List of practice Questions

A blanking operation is performed on C20 steel sheet to obtain a circular disc having a diameter of 20 mm and a thickness of 2 mm. An allowance of 0.04 is provided. The punch size used for the operation is _____mm (rounded off to 2 decimal places).

Find the odd one out in the set: {19, 37, 21, 17, 23, 29, 31, 11}

The bar chart gives the batting averages of VK and RS for 11 calendar years from 2012 to 2022. Considering that 2015 and 2019 are world cup years, which one of the following options is true?

A surveyor observes a zenith angle of 93° 00' 00" during a theodolite survey. The corresponding vertical angle is

A mechanical ventilator operating in volume controlled mode is set to deliver 600mL of tidal volume (TV) with a flow rate of 40 L/min. The frequency of breathing is set to 10 breaths per minute. If the flow rate is doubled which one of the following happens ?

The order and the number of classes present in a group with the irreducible representations A₁, A₂, B₁, B₂, E₁, and E₂, are, respectively,

A vibratory system consists of mass m, a vertical spring of stiffness 2k and a horizontal spring of stiffness k. The end A of the horizontal spring is given a horizontal motion x_A = αsinwt. The other end of the spring is connected to an inextensible rope that passes over two massless pulleys as shown. Assume m = 10 kg, k = 1.5 kN/m, and neglect friction. The magnitude of critical driving frequency for which the oscillations of mass m tend to become excessively large is ____rad/s (answer in integer).

Read the following source carefully and answer the questions that follow:
Print Comes to India
From 1780, James Augustus Hickey began to edit the Bengal Gazette, a weekly maga zine that described itself as ‘a commercial paper open to all, but influenced by none’. So it was private English enterprise, proud of its independence from colonial influence, that began English printing in India. Hickey published a lot of advertisements, including those that related to the import and sale of slaves. But he also published a lot of gossip about the Company’s senior officials in India. Enraged by this, Governor-General War ren Hastings persecuted Hickey, and encouraged the publication of officially sanctioned newspapers that could counter the flow of information that damaged the image of the colonial government. By the close of the eighteenth century, a number of newspapers and journals appeared in print. There were Indians, too, who began to publish Indian news papers. The first to appear was the weekly Bengal Gazette, brought out by Gangadhar Bhattacharya, who was close to Raja Rammohan Roy.

Read the following source carefully and answer the questions that follow:
Loans from Cooperatives
Besides banks, the other major source of cheap credit in rural areas are the cooperative societies (or cooperatives). Members of a cooperative pool their resources for coopera tion in certain areas. There are several types of cooperatives possible such as farmers cooperatives, weavers cooperatives, industrial workers cooperatives, etc. Krishak Coop erative functions in a village not very far away from Sonpur. It has 2300 farmers as members. It accepts deposits from its members. With these deposits as collateral, the Cooperative has obtained a large loan from the bank. These funds are used to provide loans to members. Once these loans are repaid, another round of lending can take place. Krishak Cooperative provides loans for the purchase of agricultural implements, loans for cultivation and agricultural trade, fishery loans, loans for construction of houses and for a variety of other expenses.

A 2m × 2m tank of 3 m height has inflow, outflow and stirring mechanisms. Initially, the tank was half-filled with fresh water. At t = 0, an inflow of a salt solution of concentration 5 g/m³ at the rate of 2 litre/s and an outflow of the well stirred mixture at the rate of 1 litre/s are initiated. This process can be modelled using the following differential equation:
\(\frac {dm}{dt}+\frac {m}{6000+t}=0.01\)
where m is the mass (grams) of the salt at time t (seconds). The mass of the salt (in grams) in the tank at 75% of its capacity is _____ (rounded off to 2 decimal places).

