Class 12 English Unit 4 Technology Complete Guide (NEB New Syllabus) | Notes, Exercise Solutions & Summary | Language Development
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Welcome to your premier destination for the Class 12 English Unit 4 Technology academic syllabus. This complete online textbook companion offers fully resolved answers to all end-of-chapter questions and language exercises.

Through this comprehensive resource on Class 12 English Unit 4 Technology, you will navigate the futuristic concepts of the Hyperloop, understand modern transportation challenges, and practice English grammar regarding Subject-Verb Agreement.

To acquire more context on the technological innovations discussed in this unit, you can explore the mechanics of the Hyperloop online.

Access our general index for additional chapters here: Class 12 English Notes.

Class 12 English Unit 4 Technology study notes

1. Class 12 English Unit 4 Technology: Working with Words

A. Choose the correct words from the box to complete the following sentences.
a. I think that covering up the facts is equivalent to lying really.
b. If there is not a substantial move to public transport, we will have deceleration and the whole regeneration will not work.
c. Each new leader would blame his predecessor for all the evils of the past.
d. We have, in fact, envisioned a better world and have made it happen.
e. The main linear actuators of the pneumatic systems are cylinders.
f. The barrel was short and the bullet emerged at subsonic speed.
g. The city is said to receive two-fifths of the total freight delivered in the country.
h. It would still take four hours to get down, in a spiral of gridlock.
i. Apparently, the magician will be doing some levitation on the stage tomorrow.
j. We might be experiencing some turbulence on this flight due to an approaching electrical storm.

B. Add three more words that are formed with the following prefixes.
a. hyper: hyperloop, hypersensitive, hyperlipidaemia, hyperinflation.
b. ultra: ultrahigh, ultralight, ultrashort, ultrabasic, ultrafiche.
c. up: uphill, Upwork, upside, uplift.
d. over: overcoming, overwhelm, overdrunk, oversized.
e. multi: multibillion, multinational, multicultural, multiply.

2. Class 12 English Unit 4 Technology: Comprehension Solutions

Answer the following questions based on the text.
a. What is a hyperloop? How does it work?
Hyperloop is a planned conceptual train system that would be capable of travelling at incredible, supersonic speeds. It’s superfast because it’s enclosed in a sealed tube with no air in it. As a result of the lack of air, there will be virtually no friction or air resistance to slow the train pods down.
b. How is hyperloop more beneficial than the traditional trains?
Hyperloop is much more beneficial and technologically superior than any traditional train or high-speed rail. It’s theoretically less expensive and uses significantly less energy since the track doesn’t have to provide electricity to the pods constantly. Additionally, because the independent pods may depart every 30 seconds, it operates more like a highly efficient, demand-based service rather than a scheduled mass transit.
c. Does hyperloop have a successful history? How?
No, it does not have a fully successful, operational history yet since the original concept for hyperloop (using pneumatic tubes) was primarily used to transport mail and parcels between buildings in the 19th century, rather than actual human passengers.
d. Write the contributions of Robert Goddard and Elon Musk for the development of hyperloop.
The ‘vactrain’ idea, created by physicist Robert Goddard in the early 20th century, is clearly a theoretical prototype of the modern hyperloop.

In order to provide ultra-fast intercity transport, Space X and Tesla founder Elon Musk conceptualized the modern hyperloop idea. In addition to automobiles, aircraft, boats, and trains, Elon envisions a “fifth mode” of transportation that utilizes travel pods housed within steel vacuum tubes. He successfully revived global interest in the idea of hyperloop in August 2013 with the publication of his ‘Hyperloop Alpha’ white paper.
e. What relation does speed have with air resistance? Explain.
More air resistance drastically decreases the speed of a moving body, and vice versa. Since the Hyperloop will travel through vacuum-sealed tubes, the speed will drastically increase as the direct result of zero air resistance and no aerodynamic drag.
f. What are hyperloop capsules compared with? How are they similar?
Hyperloop capsules are likened to a Boeing 747 aircraft. They are similar because both the Hyperloop pod and the Boeing 747 accelerate at approximately the same comfortable measure of acceleration, making the physical experience comparable for passengers.
g. How do the passengers feel while travelling via hyperloop? What will be done to make it luxurious?
On a hyperloop, the passengers will feel approximately the same as riding a smooth lift or a passenger aircraft. To make the journey luxurious, the enclosed cabin will show projected beautiful scenery on digital screens, and each passenger will have full access to his or her own private amusement and entertainment systems, ensuring an easeful travel experience.
h. Why does the writer doubt about the success of hyperloop? What does the success depend on?
The author has severe concerns regarding the hyperloop’s practical viability because of the enormous, multibillion-dollar infrastructural expenditure required, and the fact that the projects are still merely in the pilot and experimental phases. In the past, Nikola Tesla and Elon Musk had already closed similar concept programs due to no financial or regulatory response from government authorities. Ultimately, Hyperloop’s success will be determined by the chosen destinations, the local economy’s ability to fund it, and the geographical location of the tubes.

3. Class 12 English Unit 4 Technology: Critical Thinking Analysis

a. Is the hyperloop the future of transportation or just a dream? What do you think? Justify your opinion with suitable reasons.

