14 questions. Check the box for multiple-choice and true/false. Write on the lines for short answer.
Part A · Multiple choice
The single most useful question when troubleshooting a dispenser is:
- A) What brand is it?
- B) Is it one fueling position, or all positions on that product?
- C) How old is the site?
- D) Who was the last tech?
The most common cause of slow flow at one fueling position is:
- A) A bad main board
- B) A clogged filter
- C) The POS
- D) The display
Before you open a fuel line, you must verify:
- A) The price is correct
- B) The STP/motor for that line is deactivated and the shear valve is closed
- C) The card reader works
- D) The hose color
A dispenser breaker trips again immediately after you reset it. You should:
- A) Keep resetting until it holds
- B) Recognize a short or ground fault — stop and investigate
- C) Replace the display
- D) Ignore it
On a Gilbarco CRIND board, steady green usually means:
- A) Fault
- B) Normal operation
- C) No power
- D) Out of paper
Pump-tested regular unleaded goes back into the tank with which fill-cap color?
- A) Red
- B) Yellow
- C) White
- D) Green
Part B · True / False
At some chains (e.g. QT), you must confirm the store manager has turned dispenser security/anti-tamper off before you start.
True False
It's okay to open a dispenser while a customer is actively fueling, as long as you're quick.
True False
The Wayne CPU board is the rough equivalent of the Gilbarco CRIND board.
True False
Over-tightening the filter housing is harmless.
True False
Part C · Short answer
If all fueling positions on one product are slow or dead, where is the problem most likely — and name two specific causes.
List the fill-cap colors for regular, premium, and diesel.
Fuel is actively leaking at a dispenser. What are your first actions?
You're not sure which tank a container of tested fuel belongs to. What do you do?
Answer key · trainer copy
Show answer key
- B — One position vs. all positions changes the entire troubleshooting path.
- B — A clogged filter is the most common single-position cause.
- B — STP/motor deactivated and shear valve closed before opening a line.
- B — Repeated trips mean a short or ground fault; stop and investigate, don't keep resetting.
- B — Steady green = normal operation (blinking green = communicating/dispensing).
- C — White cap = regular unleaded.
- True.
- False — Never open a dispenser while a customer is dispensing.
- True — The Wayne CPU board is the equivalent of Gilbarco's CRIND.
- False — Over-tightening cracks the cap or cuts the o-ring and causes a leak; hand-tight plus a small snug.
- Upstream / line- or pump-side. Any two: STP not running/cycling; line leak detector tripped; check valve at the STP; actual line leak; power to the STP; tank empty or wrong product mapping.
- Regular = white; premium = red; diesel = yellow or green.
- Stop the source if safe (close the shear valve / shut down the STP), contain the spill, notify per procedure, and document what you found and did.
- Stop and call your manager — do not pour it.