NVS TGT Science Mock Test - 5 - NVS TGT/PGT MCQ

Techniques for Resolving Conflicts and Synchronizing Processes
There are several techniques that can be used to resolve conflicts and synchronize processes in various systems. These techniques include:
1. Mutual Exclusion:
- This technique ensures that only one process accesses a shared resource at a time.
- It uses locks, semaphores, or other synchronization mechanisms to enforce exclusive access.
- By preventing concurrent access, conflicts and data corruption can be avoided.
2. Busy Waiting:
- In this technique, a process continuously checks for the availability of a resource.
- It keeps looping until the resource becomes available, which may waste CPU cycles and decrease overall system efficiency.
- However, it can be useful in situations where the waiting time is expected to be short.
3. Deadlock:
- Deadlock occurs when two or more processes are unable to proceed because each is waiting for a resource held by the other.
- It can be resolved using various techniques like resource allocation graphs, deadlock detection algorithms, and deadlock prevention algorithms.
4. Starvation:
- Starvation happens when a process is perpetually denied necessary resources or unable to progress.
- It can be resolved by implementing fair scheduling algorithms that ensure every process gets a fair share of resources.
In conclusion, mutual exclusion is the appropriate technique to resolve conflicts and synchronize processes. It ensures exclusive access to shared resources, preventing conflicts and data corruption. Busy waiting, deadlock, and starvation, on the other hand, are potential issues that need to be addressed to maintain system efficiency and fairness.

Adjusting the width of table columns in a document can be done using different methods. Here is a detailed solution:
Method 1: Using the table menu
- Click on the table menu in your document.
- Find the option for column width and click on it.
- Make the necessary adjustments to the width of the columns as needed.
Method 2: Dragging the vertical gridline
- Locate the vertical gridline between two columns in the table.
- Click and hold the vertical gridline.
- Drag it to the left or right to adjust the width of the columns accordingly.
Method 3: Dragging the column markers on the table ruler bar
- Look for the table ruler bar at the top of the document.
- Find the markers that represent the columns in the table.
- Click and hold the marker of the column you want to adjust.
- Drag it to the left or right to change the width of the respective column.
Method 4: Combining methods 2 and 3 (recommended)
- Use a combination of dragging the vertical gridlines and the column markers to achieve the desired column width adjustments.
- Dragging the vertical gridlines can provide a more precise control over column width, while dragging the column markers on the table ruler bar gives a visual representation of the changes.
By following these methods, you can easily adjust the width of table columns in your document. Remember to save your changes after making the adjustments.

The root to eliminate issues in the classroom is to identify the reason for a particular behaviour. Only then the issue could be resolved. The teacher must know the cause of misbehaviour, which could arise out of some confusion within the students, and the teacher then can effectively solve the problem. This also helps the teacher to make interpersonal relationship with the students, as a result of which the students confide more in their teacher.

Mr. Rathore uses a lot of audio-visual aids while teaching. The main reason for doing so is to take care of the requirements of all the children. Audio-visual aids make the learning permanent. They stimulate both aural and visual senses of children. Some children understand better on observation i.e. visual, whereas other students understand better on aural stimulation. Thus, requirements of all the students are taken care of.

Students will respect the teacher the most, if he/she is sincere. The teacher must be able to reflect sincerity in her attitude and behaviour. She could do this by showing concern and care for students. These positive interpersonal behaviours, where teachers spend time talking to students about their personal or social issues, promote a sense of belonging and strengthen the bond between the teacher and the students.

When the light travels through the glass, different spectrums of light travel through at different speeds. Spectrums with short wavelengths get slowed down much more than those with longer wavelengths. When light is slowed as it enters a medium it is refracted. That is, it changes direction. The more it's slowed, the further towards the “normal line” it will go. So slower light will bend more than faster light. The differences in speed that each spectrum of light has as it passes through the medium causes different angles of refraction, which in turn causes dispersion. As the light leaves the prism it disperses even more due to the light speeding up again. Because each spectrum travels at different speeds while in the glass they don't reach the other side at the same time. So, the red spectrum exits first and speeds up first while the blue or violet spectrum exits last and speeds up last.

(c) They have the same velocities at any instant

Explanation: Two different masses falling freely near the moon’s surface have the same velocities at any instant

From ohm’s law, I = V/R = 220/440 = 0.5 A

H = I² × R × t = (0.5)² × 440 × 10 = 1100 J

Because when the light of sun travel a long distance it meets with large amount of particles present in atmosphere. When they crush with small particles they got scattered due to which the blue color which have shorter wavelength, scatters most by which the sky seems blue.

The maximum number of electrons present in a shell = 2n2

 

Where n = shell number

Value of n for K shell = 1

Therefore, Maximum number of electrons in K shell = 2n2 = 2(1) = 2

Value of n for L shell = 2

Therefore, Maximum number of electrons in L shell = 2(2)2 = 8

Thus, total no. of electrons = 2 + 8 = 10

They are position isomers. 
Position isomerism :- When two or more compounds with the same molecular formula differ in the position of substituent atom or functional group on the carbon atom, they are called position  isomers and this phenomenon  is termed as position isomerism.
 

As from law of conservation of mass:-mass of reactants=mass of product Therefore, mass of compound A + mass of compound B=mass of compound C So, 5g + 10g= 15g

Copper is a chemical element with symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.

The IUPAC name of CH₃CHO is Ethanal.

The IUPAC name for CH₃CHO is Ethanal, also known as Acetaldehyde. It has 2 carbons, so the term “Eth” is used as prefix and it belongs to the aldehyde group, so the term “al” is used as suffix.

