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BIGF exit exam questions and answers — Set 7

Set 7 of the Basic Training for Ships subject to the IGF Code (BIGF) exit exam bank — 1 of 181 questions, with the correct option marked and a one-line explanation for every one. Read it end to end, jump to a single set, or search it — then sit the same bank as a timed paper. The real DG Shipping exit exam is 30 marks with 15 to pass.

These are the bank's original groupings. Practising deals the whole bank out again every time you reshuffle, so a practice “Set 3” is a different 30 questions each time — the set numbers below are the source file's, and are only used here so the key stays navigable. Options are listed in their original order with fixed letters; when you practise, those move too.

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1 of 1 shown · Set 7

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Set 7 — 1 BIGF exit exam questions with answers

1. What is concentration of a hydrocarbon gas in air below which there is insufficient hydrocarbon to support combustion?

  • A. Flash point
  • B. Gas freeing
  • C. Flammable range
  • D. Lower flamable limit
Answer: D — Lower flamable limit
The Lower Flammable Limit (LFL/LEL) represents the minimum volume percentage of fuel vapor in air required to support combustion; below this level the fuel mixture is too lean.

Printing this? Use your browser's Print (Ctrl/⌘ + P) — the buttons, the search box and the site chrome drop out and the questions run on as plain text, so a set fits a few pages. Filter to one set first if you only want that set on paper.

Practise these BIGF questions as a timed paper All 181 BIGF questions and answers BIGF exit exam sets and syllabus All 27 STCW exit exam courses