SACA C-210 Mechanical Power Systems 1 Exam Review: Comprehensive Questions with Detailed Solutions

SACA C-210 Mechanical Power Systems 1 Exam Review: Comprehensive Questions with Detailed Solutions 1. What is the best way to determine where to oil and grease a machine? - ANSWER Refer to the operation and maintnenance manual. 2. What is the rotational speed of a gear drive's driver gear if the driven gear is 1440 RPM, the drive consists of a 24-tooth driver and an 36-tooth driven gear? - ANSWER 2160 3. What is the measure of torque? - ANSWER Newton-meters 4. How is shim thickness determined when using the feeler gauge method to align a shaft mounted in pillow block bearings? - ANSWER Feeler gauge leaf thickness multiplied by the shim ratio 5. Where should a V-belt ride in the groove of the sheave? - ANSWER high 6. What can a soft foot mounting condition cause when the motor is placed into service? - ANSWER Vibration 7. What effect does an idler gear located between the driver shaft have on the operation of a gearbox? - ANSWER Change the direction of rotation 8. What is the best instrument to use when measuring the inside width and depth of a keyseat? - ANSWER dial caliper 9. When installing an anti-friction bearing, under what circumstances should you use the sleeve and hammer method? - ANSWER The sleeve should be of soft material 10. The function of a machine shaft is to - ANSWER transmit mechanical power from one location to another 11. The three types of loads placed on bearings are - ANSWER radial, thrust, and combination 12. When mechanically installing a bearing on a shaft, the hammer should never be used directly on the - ANSWER bearing 13. What is being securely transmitted with a coupler from one shaft to another - ANSWER Torque and speed 14. What is vertical parallel? - ANSWER Aligning the shaft heights 15. Pully ratio is defined as the ratio of - ANSWER Pitch diameter of the driven pulley to the pitch diameter of the driver pulley 16. In a belt drive system, as the pulley ratio increases, shaft speed on the driven pulley will ______ and shaft torque will ________ - ANSWER decrease, increase 17. Which of the following is not a given misalignment? - ANSWER Sheave 18. What should you do when working around mechanical power transmission equipment? - ANSWER Not work on wet floors. 19. What should you do before working on mechanical power transmission equipment? - ANSWER Make sure machine power is off and its power switch is locked out by a lockout/tagout device. 20. What is the rotational speed of a belt drive's driven sheave in RPM if the driver sheave has 100 mm pitch diameter, the driven sheave has a 200 mm pitch diameter, and the driver sheave speed is 1800 RPM? - ANSWER 900 21. What is the best way to determine where to oil and grease a machine? - ANSWER Refer to the operation and maintnenance manual. 22. What is the rotational speed of a gear drive's driver gear if the driven gear is 1440 RPM, the drive consists of a 24-tooth driver and an 36-tooth driven gear? - ANSWER 2160 23. What is the measure of torque? - ANSWER Newton-meters 24. How is shim thickness determined when using the feeler gauge method to align a shaft mounted in pillow block bearings? - ANSWER Feeler gauge leaf thickness multiplied by the shim ratio 25. Where should a V-belt ride in the groove of the sheave? - ANSWER high 26. What can a soft foot mounting condition cause when the motor is placed into service? - ANSWER Vibration 27. What effect does an idler gear located between the driver shaft have on the operation of a gearbox? - ANSWER Change the direction of rotation 28. What is the best instrument to use when measuring the inside width and depth of a keyseat? - ANSWER dial caliper 29. When installing an anti-friction bearing, under what circumstances should you use the sleeve and hammer method? - ANSWER The sleeve should be of soft material 30. The function of a machine shaft is to - ANSWER transmit mechanical power from one location to another 31. The three types of loads placed on bearings are - ANSWER radial, thrust, and combination 32. When mechanically installing a bearing on a shaft, the hammer should never be used directly on the - ANSWER bearing 33. What is being securely transmitted with a coupler from one shaft to another - ANSWER Torque and speed 34. What is vertical parallel? - ANSWER Aligning the shaft heights 35. Pully ratio is defined as the ratio of - ANSWER Pitch diameter of the driven pulley to the pitch diameter of the driver pulley 36. In a belt drive system, as the pulley ratio increases, shaft speed on the driven pulley will ______ and shaft torque will ________ - ANSWER decrease, increase