Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

If `x = sin theta, y = sin^(3) theta` then `(d^(2)y)/(dx^(2))` at `theta = (pi)/(2)` is …….A. 3B. 6C. `(1)/(6)`D. `(1)/(3)`

Answer» Correct Answer - B
We have, `x = sin theta, y = "sin"^(3) theta`
`:. (dy)/(dx) = ((dy)/(d theta))/((dx)/(d theta)) = (3"sin"^(2) theta(cos theta))/(cos theta)`
`implies (dy)/(dx) = 3 "sin"^(2) theta`
Now, `(d^(2)y)/(dx^(2)) = 3 (2 "sin" theta cos theta) (d theta)/(dx)`
at `theta = (pi)/(2), (d^(2) y)/(dx^(2)) = 6 "sin" ((pi)/(2)) = 6 xx 1 = 6`
2.

If `f(x) = 3x + 6 ,g(x) = 4x + k` and `fog(x) = gof(x) ` then k …..A. `-9`B. 18C. `(1)/(9)`D. 9

Answer» Correct Answer - D
We have,
`f(x) = 3x + 6, g(x) = 4x + k`
Since, for (X) = gof (x)
`implies f(g) (x) = g(f(x))`
`implies f(4x + k) = g(3x + 6)`
`implies 3(4x + k) + 6 = 4 (3x + 6) + k`
`implies 3k - k = 24 - 6`
`implies 2k = 18`
`implies k = 9`
3.

To declare an array S that holds a 5-character string, you would write(A) char S[5](B) String S[5](C) char S[6](D) String S[6]

Answer»

Correct option -(A) char S[5] 

Explanation:-

A string is nothing but a char array. 

4.

If three dices are thrown then the probability that the sum of the numbers on their uppermost faces to be atleast 5 isA. `(1)/(53)`B. `(53)/(54)`C. `(1)/(54)`D. `(52)/(53)`

Answer» Correct Answer - B
If there dice are drawn, then `n (le) = 6^(3) = 216`
Let E the sum of the number on their uppermost faces are less than 5 as follows
(1,1,1), (1,1,2), (1,2,1), (2,1,1)
`:. N(E ) = 4`
Now, probability that the sum of the numbers on their uppermost faces to be atleast 5
`= 1 - P (E_(2)) = 1 - (4)/(216) = 1 - (1)/(54) = (53)/(54)`
5.

3 friends A, B and C are working in a company. The salary of A is Rs. 45000 per month. C's monthly salary is 3/5 of B's monthly salary. B's monthly salary is double of A's monthly salary. What is the total salary of A, B and C per month ?1. Rs. 1,80,0002. Rs. 1,90,0003. Rs. 1,89,0004. Rs. 1,79,000

Answer» Correct Answer - Option 3 : Rs. 1,89,000

Given:

⇒ A's salary = Rs.45000

Calculation:

⇒ B's salary = 45000 × 2 = Rs.90000

⇒ C's salary = 90000 × 3/5 = Rs.54000

∴ Total salary of A, B and C = 90000 + 45000 + 54000 = Rs.1,89,000

6.

A single discount equivalent to three successive discounts of 6%, 15% and 14% is:1. 34.357%2. 17.5%3. 68.714%4. 31.286%

Answer» Correct Answer - Option 4 : 31.286%

Given:

Successive discount = 6%, 15% and 14%

Concept used:

S.P = M.P × (100 – D1)/100 × (100 – D2)/100 × (100 – D3)/100

Discount = M.P – S.P 

Discount% = ((Discount)/(M.P)) × 100

Calcualtions:

Let MP be 100x

⇒ S.P = 100x × (100 – 6)/100 × (100 – 15)/100 × (100 – 14)/100

⇒ (100x × 94 × 85 × 86)/100 × 100 × 100)

⇒ 68.714x

Discount = 100x – 68.714x = 31.286x

Discount% = (31.286x/100x) × 100 = 31.286%

∴ The equivalent discount% is 31.286%

7.

