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.
The GVT exam has 75 questions and runs 2 hours.
These 10 free GVT questions are organized by exam domain, so you can see how each part of the Gaming and Vending Technician (GVT) blueprint is tested. Reveal the answer and explanation under each question.
A replacement coin validator identifies each US quarter as $0.25, yet every quarter adds $0.50 to the machine's cash balance. Diagnostics show exactly one accepted-coin event per coin. Where should the technician look first?
Correct answer: C - Host denomination-to-credit assignment
The bill-acceptor log records a $20 note recognized, held in escrow, then returned to the inlet after the host sends RETURN. No credit is posted. This installation commits credit only after a STACK command is completed. How should this transaction be interpreted?
Correct answer: C - The requested return completed without a credited deposit.
During a guarded payout test, coins reach the tray but the controller's payout count stays at zero. This hopper reports one pulse per coin. Valid pulses appear at the connected hopper output but not at the controller end of the harness. A compatible test pulse applied directly to the controller input is counted. Where is the fault localized?
Correct answer: B - The signal wiring and connectors between hopper and controller
The motor harness reads 24.0 V across its load terminals with the motor unplugged. Under a service load drawing the specified normal branch current, the supply holds 23.9 V. Voltage drop is 5.8 V across one mated positive-feed connector and 0.1 V along the entire return path. These findings point to:
Correct answer: A - Excessive resistance at the positive-feed connection.
A 24.0 V DC source drives two verified power resistors, 90 Ω and 30 Ω, in series with a test fixture's leads and contacts. The steady current is 80 mA. Ignoring the meter's negligible burden, what additional series resistance do the leads and contacts contribute?
Correct answer: B - 180 Ω
A failed output-filter capacitor is marked 470 µF, 25 V. The maximum voltage across it, including ripple, is 18 V. The manufacturer permits a higher voltage rating but requires the original capacitance. The available replacements all meet the specified polarity, temperature, ESR, ripple-current, and physical-fit requirements. Which choice permits the repair to proceed?
Correct answer: B - Install an available 470 µF, 35 V capacitor.
A payout solenoid's ordinary rectifier diode, used for flyback suppression, is missing. The coil connects from +24 VDC to an NPN transistor's collector; the emitter connects to 0 V. To suppress the coil's turn-off transient, the replacement diode should connect with its:
Correct answer: A - Cathode to +24 V; anode to the collector.
The LCD in a gaming cabinet appears black. A flashlight held near the screen reveals the correct moving game image and the monitor's own menu, both faint but complete. The failure is most strongly localized to the:
Correct answer: D - Backlight, its driver, or its power path
All eight conductors in a newly fitted Ethernet cable pass a simple pin-to-pin DC continuity test: 1 to 1 through 8 to 8, with no shorts. The link is unstable, but a known-good cable works. Which fault can exist while all those continuity results remain correct?
Correct answer: C - A split pair with correct end-to-end pin continuity.
Emergency services are responding to a collapsed adult in the repair shop. A technician trained in lay-rescuer CPR has applied an AED, which announces, "No shock advised." The coworker remains unresponsive and is only gasping. What should the technician do now?
Correct answer: B - Resume CPR immediately, beginning with chest compressions.
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