DSE Odisha TGT Science CBZ Mock Test - 10 - OTET MCQ

In Odisha, Kalahandi is not a notable flower-growing region.

One of the proposed solutions is to embrace technological upgrades, including data analytics, Big Data, AI, and machine learning, to enhance the effectiveness of the Comptroller and Auditor General (CAG).

Hence, Option C is correct.

81% of 600 – x = 40% of 300
486 – x = 120
x = 366
Hence, Option C is correct.

Hence, Option B is correct.

The performance of a data communications network depends on several factors. Here are the key points:
Number of Users:
- The number of users accessing the network simultaneously can affect its performance.
- As the number of users increases, the network may experience congestion and slower speeds.
- Network capacity needs to be sufficient to handle the traffic generated by all users.
The Hardware and Software:
- The quality and efficiency of the hardware components used in the network infrastructure can impact performance.
- This includes routers, switches, cables, and other networking equipment.
- Similarly, the software used to manage and control the network plays a crucial role.
- Proper configuration and updates are essential to optimize performance.
The Transmission:
- The transmission medium used for data transfer, such as copper wires, fiber optic cables, or wireless connections, can affect network performance.
- The bandwidth and speed capabilities of the transmission medium impact data transfer rates.
- Interference or signal degradation can occur, leading to slower or unreliable connections.
All of These:
- All the mentioned factors (number of users, hardware and software, and transmission) collectively contribute to the overall performance of a data communications network.
- Neglecting any of these aspects can result in poor network performance and user experience.
In conclusion, the performance of a data communications network is influenced by the number of users, the quality of hardware and software components, and the characteristics of the transmission medium. Considering and optimizing these factors is crucial for maintaining an efficient and reliable network.

Term Referring to a Specific Set of Values Saved with the Workbook
The correct answer is B: Scenario.
Explanation:
When working with a workbook in a spreadsheet application like Microsoft Excel, a scenario refers to a specific set of values that are saved with the workbook. These values can be used to conduct "what-if" analysis and explore different possibilities and outcomes.
Here is a detailed explanation of the other options:
A: Range: A range refers to a group of cells in a spreadsheet that are selected or highlighted.
C: Trend line: A trend line is a line on a graph that represents the general direction or pattern of a series of data points. It is often used to analyze and predict trends.
D: What-if analysis: What-if analysis is a process of changing variables in a spreadsheet model to see how the changes affect the outcome. It helps in exploring different scenarios and making informed decisions.
In conclusion, the term that refers to a specific set of values saved with the workbook is B: Scenario.

Data Transfer Rate for USB 2.0:

• USB 2.0: The data transfer rate for USB 2.0 is 480 Mbps (megabits per second).

Explanation:

• USB 2.0: USB 2.0 is a widely used standard for connecting devices to a computer. It is an upgraded version of USB 1.1 and offers faster data transfer speeds.


• Data Transfer Rate: The data transfer rate refers to the speed at which data can be transmitted between devices through the USB connection.


• 480 Mbps: USB 2.0 supports a maximum data transfer rate of 480 Mbps. This means that data can be transferred at a speed of up to 480 megabits per second.


• Comparison: The other options provided (512 Mbps and 520 Mbps) are not correct as they do not match the actual data transfer rate of USB 2.0.

Summary:

Therefore, the correct answer is option A: 480 Mbps. USB 2.0 has a data transfer rate of 480 Mbps, allowing for faster and more efficient data transfer between devices.

The operating system is also called the Interface between the user and the computer.
Explanation:
- An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.
- It acts as an intermediary between the user and the computer, allowing the user to interact with the computer hardware and software.
- The operating system provides a user-friendly interface that enables users to perform various tasks and access computer resources easily.
- It translates user commands and instructions into a language that the computer can understand and execute.
- The operating system also manages and allocates system resources such as memory, processing power, and input/output devices.
- It allows users to run multiple programs simultaneously and ensures that they do not interfere with each other.
- The operating system also handles system errors, manages file systems, and provides security features to protect the computer and user data.
- Overall, the operating system serves as a bridge between the user and the computer, enabling efficient and effective communication and interaction.

Childhood refers to the period of the human lifespan, ranging from birth to puberty. It consists of many developmental stages and 'adolescence' is one of them.

• 'Adolescence' comes from the Latin word 'Adolescere' which means 'to grow to become mature'. It a stage which lies between the age of '12 to 19 years'.
• Emotion is a mental state associated with fear, anger, love, etc. Emotional states of an individual are the combination of physiological arousal, psychological appraisal, and behavioral changes.
• Emotionally disturbed children can be defined in terms of certain observable characteristics such as withdrawn behavior, failure to achieve a level reasonably commensurate with ability or tendency towards fighting, and other aggressive behavior.