A single discount equivalent to a discount series of 5%, 10%, 15% and 20% is:1. 43.86%2. 42.86%3. 40.86%4. 41.86%

Answer» Correct Answer - Option 4 : 41.86%

Given:

A series of Discounts 5%, 10%, 15%, 20%

Formula Used: 

 Equivalent = A + B + (AB)/100

Calculation:

Discount is written as negative 

 Equivalent discount for 5% and 10% = (– 5) + (–10) + {(– 5) × (– 10)}/100

⇒ (– 5) + (– 10) + (0.5)

⇒ (– 15 + 0.5)

⇒ (– 14.5)

⇒ Equivalent Discount for 5% and 10% = 14.5%

Now, Equivalent discount for 14.5% and 15% = (– 14.5) + (– 15) + {(– 14.5) × (– 15)}/100

⇒ (– 14.5) + (– 15) + (2.175)

⇒ (– 29.5 + 2.175)

⇒ (– 27.325)

⇒ Equivalent Discount for 5%, 10% and 15% = 27.325%

Now, Equivalent discount for 27.325% and 20% = (– 27.325) + (– 20) + {(– 27.325) × (– 20)}/100

⇒ (– 27.325) + (– 20) + (5.465)

⇒ (– 47.325 + 5.465)

⇒ (– 41.86)

⇒ Equivalent Discount for 5%, 10%, 15% and 20% = 41.86%

∴  A single discount equivalent to a discount series of 5%, 10%, 15% and 20% is 41.86%.

8.

If I play well, I _______ the match. (a) would win(b) will win (c) would have won

Answer»

Correct answer is (b) will win

9.

If you wrote neatly, you _______ get a prize. (a) would (b) will (c) would have

Answer»

Correct answer is (a) would

10.

Not more books! There aren’t enough ______ to put them on. A) leaves B) cases C) spaces D) shelves

Answer»

Correct option is D) shelves

11.

Briefly explain 'Control Room'

Answer»

A Control Room is a room serving as an operations centre where a facility or service can be monitored and controlled. A definition or description of a control room for security would be “a facility for the provision or procurement of assistance or advice for guarding, mobile patrol and mobile supervisory staff in routine and emergency situations”.

12.

Select The Suitable Antonyms.1. grateful (a) thankful (b) ungrateful (c) thoughtful2. fool (a) wise (b) idiot (c) block head3. never (a) always (b) not at all (c) not ever4. weakest (a) poorest (b) cheapest (c) strongest5. louder (a) stronger (b) softer (c) heavier

Answer»

1. (b) ungreateful

2. (a) wise

3. (a) always

4. (c) strongest

5. (b) softer

13.

A passion for design and _________ are essential for becoming a visual merchandiser?

Answer»

Creativity

A passion for design and Creativity are essential for becoming a visual merchandiser?

14.

What are the functions of a visual merchandiser?

Answer»

1. A Visual Merchandiser takes care of the window display representing a seasonal theme with mannequins the arrangement of merchandise according to concepts and stories. 

2. He decorates the window display in such a way that the customer gets excited by the brand and increases the walk-ins. 

3. A Visual Merchandiser also spends a lot of time training the store staff on how to place merchandise.

15.

The connecting symbol of facet “matter” is _______(a) Comma (,) (b) Semi colon (;) (c) Colon (:) (d) Dot(.)

Answer»

Correct option: (b)Semi colon (;)

16.

State the four areas that form the basic duties of a Merchandiser?

Answer»

The four areas forming duties and responsibilities of a Merchandiser are: 

Planning

Though the merchandisers may not be directly involved in the actual purchase of merchandise, they formulate the policies for the areas in which they are responsible.

Directing

It is a very important function of the merchandiser that he will guide and train buyers as and when the need arises.

Coordinating

The merchandise managers supervise the work of more than one buyer, hence they need to coordinate the buying effort of the buyers.

