Chandigarh TGT Science - Non Medical Mock Test - 4 - SSA Chandigarh MCQ

Spreadsheet program
A spreadsheet program is a computer program that organizes data in rows and columns of cells. It is commonly used to perform calculations, analyze data, and create charts or graphs. In the context of keeping a record of the money earned from mowing lawns over the summer, a spreadsheet program would be the most suitable choice. Here's why:
- Organizes data in rows and columns: A spreadsheet program allows you to input and organize data in a tabular format, with rows representing individual records and columns representing different attributes or variables. This structure is ideal for keeping track of earnings, dates, and other relevant information related to lawn mowing jobs.
- Performs calculations: Spreadsheet programs have built-in formula functions that enable you to perform calculations and manipulate data. For example, you can easily calculate the total earnings for the summer by summing up the amounts from the respective cells.
- Provides data analysis tools: With a spreadsheet program, you can analyze your earnings data by using functions like averages, sorting, filtering, and creating charts or graphs. This allows you to gain insights and visualize trends or patterns in your lawn mowing business.
- User-friendly interface: Spreadsheet programs typically have a user-friendly interface that allows you to easily input, edit, and navigate through data. You can format cells, apply conditional formatting, and customize the appearance of your spreadsheet to make it more visually appealing and organized.
- Data storage and retrieval: Spreadsheet programs provide a convenient way to store and retrieve data. You can save your spreadsheet as a file on your computer or in the cloud, ensuring that your records are easily accessible and can be updated as needed.
In conclusion, a spreadsheet program is the most suitable choice for organizing and managing the data related to your lawn mowing earnings. It offers the necessary features and functionality for efficient record-keeping, calculations, analysis, and data storage.

The correct answer is option B: i and iii.
Explanation:
- A line printer prints an entire line at a time, which means it prints all the characters in a line simultaneously.
- It allows multiple copies to be taken at a time, which means it can print multiple copies of the same line without having to print each copy separately.
- However, a line printer is an impact printer, not a non-impact printer. Impact printers use a mechanism that physically strikes an inked ribbon against the paper to create an image, whereas non-impact printers use methods like heat or lasers to transfer the image onto the paper.
- Lastly, a line printer does not print one character at a time. It prints an entire line, not individual characters.
To summarize, a line printer prints an entire line at a time and allows multiple copies to be taken at once. Therefore, the correct answer is option B: i and iii.

1. Seek time: Seek time is the time taken by the disk drive to position the read/write head to the desired track on the disk. It involves moving the head arm across the platter to access the required data. Seek time is crucial because it directly affects the overall time required to access data on the disk.


2. Rotational time: Rotational time, also known as latency or rotational delay, is the time taken for the disk platter to rotate and bring the desired data under the read/write head. It depends on the rotational speed of the disk and the position of the data on the platter. It is an important factor as it contributes to the overall access time.


3. Transmission time: Transmission time refers to the time taken to transfer the data from the disk to the computer's memory or vice versa. It depends on the transfer rate of the disk and the speed of the data bus. While important, it is not specific to accessing data on the disk.


4. Waiting time: Waiting time refers to the time spent by the disk drive in handling other requests or performing internal operations before it can process the data access request. It includes time spent in the disk queue, waiting for other tasks to complete, or performing internal tasks like error correction. While it can affect the overall system performance, it is not directly related to accessing data on the disk.

In conclusion, the most crucial time while accessing data on the disk is the seek time, as it involves positioning the read/write head to the desired track. However, it is important to consider other factors like rotational time, transmission time, and waiting time to fully understand the overall process of accessing data on the disk.

To activate the previous cell in a pre-selected range, you need to press a specific key. Let's go through each option to find the correct key.
A: The Alt key
- The Alt key is not used to activate the previous cell in a pre-selected range. It has other functionalities in Excel, such as accessing the ribbon menu.
B: The Tab key
- The Tab key is used to move to the next cell in a pre-selected range, not the previous cell. Pressing Tab will move the cursor to the cell on the right.
C: The Enter key
- The Enter key is used to move to the cell below the current cell in a pre-selected range. It does not activate the previous cell.
D: None of these
- This is the correct answer. None of the options provided (Alt key, Tab key, Enter key) are used to activate the previous cell in a pre-selected range.
In conclusion, the correct key to activate the previous cell in a pre-selected range is not listed among the options provided. Therefore, the answer is D: None of these.

