NVS TGT Science Mock Test - 6 - NVS TGT/PGT MCQ

India achieved a remarkable reduction of 33% in its GDP emission intensity between 2005 and 2019, surpassing the target outlined in 'The Third National Communication to the United Nations Framework Convention on Climate Change' report.

The Ashoka's wheel in the Indian national flag represents the Wheel of the Law of Dharma, symbolizing the path of enlightenment and nirvana.

The Buzi Bridge was inaugurated by Union External Affairs Minister Dr S Jaishankar. The Minister also had a meeting with President of Assembly Esperança Bias.
It was built as part of 132 km Tica-Buzi-Nova-Sofala Road project by India in Mozambique.

India maintained its ranking at 126th in the World Happiness Report 2024, the same as the previous year. This ranking is based on various factors such as GDP, life expectancy, social support, freedom, generosity, and perceptions of corruption.

- Given Codes:
- PAINT = 74128
- EXCEL = 93596

- Analysis:
- Each letter is represented by a single digit in the code.

- Mapping:
- P -> 7
- A -> 4
- I -> 1
- N -> 2
- T -> 8

- Applying the same logic to ACCEPT:
- A -> 4
- C -> 5
- E -> 5
- P -> 7
- T -> 8

- So, the code for ACCEPT is 455978, which corresponds to option A.

PCB stands for Process Control Block.
The Process Control Block (PCB) is a data structure used by operating systems to manage processes. It contains all the necessary information about a process that the operating system needs to manage and control the execution of the process.
The PCB includes the following information:
1. Process ID (PID): A unique identifier assigned to each process by the operating system.
2. Process State: Indicates the current state of the process, such as running, ready, waiting, or terminated.
3. Program Counter: Stores the address of the next instruction to be executed by the process.
4. CPU Registers: Contains the values of the CPU registers being used by the process, such as the accumulator, stack pointer, and program status word.
5. Memory Management Information: Includes information about the memory allocated to the process, such as base and limit registers, page tables, and segment tables.
6. Scheduling Information: Contains data related to process scheduling, such as priority, time slice, and waiting time.
7. I/O Status Information: Stores the status of I/O operations initiated by the process, such as the list of open files and their file descriptors.
8. Parent Process ID: Stores the PID of the parent process that created the current process.
9. Child Process ID: Stores the PID of the child process created by the current process, if any.
The PCB plays a crucial role in process management:
- Context Switching: When the operating system switches from one process to another, it saves the context of the currently running process in its PCB and restores the context of the next process from its PCB.
- Process Scheduling: The PCB contains scheduling information that helps the operating system determine the priority and order in which processes should be executed.
- Process Communication: The PCB can be used to facilitate process communication by providing information about shared resources, inter-process communication channels, and synchronization mechanisms.
- Resource Management: The PCB includes information about the resources allocated to the process, such as memory, files, and I/O devices, which helps the operating system manage and track resource usage.
In conclusion, the Process Control Block (PCB) is a data structure used by operating systems to manage and control processes. It contains essential information about a process, including its state, CPU registers, memory management details, and scheduling information. The PCB plays a crucial role in process management, including context switching, process scheduling, process communication, and resource management.

A dot matrix printer is a type of printer that uses a matrix of small pins to create characters or images on paper. Let's analyze each statement to determine the correct answer:
i) Prints an entire line at a time: This statement is incorrect. A dot matrix printer prints one character at a time by striking an ink-soaked ribbon against the paper. It does not print an entire line at a time.
ii) Is a non-impact printer: This statement is incorrect. A dot matrix printer is an impact printer because it uses physical force to create the characters. The pins strike the ribbon, which transfers ink to the paper, resulting in the printed output.
iii) Allows multiple copies to be taken at a time: This statement is correct. Dot matrix printers have the ability to create multiple copies simultaneously. This is achieved by using carbon paper or carbonless paper, which allows the impact of the pins to transfer the image to multiple layers of paper.
iv) Prints one character at a time: This statement is correct. Dot matrix printers operate by individually striking pins against an ink-soaked ribbon to create characters. Each pin represents one dot, and the combination of dots forms the characters or images on the paper.
Based on the analysis above, the correct answer is C: iii and iv. A dot matrix printer allows multiple copies to be taken at a time and prints one character at a time.

In explore learning phase, the students investigate the topic more thoroughly. They need not be over-directed and need to find their way to the materials. They will need some direction and the teacher can circulate, asking important questions, listening to their interactions, and ensuring that they remain on task.
The 6 E's and S (Engage, Explore, Explain, Elaborate, Evaluate, Extend, and Standards) lesson plan format was developed by teachers, in consultation with faculty from schools of education, and is based on a constructivist model of teaching. The lesson plans are based on constructivist instructional models, with activities and sections of the plan designed to have the students continually add (or construct) new knowledge on top of existing knowledge.

Teachers use different evaluation methods because different subjects require different methods of assessment like science can be assessed by practical exams and languages can be assessed by evaluating verbal ability and fluency.

Initial velocity, u = 0.2 m/s. 

Final velocity, v = 0 

Acceleration, a = 0.02 m/s^2.

v = u + at 

0 = 0.2 - 0.02 x t

0.02 x t = 0.2 

t = 0.2 / 0.02 = 10 sec.

Thus, the body will take 10 seconds to stop.

Here u = - 15 cm and v = - 30 cm, hence

Questions refer to a problem or difficulty that needs to be solved by thinking and recalling the concept. Effective teachers use productive questions to help students advance in their thinking and to construct their own understandings.

• There are different types of questions and the 'divergent question' is one of them. A divergent question does not inspire a brief or single-worded response.

