Xác định: Công dụng đầu tiên của mạch điều khiển tín hiệu là gì ?
Thông báo về tình trạng thiết bị khi gặp sự cố
Thông báo thông tin cần thiết cho con người thực hiện theo lệnh
Làm các thiết bị trang trí bằng bảng điện tử
Thông báo về tình trạng hoạt động của máy móc
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Đáp án đúng: A
Giải thích: Công dụng của mạch điều khiển tín hiệu:
1. Thông báo về tình trạng thiết bị khi gặp sự cố
2. Thông báo thông tin cần thiết cho con người thực hiện theo lệnh
3. Làm các thiết bị trang trí bằng bảng điện tử
4. Thông báo về tình trạng hoạt động của máy móc
Đề thi HK1 môn Công Nghệ 12 giúp các em học sinh kiểm tra toàn bộ kiến thức đã học trong học kỳ. Từ đó, các em sẽ rèn luyện các kỹ năng giải bài, tư duy logic để đạt kết quả tốt và chuẩn bị cho kỳ thi cuối năm.
Câu hỏi liên quan
Người mua và sử dụng hàng hoá, dịch vụ để thoả mãn, lựa chọn sản phẩm và phương thức mua hàng phù hợp với nhu cầu của cá nhân gọi là gì?
Trên hình chiếu trục đo, hệ số biến dạng theo trục O’x’ là:
Đại biểu của các Xô viết ở Nga là những thành phần nào?
Hiện tượng nào là hệ quả chuyển động xung quanh Mặt Trời của Trái Đất?
- Phát biểu nào sau đây mô tả đúng đường sức từ được tạo ra bởi một dây dẫn thẳng dài mang dòng điện?
Đọc đoạn tư liệu sau đây:
“Thời phong kiến, Vua sai coi việc chép sử, cho nên dẫu thế nào sự chép sử cũng không được tự do, thường có ý thiên vị về nhà vua, thành ra trong sử chỉ cần chép những chuyện quan hệ đến nhà vua, hơn là những quan hệ đến sự tiến hóa của nhân dân trong nước”.
(Trần Trọng Kim, Việt Nam sử lược, NXB Văn học,
Hà Nội, 2022, tr.7-8)Nội dung nào thể hiện sự phát triển vượt bậc của thủ công nghiệp nước ta trong các thế kỉ X – XV?
Trong không gian cho ba đường thẳng phân biệt a,b,c. Khẳng định nào sau đây đúng?
Hoạt động nào không ảnh hưởng xấu đến sự phát triển bền vững?
Cho biết những phát biểu dưới đây là đúng hay sai.
Quá trình nguyên phân xảy ra ở loại tế bào nào sau đây?
Dùng thông tin sau cho Câu 37 và Câu 38: Biết độ lớn cảm ứng từ do một dây dẫn thẳng dài mang dòng điện I tạo ra ở vị trí cách trục dây dẫn một khoảng r là \(B = 2,{0.10^{ - 7}}\left( {\frac{I}{r}} \right),\) với B tính bằng tesla (T), r tính bằng mét (m) và I tính bằng ampe (A).
Hai dây dẫn song song cách nhau 5 cm mang dòng điện ngược chiều nhau, cường độ dòng điện trong dây thứ nhất là 2 A, trong dây thứ 2 là 3A. Lực do dây thứ nhất tác dụng lên một mét dây thứ hai là bao nhiêu microniutơn?
Read the passage carefully. Choose an option (A, B, C or D) that best answers each question from 16 to 22.
1. Like many emergency responders, Nicholas Groom is used to stress at work. On the one hand, the stress can be helpful. “I find that when attending a serious incident, it helps me to maintain focus on the situation,” Nicholas Groom said. On the other hand, the work can be highly pressurized. “Too much stress can impair your ability to make decisions,” he adds. And Groom is not alone in his complicated relationship with stress.
2. Many people believe that there should be a balanced amount of stress. In other words, not too much stress so you’re not overwhelmed but not too little stress so you don’t feel unmotivated. After all, some anxiety is motivating; think of the adrenaline before a deadline or the excitement before a competition. Sports fans sometimes even talk about a “gene” in some athletes who seem to play best in the decisive final moments of a match. Furthermore, many psychologists claim that performance in many situations increases with stress up to a point. Of course, any stress can cause harm when it’s prolonged. To take just one example, a long-term high heart rate is linked to cardiovascular diseases. And additional stressors, such as financial pressures or psychiatric issues, clearly affect how beneficially someone can respond to stress.
3. So is there a way to harness stress to your advantage while being mindful of its detrimental long-term effects? One key factor is to avoid, whenever possible, the point when stress leads to mental and physical collapse. Crystal Wernicke, 30, has always used stress as a motivator. But juggling between parenting, a full-time job, a voluntary role and financial troubles at the same time became too much and eventually led to a two-month period of illness. Another factor is the presence of control. For those who feel powerless over their situation, stress is unlikely to be beneficial. But with some autonomy over stressful tasks, we are better able to convert that pressure into higher performance.
4. When it comes to stress and how it affects your performance, it’s helpful to recognize the variations in personality, type of stress and task that affect the level of pressure you are under, as well as understanding tools you can use to control and harness that stress. Ultimately, it’s not helpful to take a one-sided view, either demonizing or glorifying stress. As James C Quick, a management professor at the University of Texas, sums up: “Stress can be the kiss of death as well as the spice of life.”
