Millwright exam 2023/2024 with 100% correct answers

To engage or disengage a driven machine, without starting and stopping the prime mover - correct answer What is the purpose of a clutch? A clutch that depends on interlocking parts for engagement and does not allow slippage - correct answer What is a positive contact clutch? 1. Cannot be engaged at high speeds due to shock loads transmitted upon engagement 2. It may not be possible to engage unless the driver and driven unit are completely stopped because the mating parts do not line up - correct answer What are the disadvantages of a positive contact clutch? 1. Square jaw 2. Spiral Jaw 3. Multiple-tooth design - correct answer What are the 3 types of positive contact clutches? A clutch that uses interlocking square jaws that lock into mating recesses in its face member - correct answer What is a square jaw clutch? True - correct answer True or false. Square jaw clutches are bidirectional. very low speeds - correct answer What speeds can a square jaw clutch be engaged? transmitting high torque - correct answer A square jaw clutch can be disengaged at any speed as long as it is not __________________________________. Speed of the engagement and the resistance of the shaft - correct answer What two factors determine the magnitude of the shock when engaging a square jaw clutch? Manual levers, electric solenoids, or a pneumatic or hydraulic cylinder - correct answer What is used to actuate a square jaw clutch? A clutch where the jaws a re squre on one side and have a slope on the opposite - correct answer What is a spiral jaw clutch? Yes - correct answer Can spiral clutches be engaged at hire speeds than square jaw clutches? Splines or being keyed to the shaft - correct answer What allows one of the positive contact clutch jaws to slide axially? Spiral - correct answer A ________________ clutch drives in one direction only. Manual levers, electric solenoids, or a pneumatic or hydraulic cylinder - correct answer What is used to actuate a spiral jaw clutch? A clutch that uses a large number of small gear teeth or serrations to provide engagement - correct answer What is a multiple-toothe clutch? Multiple-tooth clutches - correct answer What positive contact clutch is able to engage at the highest speed? Most oftenly an electric solenoid - correct answer What is used to actuate a multiple tooth clutch?