Key Points

• Divergent questions are the open-ended type of questions that do not have a specific answer and that allow adequate freedom for children to respond to a situation.
• The teacher encourages the children to give multiple responses that help in developing argumentation skills in learners. The learners will try to contradict the solutions of others to prove their response as the right and appropriate one.
• Also, these types of questions help to promote dialogue and discussion among peers as the students communicate and discuss with each other while looking for multiple solutions to a problem.
• It requires an answer with a proper explanation. It can't be answered in yes or no and discourages one-word answers which test one's ability to think broadly on a certain topic which helps in developing their critical thinking strategies.
• The constant rote memorization, passive learning, copying facts discourage creative expression. So, the teacher asks divergent questions to encourage originality on the part of children and should ask them a variety of questions to bring flexibility in their answers.

Hence, it could be concluded that by asking divergent questions the teacher is trying to stimulate and develop critical thinking.

Object is always kept on the left side of the mirror therefore its distance is always negative when taken from left of pole.

Non Uniform motion is defined as the motion of an object in which the object travels with varied speed and it does not cover same distance in equal time intervals, irrespective of the time interval length.

Examples:

1. If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.

2. The motion of a train.

Do not conclude that sound is a transverse wave that has crests and troughs. Sound waves traveling through air are indeed longitudinal waves with compressions and rarefactions. As sound passes through air (or any fluid medium), the particles of air do not vibrate in a transverse manner.

Ca(OH)₂ + Cl₂ → CaOCl₂ + H₂O 
(Manufacturing of bleaching powder)

To prevent rusting:

• The iron articles should be painted, the machine parts should be oiled or greased, galvanized iron pipes are used for water supply.
• But ( iron articles should be covered with plastic) is the incorrect method of preventing rusting. 

​​​​​​​So Option B is correct

Evaporation of water increases with increase in temperature, surface area and wind speed but decrease with increase in humidity. So, larger humidity will decrease the rate of evaporation.

The Hypothalamus, a neuro-endocrine region, plays a crucial role in linking the nervous and endocrine systems. It is responsible for producing hormones like somatostatin and dopamine and is connected to the pituitary gland. The Hypothalamus helps regulate various bodily functions and plays a key role in maintaining homeostasis by controlling hormone release and other essential processes.

In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because greater height means larger potential energy, and this larger amount of potential energy is converted into larger kinetic energy.

Animal husbandry is the scientific management of:
- Animal breeding: Animal husbandry involves the selection and breeding of animals with desirable traits to improve the genetic makeup of the population. This includes practices such as artificial insemination, selective breeding, and genetic engineering.
- Culture of animals: Animal husbandry includes the proper care and management of animals, including their feeding, housing, and healthcare. This ensures that the animals are provided with optimal conditions for growth, reproduction, and overall well-being.
- Animal livestock: Animal husbandry involves the raising and management of livestock animals for various purposes such as meat, milk, eggs, and fiber production. This includes practices such as herd management, nutrition planning, and disease prevention.
- Rearing of animals: Animal husbandry encompasses the process of raising animals from a young age until they reach maturity. This includes providing proper nutrition, shelter, and healthcare to ensure their growth and development.
Based on the above explanation, the correct answer is (D) (i), (iii), and (iv). By practicing animal husbandry, farmers and animal breeders can optimize the productivity and health of animals, contributing to the overall improvement of the agricultural sector.

According to all other fuels hydorgen is less polluting because Hydrogen gas is considered as cleanest fuel. Unlike carbon based fuels, hydrogen produces no harmful by-products on combustion. Only energy and clean water are produced.

In addition to direct solar power from photovoltaic and solar thermal sources, coal, oil, natural gas, biomass, and even the wind and hydropower we harness to generate electricity originally derive their energy content from the effects of sunlight.

Food Chain: Starting Point
The correct answer to the question is B: Photosynthesis. A food chain always starts with photosynthesis. Here is a detailed explanation of why photosynthesis is the starting point of a food chain:
1. What is Photosynthesis?
Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into glucose and oxygen. It takes place in the chloroplasts of plant cells.
2. Role of Photosynthesis in the Food Chain:
Photosynthesis is the primary source of energy for all living organisms on Earth. It is responsible for the production of organic compounds, primarily glucose, which serves as food for the entire food chain.
3. Producers:
Green plants, also known as producers, are the first trophic level in a food chain. They use photosynthesis to convert sunlight energy into chemical energy (glucose). They are self-sustaining and do not depend on other organisms for their energy.
4. Herbivores:
Herbivores are the primary consumers in a food chain. They consume plants, utilizing the energy stored in the glucose produced through photosynthesis. Examples of herbivores include cows, rabbits, and deer.
5. Carnivores and Omnivores:
Carnivores and omnivores are the secondary and tertiary consumers in a food chain. They obtain energy by consuming herbivores or other carnivores. Carnivores solely depend on the consumption of other organisms for their energy needs.
6. Decomposers:
Decomposers, such as bacteria and fungi, play a crucial role in the food chain. They break down the remains of dead organisms, including plants and animals, releasing nutrients back into the ecosystem. These nutrients are then used by plants for photosynthesis, completing the cycle.
In conclusion, photosynthesis is the starting point of a food chain. It provides the energy needed for the growth and survival of all living organisms in an ecosystem. Without photosynthesis, the food chain would cease to exist, and life on Earth would not be sustainable.

शाम होते ही लौट आना।
Explanation: इस वाक्य मै शाम होते ही लौट आने के लिए कहा गया है, जिसका मतलब है कि जिस समय शाम हो जाए उसी समय लौट आना होगा।

'निरपराध, उच्छ्वास, उच्छृंखल' आदि सभी शब्‍द शुद्ध रूप में लिखें गये हैं। Key Points

अन्‍य विकल्‍प

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