Controlling

Assessing not only the merchandise performance, but also the buyer’s performance as well as buying behaviour is part of the merchandise manager’s job.

17.

MINTS refers to – A. Active listening rules B. Capitalization rules C. Speaking rules D. Grammar rules

Answer»

Correct option: B. Capitalization rules

18.

If you don’t get out of my house, I’ll have you _____. A) to arrest B) arresting C) arrested D) be arrested

Answer»

Correct option is C) arrested

19.

Why is prototype necessary in design?

Answer»

Designing prototypes is one part of the process. But there are various approaches to prototyping and it is always necessary to select the correct approach to your product which fits into the time and resource constraints. This type of prototype helps to make changes easily and quickly.

20.

Radhika has been appointed as a fashion merchandiser in an export house. What is her role in the organization? a. To understand that design is not merely a paper-pencil activity. b. To ensure a rigorous process of quality control. c. To coordinate between the company and retailer to provide a wider platform for the product. d. To prepare a graded size chart for adherence by the production unit

Answer»

Correct answer is

c. To coordinate between the company and retailer to provide a wider platform for the product.

21.

Physical verification of stock helps in ………… a. Inaccuracy of Stock Register b. Reduces the possibility of fraud c. Hides the weakness of the system d. Helpful for overstocking

Answer»

d. Reduces the possibility of fraud

Physical verification of stock helps in Reduces the possibility of fraud.

22.

What is stock Verification? List two methods of Stock Verification.

Answer»

Stock verification is the process of systematic checking the holdings of the library to find out the missing items. 

Methods 

1. Accession Number 

2. Call number

23.

Why is sample prototype developed for any new design? a. To test in the market for responses to its visual appeal, practicality and commercial viability. b. To enough practice on rough raw material before doing it with final material c. To address and resolve technical problems that may be detected during manufacturing. d. To understand the USP of the company

Answer»

Correct answer is

a. To test in the market for responses to its visual appeal, practicality and commercial viability.

24.

Job analysis is a process for determining the ______. (a) Employee development (b) Job requirement (c) Staffing (d) Job Description

Answer»

Correct option: (b) Job requirement

25.

…….. was the first company to trade its shares in Demat form. (a) Tata Industries (b) Reliance Industries (c) Infosys (d) Birla Industries

Answer»

(b) Reliance Industries

26.

Rule ______ of General Financial Rules of Govt. of India provides the guidelines regarding the stock verification of library books. (a) Rule 141 of GFR (b) Rule 194 of GFR (c) Rule 156 of GFR (d) Rule 171 of GFR

Answer»

Correct option: (b) Rule 194 of GFR

27.

The rules and regulations of Stock exchange is framed by………….. guidelines. (a) RBI (b) Central Government (c) SEBI (d) BSE

Answer»

The rules and regulations of Stock exchange is framed by SEBI guidelines.

28.

A marketable document of title to a time deposit for a specified period may be referred to as a …………… (a) Treasury Bill (b) Certificate of Deposit (c) Commercial Bill (d) Government Securities

Answer»

(b) Certificate of Deposit

29.

Discuss the Types of Organization Structure .

Answer»

The Organizational Structures can be classified into TWO types which are : 

(i) Functional Structure : When activities within an organization are grouped on the basis of major functions , like Production, Finance , Marketing and Human Resource and Separate Departments are created for each of these Functions , a functional structure is Said to be Created . 

(ii) Divisional Structure : In a Divisional Structure , separate divisions are created within an Organization on the basis of product lines and supported by functions . Divisional Structure is suitable for a company manufacturing multiple products .

30.

How many times security can be sold in a secondary market? (a) Only one time (b) Two times (c) Three times (d) Multiple times

Answer»

(d) Multiple times

(d)Multiple times
31.

Define Organization as a Group Activity.

Answer»

Organizing is the process of identifying and grouping of the work to be performed , Defining and Delegating Responsibility and Authority and Establishing Relationships for the purpose of evaluating people to work more effectively together in accomplishing their objectives . 