Use structure “subject + auxiliary + past participle + by + object”
As per the given above sentence is given in Passive Voice.
The mansion was being furnished by the lady of the house.
Hence , option B will be correct answer .

The Sahara Desert in North Africa is the largest hot desert in the world, covering an area of over 9 million square kilometers (3.6 million square miles).

Useful strategies for teaching students with mental retardation include the following:

• Teach one concept or activity component at a time
• Teach one step at a time to help support memorisation and sequencing
• Teach students in small groups, or one-on-one if possible
• Always provide multiple opportunities to practice skills in a number of different settings
• Use physical and verbal prompting to guide correct responses, and provide specific verbal praise to reinforce these responses

'बेमिसाल' शब्‍द का पर्यायवाची अद्भुत है।

आचार्य - शिक्षक

यतीम - बेसहारा

योग्य -  श्रेष्ठ

The image of the object can be located on the screen for two positions of convex lens such that u and v are exchanged.
The separation between two positions of the lens is d = 20cm

 

From the figure.
u₁ + v₁ = 90 cm
v₁ − u₁ = 20 cm
Solving
v₁ = 55cm, u₁ = 35cm
From lens formula,

Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.
Visible: Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.

Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.

X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.

Gamma ray: Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.

Al metal is used to remove Ag₂S.

NaHCO₃ in hot water is used as electrolyte and dissolves displaced S^2-. 

Increasing order of ligand field strength
l^- < Br^- < SCN^- < CI^- < S^2- < F^- < OH^-< H₂O < NCS^- < edta^4- < NH₃ < en < CN^- < CO

More noble metal is cathode and is protected from rusting by active metal which is anode.

Since we know that 1litre -1000ml 1ml-1\1000litre So,12ml-1/1000×12=12/1000 =0.012

A species which is oxidised (deelectronation) is a reducing agent.

Thus, (ii) and (iv) represent reducing behaviour of H₂O₂.

The correct answer is Option A.

The purpose of a salt bridge is not to move electrons from the electrolyte, rather maintain charge balance because the electrons are moving from one-half cell to the other. The electrons flow from the anode to the cathode thus if a salt bridge is removed between the half cells, the voltage becomes zero.
 

n can vary from to 10 and can be +ve or –ve.

In the case of a strong acid and a weak base combining to form a salt, the resulting compound will be acidic with a pH less than 7. The dominance of the strong acid component in the salt contributes to its acidic nature, leading to a pH below the neutral value of 7.

The correct answer is option A

Conducting power of one mole of ions at a given temperature at infinite dilution is known as limiting molar conductivity. In other words, When the concentration of the electrolyte approaches zero, the molar conductivity is known as limiting molar conductivity.

f’(x) > 0 
=> f(x) is increasing
f’’(x) < 0  => f(x) is convex

Maximum and minimum value of the data 23, 45, 34, 21, 89, 45, 47, 91 are 21 and 91.
Range = 91 – 21 = 70
 

∫dx/(x² - a⁴b⁴)
= ∫dx/(x² - a²b²)²
= ∫dx/(x² - a²b²)(x² + a²b²)
As by formula dx/(n - n)(n + n) = 1/2n log|(x - n)/(x + n)|
= 1/2n log|(x - a²b²)/(x + a²b²)|

An identity function, also called an identity relation or identity map or identity transformation, is a function that always returns the same value that was used as its argument. That is, for f being identity, the equality f(x) = x holds for all x.

f(x) = sinx.cosx
f’(x) = -sin²x + cos²x
-sin²x + cos²x = 0
sin²x = cos²x
tan²x = 1
tanx = +-1
for tan x = 1, x = π/4
for tan x = -1, x = 3π/4
At x = π/4, f(π/4) = ½
At x = 3π/4, f(3π/4) = -½
At π/4 is the local maxima.

Since, y = e^x and y = x do not meet for any x ∈ R ∴ A ∩ B = φ.