reverse directionc) Faster speed, same directiond) Faster speed, reverse direction29. The flyweight force in a governor: a) Prevents fuel rack movementb) Increases surgingc) Does not affect the fuel rackd) Moves the fuel rack toward fuel-on positione) Moves the fuel rack toward the fuel-off position30. What promotes the formation of sulfuric acid in a diesel engine? a) High coolant temperatureb) Light engine loadsc) High sulfur level in fueld) Excessive oil consumptione) All of the above Answers: 26.c, 27.a, 28.c, 29.e, 30.c.