ArticleslgStudy

science

Pit prop

Pit prop is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Pit prop rather than just read about it. In short: A pit prop or mine prop (British and American usage, respectively) is a length of lumber used to prop up the roofs of tunnels in mines. Canada, northern Sweden and Norway traditionally supplied pit props to the British market.

Pit prop — main illustration
Pit prop — illustration

Key takeaways

  • Pit prop belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Pit prop to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Pit prop from memory before moving on to harder problems.

Reference excerpt

A pit prop or mine prop (British and American usage, respectively) is a length of lumber used to prop up the roofs of tunnels in mines. Canada, northern Sweden and Norway traditionally supplied pit props to the British market. As coal mining declined in importance and metal supports were used, the term became infrequently used. Though it was merely a log cut to a particular length, it was classified as a finished product and so got around the extra Canadian tariffs on the export of raw lumber. Because of the large quantities exported, it is probable many ended up in British pulp mills. Most pit props were made from the wood of spruce and pine trees.

References

Illustrations

Pit prop: Lumberjacks stacking pit props to be used in coal mines (1943)
Lumberjacks stacking pit props to be used in coal mines (1943)

Worked examples

Example 1 — a first encounter with Pit prop

Start with the simplest possible case. Write down what Pit prop claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Pit prop before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Pit prop ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Pit prop

In research
Pit prop appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Pit prop in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Pit prop is common in secondary-school and first-year university syllabi. It links to neighbouring topics Coal mining, Mining stubs, so understanding it makes those chapters shorter.
In everyday life
Look for Pit prop outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Pit prop in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Pit prop means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Pit prop out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pit prop in simple terms?

A pit prop or mine prop (British and American usage, respectively) is a length of lumber used to prop up the roofs of tunnels in mines. Canada, northern Sweden and Norway traditionally supplied pit props to the British market.

Why does Pit prop matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Pit prop?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Pit prop.

Tags

  • Coal mining
  • Mining stubs

Keep exploring