​Key Points

Emotional disturbances of adolescents:

• They show the same emotions as they used to show in their childhood  i.e., fear, disgust, but the emotions of adolescence are different in their patterns.
• The emotions at this stage are more uncontrolled, intensive, and irrational.  As they gradually grow, their emotional behavior improves and become mature.
• Children who suffer from emotional disturbances generally do nail-biting, thumb sucking, depression, pulling or stretching of hairs, fear of specific objects or things, etc.
• A child wearing a well-fitted dress is not a symptom of emotional disturbance but wearing proper clothes that fit them well makes them confident.

Hence, it could be concluded that wearing a well-fitted dress is not found in the symptoms of emotional disturbances of adolescents.

Theory of multiple intelligence was given by Howard Gardner and he proposed eight different intelligences to determine human potential.

'Wrong' answers of students should be corrected by the teachers during class discussions as children should be encouraged to express themselves without fear of being incorrect.

A teacher makes an attempt to understand the potentialities of his/her students it is related to Educational Psychology. Educational Psychology is considered as the branch of psychology that deals with the scientific study of human learning. The study of learning processes takes place from both behavioural and cognitive perspectives, allows experimenters to know about the individual differences in cognitive development, intelligence.
Hence, the correct answer is, 'Educational Psychology.'

The statement "Children actively construct their understanding of the world" was said by Piaget. Piaget saw the kid as constantly creating and re-creating his own model of reality, achieving mental growth by integrating simpler concepts into higher-level concepts at each stage. He argued for a “genetic epistemology,” a timetable established naturally for the event of the child’s ability to think, and he traced four stages therein development. Hence, the correct answer is, 'Piaget.'

Active agencies of Socialization are the family, the schools, the community, the religion, the state, social clubs, etc. These are the agencies where socialization takes place actively. Passive agencies are Cinema, T.V, Radio, Newspapers, Public Library, magazines, marketplace, etc. In public libraries, people learn about manners, rules, etc but actual interaction does not take place.
Hence, the correct answer is, 'Public Library.'

1 inch = 2.54 cm

• John Newlands arranged the known elements in increasing order of their atomic masses.
• He started with the element having the lowest atomic mass ( hydrogen) and ended at thorium which was the 56th element.
• He found that every eighth element had properties similar to the first.

EAN = 28 (Z) – 2 (oxidation number) + 2*4 (CN) = 34

Hence A

k (Conductivity) =0.0248 Scm⁻¹, C (molarity) = 0.20 M, T (temperature) = 298 K
Λm​ = ? (molar conductivity) 

Λm​ = (1000×k​) / C = (1000×0.0248) / 0.20 ​= 124 S cm² mol⁻¹

The molar conductivity is 124 S cm² mol⁻¹

It is advised to add acid to water when diluting acids because the process of dissolving an acid or a base in water is highly exothermic, meaning it releases a significant amount of heat. Adding water to acid could lead to rapid heating and potential splattering, while adding acid to water allows for better control of the reaction and minimizes the risk of accidents.

Citric acid cycle or C_3cycle start with pyruvate and leads to complete oxidation of glucose to carbon dioxide and energy in form of ATP, NADH and FADH₂. At end of citric acid cycle, most of the energy is transferred to NADH and FADH₂.

Photophosphorylation is the conversion of ADP to ATP using the energy of sunlight by activation of PSII. This involves the splitting of the water molecule in oxygen and hydrogen protons (H⁺), a process known as photolysis.

• The first step of the Calvin pathway is the carbon dioxide fixation step.
• The carbon dioxide acceptor molecule RuBP combines with carbon dioxide to give 2 molecules of 3PGA with RuBisCO as the catalyst.

Fermentation of carbohydrates such as glucose, lactose, sucrose produces lactic acid.
So the correct option is 'Fermentation.'

During citric acid cycle, Succinic acid is converted into Fumaric acid during which FAD + FAD +  molecules is produce that produce 2 ATP molecules.

• The category "Genus" comprises a group of related species with more common characteristics than species of other genera.
• It is one level above species in the hierarchy.

In animal cells, during the S phase of interphase, DNA replication begins in the nucleus and the centriole duplicates in the cytoplasm. These duplicated centrioles move towards opposite poles of the cell in prophase of mitosis.

Cellulose is the most abundant organic molecule present on earth. Cellulose forms the cell wall of all plant cells. Cell wall is the outermost protective layer of cell.
OR
The most abundant organic compound on Earth is cellulose, which is made up of many, many glucose molecules all linked together.

Coevolution is caused by the selection pressures that each of the two species exerts on the other. Since there has been no coevolved herbivore with prickly pear cactus, it became abundant in Australia.

• Viruses do not carry out metabolic processes. Most notably, viruses differ from living organisms in that they cannot generate ATP.
• They do not possess ribosomes and cannot independently form proteins from molecules of messenger RNA