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The ACU exam has 35 questions and runs 0 hours 50 minutes.
These 10 free ACU questions are organized by exam domain, so you can see how each part of the AutoCAD Certified User (ACU) blueprint is tested. Reveal the answer and explanation under each question.
A digital link between an S6L and an external device produces clicks and intermittent clock-unlocked indications. Sample-rate conversion is not in use. Both devices display 96 kHz, but each is using its own internal clock. Routing and signal levels are correct. What needs to change?
Correct answer: A - Establish one supported clock reference and confirm receiver lock.
Mid-show, an S6L network alarm identifies a failed cable in a redundant Stage I/O connection. Audio and control remain stable over the surviving path, and there is no equipment or electrical hazard. Which response fits the actual loss of redundancy?
Correct answer: A - Preserve the working path and coordinate replacement of the failed cable.
One vocal channel falls silent as soon as its external insert is enabled. The input meter remains active, and signal reaches the insert send, but none returns from the outboard processor, which has lost power. Other channels are normal, and the processor cannot be restarted during this song. How should the engineer restore the dry vocal without disturbing the rest of the mix?
Correct answer: A - Bypass the external insert on the affected vocal channel.
An EQ correction made to the lead vocal during the opening song must survive every remaining snapshot. The vocal's programmed fader moves and mute cues must still be recalled. Which protection meets both requirements?
Correct answer: D - Apply Recall Safe to the lead vocal's EQ parameters only.
Only the drummer asks for more lead vocal. The engineer spills Aux 5, which feeds the drummer's pre-fader monitor mix, and raises the vocal fader. The vocal gets louder in the house but not in the drummer's mix. After restoring the house level, how can the engineer use the fader to raise only the vocal in Aux 5 without changing the house mix?
Correct answer: C - Enable Sends on Faders for Aux 5; raise the vocal.
Attention Follows Select is disabled. The external Inputs page must remain on the lead vocal while the engineer adjusts guitar EQ using the associated Channel Knob Module. Both channels are visible in the same fader bank. How is the guitar targeted locally without replacing the vocal on the external screen?
Correct answer: D - Press Select on the guitar channel's fader strip.
A vocal is clean at its wireless receiver, but its S6L Stage input shows converter clipping on loud notes. Pulling down the channel fader makes the distortion quieter; it does not remove it, even though the output now peaks at -16 dBFS. Which adjustment addresses the overload at its origin?
Correct answer: B - Reduce the analog preamp gain feeding the converter.
A sustained signal enters a hard-knee downward compressor at -6 dBFS. Its threshold is -18 dBFS, ratio is 4:1, and makeup gain is +3 dB. No other gain changes occur. Once the compressor has settled, which pair correctly describes its gain-reduction meter and its output level after makeup gain?
Correct answer: C - 9 dB of gain reduction; output at -12 dBFS.
At rehearsal, VENUE refuses to instantiate another compatible AAX DSP reverb because DSP resources are insufficient. Three unused plug-in instances have been bypassed, but the DSP allocation display has not changed. None is needed by any remaining cue. Which operation can release their processing allocation?
Correct answer: B - Remove the unused instances from the plug-in rack.
Pro Tools follows transport commands from the S6L and creates the expected markers when snapshots are recalled. Live Stage inputs are audible through the console, but the Pro Tools tracks intended to record their unprocessed digital splits show no input. Where should troubleshooting focus before changing the live mix?
Correct answer: D - The Pro Tools audio device and track-input assignments.
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