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

Checking Statement I:

Using the above reference, we get the following arrangement:

Clearly, W is sitting second to the right of U.

Hence data in statement I is sufficient to answer the question.

Checking Statement II:

Using the above references, we get the following arrangement:

Clearly, W is sitting second to the right of U.

Hence data in statement II is sufficient to answer the question.

Here, the data in either Statement I or II alone is sufficient to answer the question.

Hence, Option C is correct.

- 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.

To select all the boxes of an organization chart, you can follow any of the following methods:
Method A: Click Edit, Select All
- Click on the "Edit" option in the menu bar.
- Select the "Select All" option from the drop-down menu.
- This will select all the boxes in the organization chart.
Method B: Right-click the Chart Background, Click Select All
- Right-click on the background of the organization chart.
- From the context menu that appears, select the "Select All" option.
- This will select all the boxes in the organization chart.
Method C: Press and Hold the Shift Key and Click Each Box
- Press and hold the Shift key on your keyboard.
- Click on each box in the organization chart while still holding the Shift key.
- This will select each box one by one.
Method D: All of These
- All of the above methods (A, B, and C) can be used to select all the boxes in an organization chart.
Note: The specific method to select all the boxes in an organization chart may vary depending on the software or tool you are using to create the chart. The methods mentioned above are general approaches that are commonly used in various chart-making applications.

IEEE 802.3ab and Gigabit Ethernet over UTP cabling
IEEE 802.3ab:
IEEE 802.3ab is a standard that defines the specifications for Gigabit Ethernet transmission over various types of cabling. It is also known as 1000BASE-T.
Gigabit Ethernet over UTP:
Gigabit Ethernet is a networking technology that provides data transmission at a rate of 1 gigabit per second (Gbps). It can be transmitted over various types of cabling, including unshielded twisted pair (UTP) cables.
UTP Category 5, 5e, and 6:
UTP cables are commonly used for Ethernet networking. They consist of four pairs of twisted copper wires. The different categories of UTP cables indicate their performance characteristics, with higher categories providing better performance.
- Category 5: This is the most basic type of UTP cable and supports data transmission up to 100 megabits per second (Mbps).
- Category 5e: This enhanced version of Category 5 cable supports data transmission up to 1000 Mbps, making it suitable for Gigabit Ethernet.
- Category 6: This is an improved version of Category 5e cable and offers even better performance. It also supports data transmission up to 1000 Mbps.
1000 BASE-T:
1000BASE-T is the Gigabit Ethernet standard defined by IEEE 802.3ab for transmission over UTP cabling. It specifically refers to Gigabit Ethernet over Category 5, 5e, or 6 UTP cables.
Answer:
Therefore, the correct answer is A: 1000 BASE-T, as defined by IEEE 802.3ab, for Gigabit Ethernet transmission over UTP Category 5, 5e, or 6 cabling.

Introduction:
In this question, we are asked to identify the characteristics of a laser printer. We need to choose the correct options from the given choices.
Characteristics of a laser printer:
A laser printer is a type of printer that uses laser technology to produce high-quality prints. Let's analyze each statement given in the question and determine its accuracy:
1. Prints an entire line at a time:
- This statement is true. Laser printers use a process called "electrophotography" or "xerography" to print an entire line at a time. This process involves the use of a laser beam to create an electrostatic image of the entire line on a photosensitive drum.
- Correct
2. Non-impact printer:
- This statement is true. Laser printers are non-impact printers, which means they do not require direct contact between the print head and the paper to create an image. Instead, they use a laser beam to transfer toner onto the paper.
- Correct
3. Allows multiple copies to be taken at a time:
- This statement is false. Laser printers generally do not allow multiple copies to be taken at a time. However, some advanced laser printers may have features like duplex printing or collating, which can produce multiple copies in a single print job.
- Incorrect
4. Prints one character at a time:
- This statement is false. Laser printers do not print one character at a time. As mentioned earlier, they print an entire line at a time using a laser beam and electrostatic imaging.
- Incorrect
Conclusion:
Based on the analysis, we can conclude that the correct characteristics of a laser printer are:
- Prints an entire line at a time
- Non-impact printer
Therefore, the correct answer is (A) i and ii.