The value of the integral \( \int_{0}^{\infty} \frac{dx}{e^x + e^{-x}} \) is:

Aerobic dehydrogenase in biological oxidation contains:

The question of whether colonialism was ‘good’ is a complex and debated topic. Some argue that colonialism led to advancements in technology, infrastructure, and education in some regions. However, it also brought about immense suffering, exploitation, and the loss of sovereignty for many indigenous populations. The negative consequences, including cultural erosion, displacement, and violence, often outweigh any potential benefits. In contemporary discourse, it is generally recognized that the harms of colonialism far outweigh any perceived ‘good,’ and its legacy continues to shape global inequalities and injustices. Which of the following is/are most appropriate conclusion(s) of the above passage?
Which of the following is/are most appropriate conclusion(s) of the above passage? 
I. It is important to see both the ‘good’ and ‘bad’ of colonialism to understand its true impact. 
II. Irrespective of the ‘good’ that colonialism brought, it can never justify the ‘bad’ it perpetrated. 
III. It was necessary to do ‘bad’ to attain the good in colonialism. 
IV. discussions on effects of colonialism must end with attainment of independence, otherwise it tends to become a continuing excuse.
Choose the most appropriate answer

“All paintings jump. Some paintings are plants. All basketballs are plants.” Dragon is a plant that jumps. Which of the following is true?

Excessive use of mobile phones has been associated with a range of health issues. Prolonged screen time and constant connectivity can lead to physical problems like eye strain, neck and back pain, and disrupted sleep patterns. Additionally, excessive use of mobile phones raises concerns about the potential long-term health effects of exposure to electromagnetic radiation. Therefore, one should not use mobile phones. Which of the following assumption is made in the above passage?

A concrete column section of size 300 mm × 500 mm as shown in the figure is subjected to both axial compression and bending along the major axis. The depth of the neutral axis (X_u) is 1.1 times the depth of the column, as shown.

The maximum compressive strain (ε_c) at highly compressive extreme fiber in concrete, where there is no tension in the section, is ______ × 10^-3(rounded off to 2 decimal places).

Anisha must decide how to seat her friends - V, W, X, Y, Z - at a circular wedding table in accordance with the following conditions:
I. Z and W must sit next to each other. 
II. Y may only sit with V if Y is also sitting with Z. 
III. X is happy to sit with anyone. If Y and X arrive early and take seats 1 and 3, which of the following is a valid arrangement ?

In the EPR spectrum of an aqueous solution of VOSO₄ at room temperature, the total number of hyperfine splitting signals is

Principle: Any person who knowingly disseminates false information with the intent to defraud shall be guilty of an offence.
Facts: Dravid shares a news article containing false information about a popular cryptocurrency investment scheme. He claims it’s a groundbreaking opportunity. Many people invest and later lose money. 
Is Dravid guilty of an offence?

The two plots below give the following information about six firms A, B, C, D, E, and F for 2019 and 2023.
PAT: The firm’s profits after taxes in Rs. crores,
ES: The firm’s employee strength, that is the number of employees in the firm, and PRD: The percentage of the firm’s PAT that they spend on Research and Development (R&D).
In the plots, the horizontal and vertical coordinates of point representing each firm gives their ES and PAT values respectively. The PRD values of each firm are proportional to the areas around the points representing each firm. The areas are comparable between the two plots, i.e., equal areas in the two plots represent the same PRD values for the two years.

