10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free 2AMS questions are organized by exam domain, so you can see how each part of the Level 2: Applied Mechanical Systems (2AMS) blueprint is tested. Reveal the answer and explanation under each question.
A new ball bearing turns roughly after being pressed onto an interference-fit shaft. The shaft dimensions are correct, but the press sleeve contacted the outer ring, and inspection now shows dents at the ball-contact positions. What should change for the replacement installation?
Correct answer: B - Apply pressing force through the inner ring.
The gearbox seal was changed yesterday; today, oil is again leaking along the shaft. Seal size, material, orientation and oil level meet specification. A circumferential wear groove lies exactly under the sealing lip. What repair removes the reason for the repeat leak?
Correct answer: C - Restore the counterface with an approved repair sleeve.
A coupling drawing shows a serpentine steel element seated in grooves in two hubs. A sealed casing encloses the element and its lubricant. Which description matches this construction?
Correct answer: A - A grid coupling whose flexible steel element requires the specified lubrication.
A stationary pump is the alignment reference. At the coupling, the motor's actual shaft centerline is 0.06 mm above the extended pump axis. This height difference increases by 0.04 mm for every 100 mm toward the motor's rear. The front and rear feet are 200 mm and 500 mm from the coupling. After isolation and soft-foot correction, at least 0.30 mm of removable shims remains under each foot. What shim changes will bring the motor axis onto the pump axis at the specified zero cold target?
Correct answer: B - Front feet: remove 0.14 mm; rear feet: remove 0.26 mm.
A horizontal ball-screw axis has excessive reversal lost motion. During an isolated endplay check, the screw shaft moves 0.09 mm axially relative to its fixed-support housing; the machine limit is 0.02 mm. With the screw restrained against both rotation and axial movement, a separate test finds nut backlash within specification. Where should the next inspection focus?
Correct answer: D - The support bearings and their axial retaining components.
An indexing carriage must travel at 100 mm/s. Its ball screw has a 4 mm pitch and two starts, and the nut cannot rotate. The maximum permitted screw speed is 900 rpm; all other operating limits are satisfied. Can this arrangement deliver the required travel speed within that limit?
Correct answer: C - Yes; 750 rpm produces the required travel speed.
An overrunning clutch connects a motor to a conveyor drive shaft and is correctly installed to transmit motor torque during forward drive. The motor slows, but the conveyor drive shaft continues rotating faster in the same direction. How should the clutch behave?
Correct answer: A - It freewheels, allowing the conveyor drive shaft to turn faster than the motor.
A spring-applied, pneumatically released brake drags after a release command. Its operating procedure requires at least 0.50 MPa at the brake for full release and limits supply pressure to 0.60 MPa. Under a sustained release command, verified steady readings are 0.55 MPa at the manifold and 0.35 MPa at the brake. The air gap and lining thickness meet specification. What should the technician correct first?
Correct answer: B - Restore the specified release pressure at the brake, then verify that it releases fully.
Two authorized mechanics at a U.S. plant are preparing to replace a lift-cylinder seal under OSHA lockout/tagout rules. The pump disconnect and supply valve are locked, with the keys in a group lockbox. Only one mechanic has attached a personal lock to that box. Trapped hydraulic pressure still supports the raised platform, although a try-start produces no motion. Before both mechanics begin the repair, they must:
Correct answer: C - Add the second personal lock, secure rated blocking, then relieve pressure and verify isolation.
The maintenance specification calls for NLGI 2 grease with an ISO VG 68 base oil. A proposed substitute is also NLGI 2 but has an ISO VG 220 base oil. The storeroom labels the two greases equivalent on the strength of the matching NLGI grades. Which distinction matters here?
Correct answer: D - Their consistency grades match, but their base-oil viscosity grades differ.
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