Which of the following would NOT be a typical symptom of insufficient gas pressure?

Burner flame being too low is typically associated with insufficient gas pressure. When gas pressure is insufficient, the burner may not receive enough fuel to create the appropriate flame height, leading to a low flame that may not adequately heat or operate the appliance as intended.

In contrast, the other options accurately reflect symptoms of insufficient gas pressure. For instance, an extinguished pilot light can occur because it does not receive enough gas to stay lit. Similarly, delayed ignition happens when the gas builds up before igniting, often due to slow delivery resulting from low pressure. An abnormal flame color, such as yellow or orange instead of the typical blue, can indicate incomplete combustion, which can be a consequence of insufficient fuel or improper air-gas mixture due to inadequate pressure. Each of these symptoms highlights issues directly linked to the functionality and safety of gas appliances in the context of gas pressure.