The passage below is accompanied by four questions. Based on the passage, choose the best answer for each question.
The job of a peer reviewer is thankless. Collectively, academics spend around 70 million hours every year evaluating each other’s manuscripts on the behalf of scholarly journals — and they usually receive no monetary compensation and little if any recognition for their effort. Some do it as a way to keep abreast with developments in their field; some simply see it as a duty to the discipline. Either way, academic publishing would likely crumble without them.
In recent years, some scientists have begun posting their reviews online, mainly to claim credit for their work. Sites like Publons allow researchers to either share entire referee reports or simply list the journals for whom they’ve carried out a review….
The rise of Publons suggests that academics are increasingly placing value on the work of peer review and asking others, such as grant funders, to do the same. While that’s vital in the publish-or-perish culture of academia, there’s also immense value in the data underlying peer review. Sharing peer review data could help journals stamp out fraud, inefficiency, and systemic bias in academic publishing.….
Peer review data could also help root out bias. Last year, a study based on peer review data for nearly 24,000 submissions to the biomedical journal eLife found that women and non Westerners were vastly underrepresented among peer reviewers. Only around one in every five reviewers was female, and less than two percent of reviewers were based in developing countries…. Openly publishing peer review data could perhaps also help journals address another problem in academic publishing: fraudulent peer reviews. For instance, a minority of authors have been known to use phony email addresses to pose as an outside expert and review their own manuscripts.…
Opponents of open peer review commonly argue that confidentiality is vital to the integrity of the review process; referees may be less critical of manuscripts if their reports are published, especially if they are revealing their identities by signing them. Some also hold concerns that open reviewing may deter referees from agreeing to judge manuscripts in the first place, or that they’ll take longer to do so out of fear of scrutiny….
Even when the content of reviews and the identity of reviewers can’t be shared publicly, perhaps journals could share the data with outside researchers for study. Or they could release other figures that wouldn’t compromise the anonymity of reviews but that might answer important questions about how long the reviewing process takes, how many researchers editors have to reach out to on average to find one who will carry out the work, and the geographic distribution of peer reviewers.
Of course, opening up data underlying the reviewing process will not fix peer review entirely, and there may be instances in which there are valid reasons to keep the content of peer reviews hidden and the identity of the referees confidential. But the norm should shift from opacity in all cases to opacity only when necessary.

Which of the following features are considered as critical in qualitative research?

A 10 kg tomato pulp is concentrated from an initial moisture content of 90% (wet weight basis) to 35% (wet weight basis). The weight of the concentrate in kg is_____(round off to 2 decimal places).

The passage below is accompanied by four questions. Based on the passage, choose the best answer for each question.
. . . [T]he idea of craftsmanship is not simply nostalgic. . . . Crafts require distinct skills, an all round approach to work that involves the whole product, rather than individual parts, and an attitude that necessitates devotion to the job and a focus on the communal interest. The concept of craft emphasises the human touch and individual judgment.
Essentially, the crafts concept seems to run against the preponderant ethos of management studies which, as the academics note, have long prioritised efficiency and consistency. . . . Craft skills were portrayed as being primitive and traditionalist.
The contrast between artisanship and efficiency first came to the fore in the 19th century when British manufacturers suddenly faced competition from across the Atlantic as firms developed the “American system” using standardised parts. . . . the worldwide success of the Singer sewing machine showed the potential of a mass-produced device. This process created its own reaction, first in the form of the Arts and Crafts movement of the late 19th century, and then again in the “small is beautiful” movement of the 1970s. A third crafts movement is emerging as people become aware of the environmental impact of conventional industry.
There are two potential markets for those who practise crafts. The first stems from the existence of consumers who are willing to pay a premium price for goods that are deemed to be of extra quality. . . . The second market lies in those consumers who wish to use their purchases to support local workers, or to reduce their environmental impact by taking goods to craftspeople to be mended, or recycled.
For workers, the appeal of craftsmanship is that it allows them the autonomy to make creative choices, and thus makes a job far more satisfying. In that sense, it could offer hope for the overall labour market. Let the machines automate dull and repetitive tasks and let workers focus purely on their skills, judgment and imagination. As a current example, the academics cite the “agile” manifesto in the software sector, an industry at the heart of technological change. The pioneers behind the original agile manifesto promised to prioritise “individuals and interactions over processes and tools”. By bringing together experts from different teams, agile working is designed to improve creativity.
But the broader question is whether crafts can create a lot more jobs than they do today. Demand for crafted products may rise but will it be easy to retrain workers in sectors that might get automated (such as truck drivers) to take advantage? In a world where products and services often have to pass through regulatory hoops, large companies will usually have the advantage.
History also suggests that the link between crafts and creativity is not automatic. Medieval craft guilds were monopolies which resisted new entrants. They were also highly hierarchical with young men required to spend long periods as apprentices and journeymen before they could set up on their own; by that time the innovative spirit may have been knocked out of them. Craft workers can thrive in the modern era, but only if they don’t get too organised.

As per Bronsted-Lowry concept, acid is defined as: