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The passage on the Roman Tunnel IELTS reading answers is given in this article. You can read the passage carefully and practice attempting this section of the IELTS exam. You can get perfect in it by firmly doing your IELTS exam preparation.

 

यह भी पढ़ें: मोज़ार्ट इफ़ेक्ट रीडिंग उत्तर: तैयारी और युक्तियों के साथ आईईएलटीएस उत्तर पढ़ना

आईईएलटीएस उत्तर भाग एक पढ़ना

The Romans, who once controlled areas of Europe, North Africa, and Asia Minor, adopted the construction techniques of other civilizations to build tunnels in their territories.

The Persians, who lived in present-day Iran, were one of the first civilizations to build tunnels that provided a reliable supply of water to human settlements in dry areas. In the early first millennium BCE, they introduced the qanat method of tunnel construction, which consisted of placing posts over a hill in a straight line, to ensure that the tunnel kept to its route, and then digging vertical shafts down into the ground at regular intervals.

Underground, workers removed the earth from between the ends of the shafts, creating a tunnel. The excavated soil was taken up to the surface using the shafts, which also provided ventilation during the work.

Once the tunnel was completed, it allowed water to flow from the top of a hillside down towards a canal, which supplied water for human use. Remarkably, some qanats built by the Persians 2,700 years ago are still in use today.

भाग दो

They later passed on their knowledge to the Romans, who also used the qanat method to construct water-supply tunnels for agriculture. Roma qanat tunnels were constructed with vertical shafts dug at intervals of between 30 and 60 meters. The shafts were equipped with handholds and footholds to help those climbing in and out of them and were covered with a wooden or stone lid.

To ensure that the shafts were vertical, Romans hung a plumb line from a rod placed across the top of each shaft and made sure that the weight at the end of it hung in the centre of the shaft. Plumb lines were also used to measure the depth of the shaft and to determine the slope of the tunnel.

The 5.6-kilometre-long Claudius tunnel, built-in 41 CE to drain the Fucine Lake in central Italy, had shafts that were up to 122 meters deep, took 11 years to build, and involved approximately 30,000 workers.

भाग तीन

By the 6th century BCE, the second method of tunnel construction appeared called the counter-excavation method, in which the tunnel was constructed from both ends. It was used to cut through high mountains when the qanat method was not a practical alternative. This method required greater planning and advanced knowledge of surveying, mathematics, and geometry as both ends of a tunnel had to meet correctly at the centre of the mountain.

Adjustments to the direction of the tunnel also had to be made whenever builders encountered geological problems or when it deviated from its set path. They constantly checked the tunnel’s advancing direction, for example, by looking back at the light that penetrated through the tunnel mouth, and made corrections whenever necessary.

Large deviations could happen, and they could result in one end of the tunnel not being usable. An inscription written on the side of a 428-meter tunnel, built by the Romans as part of the Saldana aqueduct system in modern-day Algeria, describes how the two teams of builders missed each other in the mountain and how the later construction of a lateral link between both corridors corrected the initial error.

यह भी पढ़ें: Intelligence and Giftedness IELTS Reading Answers Topic: Practise Questions & Answers for IELTS 2022

भाग चार

The Romans dug tunnels for their roads using the counter-excavation method, whenever they encountered obstacles such as hills or mountains that were too high for roads to pass over. An example is the 37-meter-long, 6-meter-high, Furlo Pass Tunnel built in Italy in 69-79 CE. Remarkably, a modern road still uses this tunnel today.

Tunnels were also built for mineral extraction. Miners would locate a mineral vein and then pursue it with shafts and tunnels underground. Traces of such tunnels used to mine gold can still be found at the Dolaucothi mines in Wales. When the sole purpose of a tunnel was mineral extraction, construction required less planning, as the tunnel route was determined by the mineral vein.

भाग पांच

Roman tunnel projects were carefully planned and carried out. The length of time it took to construct a tunnel depended on the method being used and the type of rock being excavated. The qanat construction method was usually faster than the counter-excavation method as it was more straightforward. This was because the mountain could be excavated not only from the tunnel mouths but also from shafts.

The type of rock could also influence construction times. When the rock was hard, the Romans employed a technique called fire quenching which consisted of heating the rock with fire, and then suddenly cooling it with cold water so that it would crack.

Progress through hard rock could be very slow, and it was not uncommon for tunnels to take years, if not decades, to be built. Construction marks left on a Roman tunnel in Bologna show that the rate of advance through solid rock was 30 centimetres per day.

In contrast, the rate of advance of the Claudius tunnel can be calculated at 1.4 meters per day. Most tunnels had inscriptions showing the names of patrons who ordered the construction and sometimes the name of the architect.

For example, the 1.4-kilometre Çevlik tunnel in Turkey, built to divert the floodwater threatening the harbour of the ancient city of Seleucia Pieria, had inscriptions on the entrance, still visible today, that also indicate that the tunnel was started in 69 CE and was completed in 81 CE.

यह भी पढ़ें: कॉफी का इतिहास: आईईएलटीएस परीक्षा 2022 के लिए महत्वपूर्ण आईईएलटीएस पढ़ने का विषय

आईईएलटीएस रीडिंग पैसेज से संबंधित प्रश्न

सवाल नंबर एक

परिच्छेद से दिए गए कुछ कथन निम्नलिखित हैं ऊपर. आपको गद्यांश से उत्तरों की जांच करनी होगी और उन्हें सही ढंग से लिखना होगा।

#1. Roma qanat tunnels were constructed with vertical shafts dug at intervals of between ______________ meters.

Answer: 30 and 60

#2. Tunnel was started in ____________ and was completed in ___________.

Answer: 69 CE and 81 CE

#3. The 5.6-kilometer-long ______________ was built in 41 CE.

Answer: Claudius tunnel

#4. Traces of such tunnels used to mine gold can still be found at the ____________________ in Wales.

Answer: Dolaucothi mines.

प्रश्न संख्या दो

नीचे दिए गए कथनों को देखें और उन्हें पढ़ने के बाद उनके सामने TRUE या FALSE लिखें।

सत्य - यदि कथन उपरोक्त परिच्छेद में दी गई जानकारी से सहमत है।

असत्य - यदि कथन उपरोक्त परिच्छेद में दी गई जानकारी से असहमत है।

#1. An inscription is written on the side of a 428-meter tunnel, built by the Romans

उत्तर: सत्य

#2. The qanat construction method was usually faster than the counter-excavation method as it was more straightforward.

उत्तर: सत्य.

#3. Some qanats built by the Persians 4,090 years ago are still in use today.

उत्तर: असत्य

#4. The rate of advance of the Claudius tunnel can be calculated at 1.4 meters per day.

उत्तर: सत्य.

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