Which of the following is NOT TRUE, according to paragraph 2?
Read the following passage about studying abroad and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
Successful students often do the followings while studying. First, they have an overview before reading. Next, they look for important information and pay greater attention to it (which often needs jumping forward or backward to process information). They also relate important points to one another. Also, they activate and use their prior knowledge. When they realize that their understanding is not good, they do not wait to change strategies. Last, they can monitor understanding and take action to correct or “fix up” mistakes in comprehension.
Conversely, students with low academic achievement often demonstrate ineffective study skills. [I] They tend to assume a passive role in learning and rely on others (e.g., teachers, parents) to monitor their studying. [II] For example, low-achieving students often do not monitor their understanding of content; they may not be aware of the purpose of studying; and they show little evidence of looking back or employing “fix-up” strategies to fix understanding problems. [III] Students who struggle with learning new information seem to be unaware that they must extend effort beyond simply reading the content to understand and remember it. [IV]
Children with learning disabilities do not plan and judge the quality of their studying. Their studying may be disorganized. Students with learning problems face challenges with personal organization as well. They often have difficulty keeping track of materials and assignments, following directions, and completing work on time. Unlike good studiers who employ a variety of study skills in a flexible yet purposeful manner, low-achieving students use a restricted range of study skills. They cannot explain why good study strategies are important for learning; and they tend to use the same, often ineffective study approach for all learning tasks, ignoring task content, structure or difficulty.
Which word below is opposite in meaning to “ineffective”?
Xét về nghệ thuật, Nguyễn Trãi đã có những đóng góp lớn nhất về phương diện nào?
Ai Cập cổ đại được hình thành trên lưu vực con sông nào?
Tập hợp các mô cùng thực hiện một chức năng tạo thành hệ thống nào?
Read the following passage about fitness trends and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
FITNESS TRENDS
[I] Reformer Pilates is an advanced and more intense variation of traditional Pilates. [II] Since this type of equipment isn’t something you would typically have at home, you’ll need to visit a specialized Pilates center to try it. [III] While it might look easy at first, don’t be fooled - by the end of the session, your thighs will be burning, and you might struggle to walk up or down stairs for a few days afterward. [IV] This workout pushes your body to its limits, providing a more challenging experience than standard Pilates, and many find it an effective way to build both strength and flexibility.
Trampolining is another popular fitness trend, and although it may seem like child's play, it’s actually a highly effective workout. Jumping up and down on a trampoline can leave you feeling exhausted after just a few minutes. Surprisingly, it’s even better for heart health than running, while also improving coordination and helping to reduce stress levels. Trampolining is gaining widespread popularity, with new centers popping up that feature as many as 150 trampolines. These facilities offer options for everyone: you can enjoy 'freejumping, where you bounce without an instructor, or pay for professional lessons to learn the best techniques and get the most out of your workout. Many people are discovering that trampolining combines fun and fitness in a way that makes staying active much more enjoyable.
If you're someone who is typically active but feeling down or emotionally drained, Dynamic Running Therapy might be just what the doctor ordered. This trend involves running with a therapist, combining the benefits of physical exercise with talk therapy. Though these sessions are often more expensive than typical therapy sessions because of the professional fees, they offer significant advantages. Running while talking helps distract you from any discomfort, allowing you to cover longer distances, and creates a relaxed, open environment that can make it easier to talk compared to the usual therapist’s office setting.
The word its in paragraph 1 refers to ____
Read the passage carefully.
1. It is estimated that about 40 per cent of the world's population use social media, and many of these billions of social media users look up to influencers to help them decide what to buy and what trends to follow. An influencer is a person who can influence the decisions of his or her followers because of his or her knowledge or special knowledge in a particular area, e.g. fashion, travel, or technology. Influencers are now seen by many companies as a direct way to customers' hearts. Brands are now asking powerful influencers to market their products. With some influencers charging up to $25,000 for one social media post, it is no surprise that more and more people are keen to become influencers, too. If you are one of them, then here are five tips on how to do it.
2. Choose your niche: What is the area that you know most about? What do you feel most excited talking about? Find the specific area that you are most interested in and develop it.
3. Choose your medium and write an interesting bio: Most influencers these days are bloggers and micro-bloggers. Decide which medium – such as your own online blog, Instagram or Snapchat – is the best way to connect with your followers and chat about your niche area. When you have done that, write an attention-grabbing bio that describes you and your speciality area in an interesting and unique way. Make sure that people who read your bio will want to follow you.
4. Post regularly and consistently: Many influencers post daily on their social media accounts. The more you post, the more likely people will follow you. Also, make sure that your posts are consistent and possibly follow a theme.
5. Tell an interesting story: Whether it is a photo or a comment that you are posting, use it to tell a story that will catch the attention of your followers and help them connectwith you.
6. Make sure people can easily find your content: Publicize your posts on a variety of social media by hashtags and catchy titles to make sure that they can be easily found. There is no point writing the most exciting blogposts or posting the most attractive photographs if no one is going to see them.
7. Most importantly, if you want to become a social media influencer, you need to have patience. Keep posting and your following will gradually increase. Good luck!
Choose an option (A, B, C, or D) that best answers each question.
In paragraph 1, what does the word them refer to?
Chọn ý đúng: Việc phân chia tài nguyên thiên nhiên thành tài nguyên đất, nước,khí hậu, sinh vật, khoáng sản là sự phân loại dựa vào?