When the heavy cylinder is slowly taken out of a dense liquid, the weight felt by the cylinder will change. Here's a detailed explanation of why the weight increases till it attains the weight in air:
- Weight in liquid: When the cylinder is fully submerged in the dense liquid, it experiences a buoyant force equal to the weight of the liquid displaced by the cylinder. This buoyant force partially cancels out the weight of the cylinder, making it feel lighter than its actual weight in air. So, the weight felt in the liquid is less than the weight in air.
- Weight as it comes out: As the cylinder is slowly taken out of the liquid, the buoyant force acting on it decreases gradually. This is because the amount of liquid displaced by the cylinder decreases as it comes out of the liquid.
- Weight increase: Since the buoyant force decreases, the net force acting on the cylinder increases. According to Newton's second law of motion (F = ma), an increase in net force leads to an increase in acceleration. In this case, the acceleration is upwards, opposite to the direction of gravity. As a result, the weight felt by the cylinder increases as it comes out of the liquid.
- Weight in air: Once the cylinder is completely out of the liquid, there is no more buoyant force acting on it. At this point, the weight felt by the cylinder is equal to its weight in air.
In conclusion, the weight felt by the cylinder increases as it comes out of the dense liquid until it attains the weight in air. Therefore, the correct answer is option D: increases till it attains the weight in air.

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.

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Key PointsCollecting the steam of boiling water on a plate with an ice cube over it will be most suitable to introduce the 'water cycle' as:

• The water cycle has many processes like evaporation, condensation, and precipitation.
• Students should understand these processes to understand the concept of the water cycle.
• Boiling water produces steam, to collect the steam a plate will be arranged on the top.
• The steam will go and deposit on the plate in the form of small water droplets.
• When they observe this they understand the various processes in the water cycle.

Hence collecting the steam of boiling water on a plate with an ice cube over it will be most suitable to introduce the 'water cycle'.Additional InformationOn the other hand, all the other activities will be less suitable because in that activities the students can observe the effect but not the process which they observe in the activity involving collecting steam.

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.

The Gravitational force between two  bodies does not depend on the charge of two bodies.
It is F = Gm1m2 / R²
 

This person suffers from the defect of hypermetropia.
For him u = -30cm, v = -1.5 m = -150cm
Therefore, focal length of corrective lens to be used by him is
1/f = 1/v- 1/u = 1/-150 - 1/-30 = 4/150 = 37.5cm
The positive sign shows that the lens needed is a convex lens of focal length 37.5 cm.
Hence, power of lens needed
P =1/f = 100/37.5 = 2.67D

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

Colloids
A colloid is a mixture in which small particles of one substance are dispersed evenly throughout another substance. The particles in a colloid are larger than those in a solution but smaller than those in a suspension. Colloids can be found in various forms, including liquids, gels, and solids.
Identifying the Colloid
To determine which of the given options is a colloid, we need to understand the characteristics of a colloid and analyze each option accordingly.
A: Aluminium paint
- Aluminium paint is a mixture of tiny aluminum particles dispersed in a liquid medium, usually oil or water.
- The aluminum particles in the paint are larger than those in a solution but smaller than those in a suspension.
- Therefore, aluminium paint is a colloid.
B: Blood
- Blood is a complex mixture of cells, proteins, and other substances suspended in plasma.
- The cells and proteins in blood are larger than those in a solution but smaller than those in a suspension.
- Therefore, blood is a colloid.
C: Milk
- Milk is a mixture of water, fats, proteins, and other substances.
- The fats and proteins in milk form small particles that are dispersed throughout the liquid.
- These particles are larger than those in a solution but smaller than those in a suspension.
- Therefore, milk is a colloid.
D: All
- Since all three options (aluminium paint, blood, and milk) meet the characteristics of a colloid, the correct answer is D: All.
Conclusion
In summary, all of the given options (aluminium paint, blood, and milk) are colloids. They are all mixtures in which small particles of one substance are dispersed evenly throughout another substance.

