--- title: Rivers, canals and boats: locks, weirs, water-mills, barge… — the lesson's questions with trees and pragmatics · Technology description: The 15 test and exam questions of lesson 41 «Rivers, canals and boats: locks, weirs, water-mills, barges and how not to tip a rowing boat» of the technology course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmat --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Technology](https://md.mova.elamur.ai/free/en/corpora/questions/technology/) / Rivers, canals and boats: locks, weirs… # Rivers, canals and boats: locks, weirs, water-mills, barges and how not to tip a rowing boat The 15 questions of lesson 41 «Rivers, canals and boats: locks, weirs, water-mills, barges and how not to tip a rowing boat» of the technology course of Mova's primary school with their options, 84 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t1/) — «canals are just rivers innit» What is right? — wrong ✗ · ★★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t2/) — A Victorian boatman says one horse on the towpath does the work of fifteen horses with carts. How can that be? — right ✓ · ★★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t3/) — In the book Toad offers to steer the barge instead of washing. What steers a barge? — wrong ✗ · ★★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t4/) — «how does a lock lift a whole boat with no engine» What is the best answer? — right ✓ · ★★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t5/) — Portly goes missing and the Otter fears the weir. Why is a weir dangerous for a small swimmer? — right ✓ · ★★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t6/) — «we're going on a narrowboat holiday, can we go 30 mph to get there quicker?» What is right? — wrong ✗ · ★★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t7/) — The Mole grabs the sculls, lunges and «Sploosh! Over went the boat». What should you do in a small boat? — right ✓ · ★★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t8/) — A painting shows a narrowboat cabin covered in roses and castles. Who lived there? — right ✓ · ★★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t9/) — «the rat rows facing backwards?? thats dumb» Why do rowers and scullers face backwards? — right ✓ · ★★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t10/) — A friend says the old mill wheel turned because a horse walked round and round it. What really turned a water-mill? — wrong ✗ · ★★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/t11/) — ★★★ A lock is 20 metres long and 2 metres wide, and the water rises 3 metres to lift a boat. How many cubic metres of water flow in? — wrong ✗ · ★★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/e1/) — Identify the principal advantage of conveying heavy goods by canal rather than by road in the eighteenth century. — right ✓ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/e2/) — Select the response consistent with the established facts concerning the operation of a canal lock. — right ✓ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/e3/) — Ascertain the reason for which bathing in the vicinity of a weir is to be avoided. — right ✓ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/technology/41-rivers-canals-and-boats-locks-weirs-water-mills-barges-and-how-not-to-tip-a-rowing-boat/e4/) — Which of the following statements most accurately characterises the practice of sculling? — wrong ✗ · exam - ← previous: [40. Self-driving cars and machines that run themselves](https://md.mova.elamur.ai/free/en/corpora/questions/technology/40-self-driving-cars-and-machines-that-run-themselves/) - next →: [42. Olympiad: machines at home and in the factory ★★★](https://md.mova.elamur.ai/free/en/corpora/questions/technology/42-olympiad-machines-at-home-and-in-the-factory/) - ↑ back to [Technology](https://md.mova.elamur.ai/free/en/corpora/questions/technology/)