Contractile proteins, such as actin and myosin, are found in muscles. These proteins enable muscle contraction.

Hormone secretion is regulated by feedback mechanisms, which ensure that hormone levels are maintained within a narrow range to support proper physiological functions. Feedback loops involving various glands and organs monitor hormone levels in the body and adjust secretion rates accordingly. This precise regulation is crucial for maintaining overall health and ensuring that bodily processes function optimally.

Organism receiving identical alleles of a particular gene from both parents is a homozygote.
Explanation:
- Homozygote: An organism that receives identical alleles for a particular gene from both parents is called a homozygote.
- Homozygotes can be either homozygous dominant (having two dominant alleles) or homozygous recessive (having two recessive alleles).
- In a homozygote, both alleles are the same, resulting in the expression of the same trait or characteristic.
- The alleles received from each parent can be either dominant or recessive, but they are always identical.
- Homozygotes are often used in genetic studies to understand the inheritance patterns of specific traits.
- The opposite of a homozygote is a heterozygote, where an organism receives different alleles for a particular gene from each parent.
- Homozygotes can be advantageous in some cases, such as when the identical alleles provide resistance to a particular disease or increase fitness in a specific environment.

Enzymes in our body are specific in their action and can only break down certain substances. This specificity is why we cannot obtain energy from non-digestible substances like coal. Enzymes play a crucial role in the digestion process by breaking down complex molecules into simpler forms that our bodies can absorb and utilize for energy.

In the given context we are talking about the way in which he convinced his parents for the school trip and since he did it very quickly, it is evident that it was a very easy thing to do by his standard.

A Stalking horse: Pretence 
A slap on the wrist: A very mild punishment 
A piece of cake: Something that is very easy to achieve 
A toss-up: An uncertain result that can go either way 
Among the given options, it is clear that option C is correct in the given context as it expresses the actual meaning of the given context.
This makes option C the correct choice among the given options.

दिये गए विकल्पों में से ‘रामायण’ शब्द ‘पुल्लिंग’ नहीं है। अतः इसका सही उत्तर विकल्प 3 ‘रामायण’ होगा, अन्य विकल्प सही उत्तर नहीं हैं।

अन्य विकल्प:

विशेष:

सही उत्तर गर्मी से पदार्थ फैलते हैं और ठंड से सिकुड़ते हैं। है।

Key Points

• गर्मी से पदार्थ फैलते हैं और ठंड से सिकुड़ते हैं।- वाक्य संयुक्त वाक्य है।
• उपरोक्त वाक्य में दो साधारण वाक्य समुच्चयबोधक शब्द (और) की सहायता से जुड़कर संयुक्त वाक्य बना रहे हैं।
• संयुक्त वाक्य- जिस वाक्य में दो या दो से अधिक स्वतंत्र साधारण वाक्य या प्रधान उपवाक्य उपस्थित हों तो उस वाक्य को संयुक्त वाक्य कहते हैं।
• उदाहरण- रमेश बीमार है इसलिए आज खेलने नहीं आया है।
• संयुक्त वाक्य की पहचान- संयुक्त वाक्य की पहचान वाक्य में उपस्थित संयोजक, विभाजक, विरोधदर्शक या परिणामबोधक शब्दों से की जा सकती है तथा वाक्य में उपस्थित स्वतंत्र साधारण वाक्य या प्रधान उपवाक्य को देखकर भी की जा सकती है।

अन्य विकल्प-

• जहाँ अभी समुद्र है, वहाँ कभी जंगल था।- मिश्र वाक्य है, यह वाक्य जहाँ- वहाँ से मिलकर बना हुआ है, अतः यह मिश्र वाक्य का उदाहरण है।
• बुरा न मानो तो एक बात कहूँ।- मिश्र वाक्य है, 'तो' संयोजक आने पर यह मिश्र वाक्य का उदाहरण है।
• सभापति ने अपना भाषण पढ़ा।- सरल वाक्य है, इसमें एक उद्देश्य और एक विधेय है। (उद्देश्य - सभापति, विधेय- अपना भाषण पढ़ा।)

Additional Information

सही उत्तर है- ‘अत्यंत कम’।

• "ऊँट के मुँह में जीरा"- इस लोकोक्ति का अर्थ हैं किसी वस्तु का जरुरत से बहुत कम उपलब्ध होना।
• वाक्य प्रयोग- एक गिलास दूध मेरे लिए ऊँट के मुहं में जीरे के समान हैं।

Additional Information

लोकोक्ति की परिभाषा - ‘लोक + उक्ति’ शब्दों से मिलकर बना है जिसका अर्थ है- लोक में प्रचलित उक्ति या कथन।
जब कोई पूरा कथन किसी प्रसंग विशेष में उद्धत किया जाता है तो लोकोक्ति कहलाता है। इसी को कहावत भी कहते है।

उदाहरण-

• अंधी पीसे, कुत्ते खायें : मूर्खों को कमाई व्यर्थ नष्ट होती है।
  • वाक्य प्रयोग - राम ने उसकी मां के ना रहने पर बड़ी मुश्किल से खाना बनाया परंतु उसका पड़ोसी आकर सारा खाना खा गया, यह तो वही बात हुई अंधी पीसे कुत्ता खाए।
• अपनी पगड़ी अपने हाथ : अपनी इज्जत अपने हाथ होती है।
  • वाक्य प्रयोग - विवेक ने श्रीनाथ जी से कहा – आप यहाँ से चले जाइए, क्योंकि अपनी पगड़ी अपने हाथ होती है।

ऐसा आचरण हो कि दूसरे आप के प्रति भक्ति रखें।

लोक-हित कारिणी शक्ति को अस्वीकार करना।