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 reaction in which an element or molecule is added to unsaturated hydrocarbons is called addition reaction. In the above reaction unsaturated hydrocarbon is converted into saturated hydrocarbon.

Concentration of solution is mass of solute upon mass of solution by 100 so mass of solute is 60g and mass of solvent is 340 so mass of solution is 340+60 is equal to 400 we put these values in formula so 60/400×100=15%.

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.

Iodine is an essential mineral required for the production of thyroxine hormone by the thyroid gland. Thyroxine regulates the metabolism of carbohydrates, fats, and proteins in the body. A deficiency of iodine can lead to conditions like goiter, causing a swollen neck. Hence, consuming iodine-rich foods or iodized salt is crucial for maintaining proper thyroid function.

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.

Because rats do not cause harm to the plants whereas bacteria,fungi and viruses cause diseases in plants..

The National Education Policy 2020 aims to bring transformational reforms in school and higher education and thus shape India into a global knowledge superpower.

• This policy will usher in sweeping changes to the education policy of the country, including a renaming of the Ministry of Human Resource Development as the Education Ministry.

Key Points

• NEP 2020 is based on the principle that education must develop not only cognitive capacities but also social, ethical, and emotional capacities and dispositions.
• NEP-2020 has given the emphasis on conceptual understanding, inquiry-based learning, creativity, critical thinking, human ethical values, and constitutional values.
• It proposes that experiential learning should be encouraged to promote conceptual understanding as experiential learning refers to learning by gaining experience through active involvement.
• As per National education policy 2020, education must adopt experiential learning including hands-on learning, arts-integrated and sports-integrated education, story-telling-based pedagogy, etc.

Hence, it is clear that instead of limiting classroom learning to textbooks, National Education Policy 2020 suggests that learning and education should be focused towards inquiry and development of critical thinking. ​

Different eye colour is a genetic variation.

Stomach secretes the enzyme pepsin and pancreas produces trypsin. Both of them break down protein.

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.

The primary purpose of respiration in living organisms is to break down food sources, such as glucose, to release energy for cellular needs. This process involves the intake of oxygen to facilitate the breakdown of food molecules and the production of ATP, the cellular energy currency. Without respiration, cells would not be able to generate the necessary energy for essential functions.

Synonym of Diatribe: - The correct option is: B: Tirade. Explanation: - Both "diatribe" and "tirade" refer to a long, angry, and critical speech or piece of writing that strongly criticizes someone or something. - The other options are not synonyms of "diatribe" for the following reasons: - A: Debate refers to a formal discussion on a specific topic in which opposing arguments are put forward. - C: Monologue refers to a long speech by one person, especially in a play, movie, or as part of a theatrical performance. - D: Oration refers to a formal, usually ceremonial, speech delivered in public.

सही उत्तर है - “देख रहा था।”

• अशुद्ध वाक्य:- मैं दो घंटे से आपकी प्रतीक्षा देख रहा था।
• शुद्ध वाक्य:- मैं दो घंटे से आपकी प्रतीक्षा कर रहा था।

Key Points

• ‘मैं दो घंटे से आपकी प्रतीक्षा देख रहा था' वाक्य में ‘देख’ शब्द वाक्य अशुद्धि का कारण है।
• अत: वाक्य में वर्तनी संबंधी अशुद्धता है।

Additional Information

• अशुद्ध वाक्यों में एक से अधिक विषय और एक से अधिक क्रिया होती है।
• दूसरी ओर, अशुद्ध वाक्यों में त्रुटियाँ या गलतियाँ हो सकती हैं।
• शुद्ध वाक्यों में एक ही विषय और एक क्रिया होती है।
• शुद्ध वाक्य वे हैं जो किसी भी त्रुटि या गलतियों से मुक्त हैं।

Important Points

• वर्तनी वाले शब्द का अर्थ:- भाषा के किसी शब्द को को लिखने में प्रयुक्त वर्णों के सही क्रम को वर्तनी कहते हैं।
• भाषा की समस्त ध्वनियोँ को सही तरीके से उच्चारण करने के लिए वर्तनी की एकरुपता स्थापित की जाती है।

