A Double Check Valve Assembly (DCVA) consists of two check valves, two shutoff valves, and which additional feature that distinguishes it from a simple dual-check?

Practise this Backflow Tester question free, then download the PDF, watch the video walkthrough, or unlock timed mock exams for the full web bank.

Download PDF Watch video

Multiple choice — select the best answer

AAn air gap
BA relief valve
CA vacuum breaker
DTest cocks between and outside the checks

✓ Correct answer: D. Test cocks between and outside the checks A DCVA includes test cocks (typically four) that allow field testing of each check valve independently, unlike a simple dual-check that has no test ports. This testability is required for cross-connection control programs.

.q-expl{display:block!important}.q-opt[data-idx="3"]{border-color:#16a34a;background:#f0fdf4}.q-opt[data-idx="3"] .oltr{background:#16a34a;color:#fff}.q-opt{cursor:default!important;pointer-events:none}

Keep practising. Use the free Backflow Tester PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

Topic: Assembly Types

← Previous Next → 🎲 Random question ↩ Back to all questions

Keep practising

A Double Check Valve Assembly (DCVA) consists of two check valves, two shutoff valves, and which additional feature that distinguishes it from a simple dual-check?

Related questions — Assembly Types

Free practice here. Timed mocks when you are ready.