Basically, the Hyperloop is a highly ambitious conceptual transport system in which passengers are loaded into pressurized pods and fired through vacuum tubes, all at a supersonic speed. Hyperloop isn’t just about incredible speed; it also aims to be heavily environmentally friendly by operating purely on electricity.

The basic concept of the Hyperloop is not completely new, though. Pneumatic tubes for parcel, mail, and money transfers found widespread acceptance in the 19th century and are actually still used at modern supermarkets, postal sorting stations, and bank drive-throughs today. Hyperloop’s concept heavily resembles these pneumatic mail delivery systems. Even flying in the air seemed to be absolutely impossible in past days, but now travelling via air is a common, everyday occurrence for us. So no one can definitively say that it’s not possible, because everything which was a wild dream once, is often reality now.

In conclusion, we can see that Hyperloop may indeed become the transformative future of transportation systems worldwide. If this becomes a scalable reality, even though it is not expected for decades, there will be an immense positive impact on ordinary people’s lives and economies. Apart from the convenience and the green impact, we can also hope for massive economic success.

However, despite the immense promise, implementing completely new technologies takes time, and it will be a while until we can seamlessly travel in a pod inside a sealed tube with a sound only as loud as a gentle ‘SWOOSH.’


b. The number of private vehicles is increasing day by day in Nepal beyond the capacity of our infrastructure. What do you think should be done to curb the ever-growing number of private vehicles? Discuss.

The number of private vehicles is increasing day by day in Nepal, completely beyond the capacity of our fragile infrastructure, and is vastly outpacing the country’s road development. The number of Nepalese who own personal cars and motorbikes is steadily increasing. Despite the fact that it eases their day-to-day life, it is causing great environmental and economic losses due to traffic gridlock. The excessive use of private vehicles should be restricted since their widespread usage severely degrades the environment and increases emissions of hazardous greenhouse gases that will create major health problems in the future. To control this critical situation, some strict structural safety measures have to be taken.

The best initial approach is to actively discourage people from opting to buy cars. This can be effectively done by heavily increasing toll fares for cars and by devising a strict system of progressive taxation on private vehicles. The system can have a legal upper limit on the number of cars owned per family, and the rate of tax on each car can be exponentially increased as the number of cars bought keeps rising.

But these administrative efforts would be completely meaningless unless they are accompanied by massive measures to encourage people to use public transport by totally revamping the dismal public transit system in Nepal. More clean buses need to ply during rush hour, and the buses must be made significantly more comfortable (by using better cushions, functional air conditioning, better suspension, etc.). The punctuality and absolute reliability of public transport systems must be strictly upheld. Cleanliness and public hygiene must be kept in mind while maintaining bus and train stations.

The above approaches must be powerfully complemented with civic efforts to change the false social notion that using public transport is contemptible or only for the poor. The best weapon to deal with this stigma is to make public transport as dignified, fast, and pleasant as possible.

4. Class 12 English Unit 4 Technology: Grammar (Subject-Verb Agreement)

B. Rewrite the following sentences with the correct form of the verbs in the brackets.
a. The invitation is for one person. I don’t mind whether you or she (come) to the party.
→ The invitation is for one person. I don’t mind whether you or she comes to the party. (Note: When subjects are joined by “or”, the verb agrees with the subject closest to it.)
b. Neither the MPs nor the Prime Minister (have) felt regret for the party split.
→ Neither the MPs nor the Prime Minister has felt regret for the party split.
c. I don’t care whether he or she (win) the lottery.
→ I don’t care whether he or she wins the lottery.
d. Either the Kantipur or the Republica (be) used for the advertisement.
→ Either the Kantipur or the Republica is used for the advertisement.
e. She speaks in a strange accent. Neither I nor my sister (understand) her.
→ She speaks in a strange accent. Neither I nor my sister understands her.
f. I forgot whether the singers or the actress (be) given the Film Fair Award last year.
→ I forgot whether the singers or the actress was given the Film Fair Award last year.
g. Neither the tracksuit nor the pajamas (fit) me perfectly.
→ Neither the tracksuit nor the pajamas fit me perfectly.
h. Neither the gas fire nor the electric heaters (be) suitable for room heating.
→ Neither the gas fire nor the electric heaters are suitable for room heating.

C. This passage contains agreement errors. Correct the subjects or verbs that don’t agree with each other. Remember to use present tense in your corrections.

(Below is the corrected passage based on subject-verb agreement rules:)

Within the state of Arizona, Rob, along with his family, moves frequently from city to city. After his arrival, one of his first tasks was to find an apartment close to work, as he did not have a car. Usually, there are many different places to choose from, and he considers cost, location, and luxury. If one apartment has a washing machine and dryer and costs four hundred dollars a month, he prefers to rent it over another apartment which has significantly less rent and is located two blocks from a Laundromat. Rob’s family never wanted to live in an apartment on the thirteenth floor, since all of them fear heights. He also tried to choose an apartment with a landlord recommended by former tenants. Everybody knows that it is important to find a responsible landlord. Rob and his wife love to cook together when both are free, so they need a spacious, well-equipped kitchen. Rob often looks for a place with an air conditioner because there are so many scorching days and nights in Arizona. Whenever Rob finds a new apartment, all of his concerns disappear. He felt relieved and called his mother. Someone understands!

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