हिन्दी समाचार पत्र सबसे अधिक प्रकाशित होते हैं।

• गद्यांश के अनुसार:-
  •  आज हिंदी के समाचार पत्र सबसे अधिक प्रकाशित होते हैं। समाचार पत्रों के अनेक रूप हैं-दैनिक, साप्ताहिक, पाक्षिक और मासिक इनके प्रकाशन की प्रक्रिया जटिल होती है।​

Key Points

• हिन्दी या हिंदी जिसके मानकीकृत रूप को मानक हिंदी कहा जाता है,
• विश्व की एक प्रमुख भाषा है एवं भारत की एक राजभाषा है। केन्द्रीय स्तर पर भारत में सह-आधिकारिक भाषा अंग्रेजी है।
• यह हिन्दुस्तानी भाषा की एक मानकीकृत रूप है जिसमें संस्कृत के तत्सम तथा तद्भव शब्दों का प्रयोग अधिक है और अरबी-फ़ारसी शब्द कम हैं।
• हिन्दी संवैधानिक रूप से भारत की राजभाषा और भारत की सबसे अधिक बोली और समझी जाने वाली भाषा है।

Additional Informationअंग्रेजी:- 

• अंग्रेज़ी भाषा (अंग्रेज़ी: English) हिन्द-यूरोपीय भाषा-परिवार में आती है और इस दृष्टि से हिन्दी, उर्दू, फ़ारसी आदि के साथ इसका दूर का संबंध बनता है।
• ये इस परिवार की जर्मनिक शाखा में रखी जाती है। इसे दुनिया की सर्वप्रथम अंतर्राष्ट्रीय भाषा माना जाता है।
• यह दुनिया के कई देशों की मुख्य राजभाषा है और आज के दौर में कई देशों में (मुख्यतः भूतपूर्व ब्रिटिश उपनिवेशों में) विज्ञान, कंप्यूटर, साहित्य, राजनीति और उच्च शिक्षा की भी मुख्य भाषा है। अंग्रेज़ी भाषा रोमन लिपि में लिखी जाती है।

बंगाली:-

•  बांग्लादेश और भारत के पश्चिम बंगाल और उत्तर-पूर्वी भारत के त्रिपुरा तथा असम राज्यों के कुछ प्रान्तों में बोली जानेवाली एक प्रमुख भाषा है। 
• भाषाई परिवार की दृष्टि से यह हिन्द यूरोपीय भाषा परिवार का सदस्य है।
• इस परिवार की अन्य प्रमुख भाषाओं में हिन्दी, नेपाली, पंजाबी, गुजराती, असमिया, ओड़िया, मैथिली इत्यादी भाषाएँ हैं।
• बंगाली बोलने वालों की सँख्या लगभग 23 करोड़ है और यह विश्व की छठी सबसे बड़ी भाषा है।
• इसके बोलने वाले बांग्लादेश और भारत के अलावा विश्व के बहुत से अन्य देशों में भी फैले हैं।

उर्दू:-

• भाषा विज्ञान के आधार पर हिंदी और उर्दू एक ही भाषा है। नस्तालीक़ लिपि में लिखी गई हिंदी भाषा को उर्दू कहा जाता है।
• उर्दू का स्वतन्त्र व्याकरण नहीं है। उर्दू भाषा हिन्द आर्य भाषा है। उर्दू भाषा हिन्दुस्तानी भाषा की एक मानकीकृत रूप मानी जाती है।
• उर्दू में संस्कृत के तत्सम शब्द न्यून हैं और अरबी-फ़ारसी और संस्कृत से तद्भव शब्द अधिक हैं।
• ये मुख्यतः दक्षिण एशिया में बोली जाती है। यह भारत की शासकीय भाषाओं में से एक है तथा पाकिस्तान की राष्ट्रभाषा है।
• इस के अतिरिक्त भारत के राज्य जम्मू और कश्मीर की मुख्य प्रशासनिक भाषा है। साथ ही तेलंगाना, दिल्ली, बिहार और उत्तर प्रदेश की अतिरिक्त शासकीय भाषा है।