Thus we can say that “Organization is a group of people , who are co-operating under the direction of leadership for the accomplishment of common end” . 

32.

………. deals with the financial assets and securities whose maturity period does not exceed one year. (a) Money market (b) Capital market (c) Stock exchange (d) Government bonds

Answer»

(a) Money market

33.

Debt Instruments are issued by Corporate Houses are raising short-term financial resources from the money market are called ……………… (a) Treasury Bills (b) Commercial Paper (c) Certificate of Deposit (d) Government Securities

Answer»

(b) Commercial Paper

34.

Explain the Concept of Taylor’s Differential Piece Rate System .

Answer»

Differential Piece Rate System is an incentive bonus plan suggested by Taylor . Under this plan , the piece wage rate paid to efficient workers is higher than the normal piece wage rate . 

Purpose : According to Taylor, the wages of efficient and inefficient workers should be distinguished on the basis of level of output. This approach helps to stimulate less efficient workers to improve their performance and provide them higher job satisfaction . Thus the efficient workers get motivated as they are paid at a higher rate than those who perform below standard .

35.

Write TWO differences between Advertising and Personal Selling

Answer»
S. NOBasisAdvertising Personal Selling
1.MeaningAdvertising is considered to be an impersonal form of communication . Personal Selling is considered to be a personal form of communication .
2.FormIt allows only one way communication from seller to the prospective customers .It allows two way communication between the seller and the prospective customers .

36.

Explain TWO Rights given to Consumers under the Consumer Protection Act, 1986 .

Answer»

The Consumer Protection Act , 1986 confers six rights to the consumers . The Consumer Protection Councils have been setup under the Act as to promote and protect these consumer rights . 

Following TWO Rights discussed here are : 

(i) Right to Safety 

(ii) Right to Information 

(iii) Right to Choose 

(iv) Right to be Heard 

(v) Right to Seek Redressal 

(vi) Right to Consumer Education 

37.

Give TWO Differences between Capital Market and Money Market.

Answer»
S.NOBasisCapital MarketMoney Market 
1.MeaningThe term Capital Market refers to facilities and institutional arrangements through which long term funds , both debt and equity are raised and invested , The Money Market constitutes the market for short term funds which deals in monetary assets , whose period of maturity is up to one year 
2.Participants The main participants in capital market are Banks , Financial Institutions , Corporate Bodies , Foreign Investors and Retail Investors .The main participants in money market are Institutional Investors like RBI , Financial Institutions , Banks and Finance Companies . Although the individual investors are allowed trade in secondary money market , However they do not generally do so . 

38.

Explain the advantages and limitations of advertising?

Answer»

Advertising is the most commonly used tool of promotion. It is an impersonal from of communication, which is paid for by sponsors to promote some goods or service. 

A. Merits of Advertising: 

1. Mass Reach: Advertising is a medium through which a large number of people can be reached over vast geographical area. 

2. Enhancing customer satisfaction and confidence: Advertising creates confidence amongst prospective buyers as they feel more comfortable and assured about the product quality and hence feel more satisfied. 

3. Expressiveness: with the help of computer designs, graphics, etc advertising has developed into one of the most forceful medium of communication. With the special effects created, even simple product and messages look very attractive. 

4. Economy: Advertising is a very economical mode of communication. A large number of people can be reached at a time. Because of its wide reach, the overall cost of advertising gets spread over numerous communication links established. As a result the per unit cost of reach comes low. 

B. Limitations of advertising: 

1. Less Forceful: Advertising is an impersonal form of communication. It is less forceful than personal selling as there is no compulsion on the prospects to pay attention to the message. 

2. Lack of feedback: The evaluation of the effectiveness of the advertising message is very difficult as there is no immediate feedback mechanism of the message that is delivered. 

3. Inflexibility: Advertising is less flexible as the message is standardized and cannot be altered according to the requirements of the different customer groups. 

