TACK1 by Huy Đặng

Write a paragraph (120- 140 words) about how to make an effective presentation based on the suggested questions.

littlebynnn — 2024-09-15 08:43:04 UTC

Presentation is important because it helps us a lot at work and even in life. A good presentation can help us better understand the lesson or the topic. So, how to have a good presentation or make it better? About a presentation, it’s necessary to know the structure of a presentation. It consists of three main parts: introduction, body and conclusion. However, most of presenters add a Q&A session to make their presentations clearer and easy to understand. What about giving a presentation, a good presentation also includes a good presenter’s speech. Firstly, the speakers have to find out what their audience wants and give it to them. That way, they can attract everyone’s attention which is the first step to a successful presentation. Next, speakers need to prepare a content clearly. Because the spoken English is different from the written English so they have to change the style of written English into spoken English. The presenters have to make sure they do not read the script on their paper during the whole presentation. Use gestures and body language to express ideas, don’t forget to keep eye contact to the audience because you speak to audience not to the paper. A tip to get listener’s attention is tell some personal stories or experiences, it can be used as an example of the presentation. After the presentation, always thank the audience, let them ask some question and answer it. If you don’t know the answer, promise you will find the answer and come back to questioner later. Finally, just smile and relax and of couse, please make your phone quiet. Practice day by day to improve your presentation skills because it will helps you in future careers.

Write a paragraph (120- 140 words) about how to make an effective presentation based on the suggested questions.

littlebynnn — 2024-09-15 08:43:36 UTC

You are an apprentice in a mechanical company. You are in charge of buying bearings because they are out of stock. Make a report (120-140 words) to the supervisor on some different kinds of bearings you bought based on the suggested questions below.

littlebynnn — 2024-09-23 04:31:17 UTC

There are several types of bearings, each with its unique features and applications. The two main classifications of bearings are journal bearings and rolling contact bearings. Journal bearings do not have rolling parts, the shaft rotates inside a lubricated sleeve instead. Journal bearings are used rollers to support loads. Rolling contact bearings consist of inner and outer race: inner race rotates with the shaft and outer race remains stable relative to the shaft Rolling contact bearings are divided into 4 types: ball bearings use spherical rollers; they support radial and axial motion. Straight roller bearings use cylindrical rollers and support radial motion. Tapered roller bearings use conical rollers. They support radial forces and moderate thrust forces. Thrust roller bearings use barrel-shaped rollers and support motion.

You are an apprentice in a mechanical company. You are in charge of buying coulpings because they are out of stock. Make a report (120-140 words) to the supervisor on different kinds of couplings based on the suggested questions below.

littlebynnn — 2024-09-23 04:31:39 UTC

There are many kinds of couplings, each with different purposes and features. Some of the common types of couplings are: rigid couplings, flexible coupling. Rigid couplings: These are used when the shafts are perfectly aligned and do not need any flexibility. They are simple and cheap, but they cannot absorb any misalignment or vibration. Flexible couplings consist of an elastic material, such as rubber or a series of metal discs, which can absorb shock and compensate for misalignments in the shaft. Each coupling type has its own components: rigid couplings consist of two hubs and fasteners, while flexible couplings employ elements like elastomers or metal discs. The main features of these couplings transmit power efficiently, misalignment compensation, shock absorption, and isolation. Their applications span various industries, such as automotive, manufacturing, power generation, and marine environments.

littlebynnn — 2024-09-23 04:49:06 UTC

littlebynnn — 2024-09-23 04:49:13 UTC

https://youtu.be/vODPr8toDZw

Write a paragraph (120 - 140 words) about different types of gears using the following suggested questions.

littlebynnn — 2024-09-29 04:17:26 UTC

A gear is a rotating circular component of a machine with teeth, which mesh with another toothed part to transmit torque. The function of gears is to change the speed, torque, and direction of a power source. There are spur gears, bevel gears, worm and worm gears, and rack and pinion gears. First, spur gears are easy to install and cheap. They are also the most common and simplest type of gear. Second, helical gears have some outstanding features such as being stronger and quieter. They are used to reduce speeds. Regarding bevel gears, they meet each other at an angle, usually 90 degrees. Next, worm and worm gears are special because they have one continuous tooth. Like helical gears, when operated, worm and worm gears have quiet and smooth meshing actions as well as act as speed reducers. Lastly, rack and pinion gears are circular gear engaging a linear gear to convert rotational motion to linear motion.

Write a paragraph (120 - 140 words) to compare two types of drives using the suggested questions below.

littlebynnn — 2024-09-29 04:18:32 UTC

There are two commonly used types of drives: belt drives and chain drives. Belt drives operate by transmitting motion and power between shafts through friction between a belt and pulleys. On the other hand, chain drives transmit motion and power between successive chains using special toothed wheels called sprockets. Chain drives are typically made of metal with multiple links, while belts are often made of rubber, plastic, urethane, or other materials.

Chain drives differ from belt drives in their operation as they can produce noise and vibrations. Unlike belt drives, chain drives do not experience slippage. Consequently, chain drives have higher efficiency compared to belt drives, which have lower efficiency. Belt tension can be affected, while chain drives remain unaffected. Additionally, belt drives require minimal maintenance whereas chain drives necessitate regular maintenance.

Belt drives find applications in flour mills, coolant pumps, lubricant pumps, lathe machines, and various other machines. Conversely, chain drives are commonly used in bicycles, motorcycles, material handling equipment, and so on.

speaking u3-1

littlebynnn — 2024-09-29 13:16:21 UTC

speaking u3-2

littlebynnn — 2024-09-29 13:16:35 UTC

https://youtu.be/wXoY3dInyMk

littlebynnn — 2024-09-29 13:17:15 UTC

littlebynnn — 2024-09-29 13:17:29 UTC