4. Low Effectiveness: As the volume of advertising is getting more and more expanded, it is becoming difficult to make advertising messages heard by the target customers. This affects the effectives of advertising. 

C. Objections to Advertising: 

1. Adds to cost: Advertising unnecessarily adds to the cost of product, which is ultimately passed on to the buyers in the form of high prices. The money spent on advertising adds to the cost, which is an important factor in the fixation of the price of a product. But, advertisement also helps to increase the demand for the product as large number of potential buyer are persuaded to buy more product. Increased demand leads to higher production, which brings in the economies of scale. As a result, the per unit cost of production comes down. This reduces the burden of consumers. 

2. Undermines social values: People argue that advertising undermines social values and promotes materialism. It encourages dissatisfaction among people as they come to known about new products and feel dissatisfied with their present state of affairs. But, advertisement in fact, helps buyers by informing them about the new products, which may be improvement over the existing products. If the buyers are not informed about these products, they may be using inefficient products. 

3. Confuses the buyers: So many advertisements create confusion among the buyers. All advertisements make similar claims that the buyer gets confused as to which one is true and which product should be purchased. But, the supporters of advertisement argue that buyers can clear their confusion by analyzing the information provided on the advertisements and other sources before taking a decision to purchase a product. 

4. Encourages sale of inferior product: Advertising does not distinguish between superior and inferior products. Hence, it persuades people to buy even inferior products. But, superiority and inferiority depends on the quality, which is a relative concept. The desired level of quality also depends on the economic status and preferences of the target customers. Hence, advertisements are not solely responsible for the sale of inferior products. 

5. Some advertisements are in bad taste: Another Criticism against advertising is that some advertisements are in bad taste. These show something which is not approved generally by people some advertisement also distort the human relationships. There can be some chances of misuse of adverting as a tool, which can be properly safeguarded by the low or by developing a code of conduct by the advertisers, for their self regulation. 

Conclusion: Most of the Criticism against advertising are not entirely true. In the changed are economic environment of globalization, advertising is considered as an important tool of marketing. It helps a firm in effectively communicating with its target market, increasing the sale and there by reducing the per-unit cost of production. 

It is not a social waste it adds value to the social cause by increasing production and generating more employment opportunities. Hence, advertising is a use and not a waste.

39.

what does neruda mean by 'an exotic moment without rush' in his poem 'keeping quiet'

Answer»

Pablo Neruda wishes for that exotic moment when mankind will be free from greed, cruelty and harmful actions. Unnecessary rush and noise have caused unpleasantness and troubles. The poet wishes the noise of engines and machines should cease and peace and tranquility should prevail.

40.

Briefly explain any four differences between Capital Market and Money Market.

Answer»
Money MarketCapital Market
It is a market where short-term funds are borrowed and lent.It is a market where long-term funds are borrowed and lent.
The participants in the capital market are financial institutions, banks, corporate entities, and foreign investors.The participants in the money market are RBI, banks, financial institutions, and finance companies.
Individuals can take part in the trading of capital marketIndividuals cannot directly trade in the money market.
The instruments involved for transaction are treasury bills, calls money, certificate of deposit, commercial papers, commercial bills, etc.The major players are companies, Individual investors, foreign investors, banks and financial institutions.

41.

Explain any four factors that affect the fixation of price of a product.

Answer»

1. Cost of the product: Cost of the product includes the cost of producing, distributing and selling the product. The cost sets the floor price at which the product may be sold. The firm aims at earning a margin of profit over and above the costs. Total costs are the sum total of the fixed, variable and semi-variable costs for the specific level of activity.

2. The Utility and Demand: While the product costs set the lower limits of the price, the utility provided by the product and the intensity of demand of the buyer sets the upper limit of the price, which a buyer would be prepared to pay. According to the law of demand, consumers usually purchase more units at a low price than at high price. The price of a product is also affected by the elasticity of demand of the product. If the demand of a product, is inelastic, the firm can fix higher prices and vice versa.

3. Extent of competition in the market: Price is affected by the nature and the degree of competition. If less competition is there in the market, prices can reach the upper limit. Thus, competitors prices and their anticipated reactions must be considered before fixing the price of a product.

4. Government and legal regulations: In order to protect the interest of public against unfair practices in the field of price fixing, Government can intervene and regulate the price of commodities. Government can also declare a product as essential product and regulate its price.

42.

Discuss the following techniques of Scientific Work Study:(a) Time Study(b) Motion Study(c) Fatigue Study(d) Method Study(e) Simplification and standardisation of work.

Answer»

(a) Time Study– In this technique Taylor emphasised on setting a standard time limit for completing any particular job. With the help of time measuring tools, considerable readings were taken for the time taken to complete a task. On the basis of this a standard time limit is set for each task. This helped in deciding the number of workers to be employed for the task, determining their wages, etc. For example, if, on the basis of observations it is determined that one person can finish making 1 shirt in two hours then, in a working day of 8 hours, each worker should make 4 shirts.

(b) Motion Study– As the name suggests, motion study refers to the study of motion (movements) involved while undertaking a task. This technique aims at removing the unwanted actions/motions so that the work can be completed in a lesser time. Taylor along with his associate Frank Gailberth observed the motions of a worker and categorised them as productive, incidental and unproductive. They demonstrated that by eliminating the unproductive movements productivity can be increased. For example, in brick layering they demonstrated that productivity increased by nearly 4 times by reducing the motions from 18 to 5.

(c) Fatigue Study– This technique is regarding requirement of rest or break during the work. If a worker works continuously physical and mental fatigue sets. This reduces his/her efficiency. Thus, the worker requires rest or break. Fatigue study identifies the intervals required while completing a task. It suggests that standard break timings should be decided for improving the working performance of workers.

(d) Method Study– This study aims at finding out the best method of completing any work. It takes into account each and every activity involved in the task. It helps in reducing the costs and maximising the satisfaction of the customers. Assembly line production, used by Ford Motors is a popular example of method study.

(e) Simplification and Standardization of Work– Taylor holds up standardization as the very basis of techniques of scientific management. Standardization as the word suggests implies setting of milestones or benchmarks for any work or activity. Various other techniques by Taylor, such as method study, fatigue study and time study are also based on the concept of standardization.

Simplification on the other hand means eliminating any unnecessary diversifications in the product. It aims at fuller utilisation of the resources, reducing inventories and increasing the turnover. It helps in reducing the costs of labour and machines. This technique helps in optimum utilisation of resources and removes the unnecessary costs related to work.

43.

Explain the following principles of management given by Fayol.1. Unity of command2. Order

Answer»

1. Unity of command
. There should be one and only one boss for every individual employee.
. If an employee gets order from two superior at the same time, the principle is violated.
. Consequences of violation: authority is undermined, discipline is in jeopardy, order is disturbed, and stability is threatened.
. Order
. People and material must be in suitable places at appropriate time for maximum efficiency.
. It means ‘a place for everything (everyone) and everything (everyone) in its (his/her) place’ i.e. orderliness.
. Benefits of the principle: no hindrance in the activities of business, increased productivity and efficiency.

44.

A netlike membranous complex of superposed flat saccules with vesicles detaching from the extremities seen in electronic microscopy. What is the observed structure? What is its biological function?

Answer»

What is being observed is the Golgi complex, or Golgi apparatus. This a cytoplasmic organelle is associated with chemical processing and modification of proteins made by the cell and with storage and branding of these proteins for posterior use or secretion. Vesicles seen under the electronic microscope contain material already processed, ready to be exported (secreted) by the cell. The vesicles detach from the Golgi apparatus, travel across the cytoplasm and fuse with the plasma membrane then secreting their substances to the exterior.

45.

On which organelle of the cell structure does in tracellular digestion depend? What is the chemical content of those organelles?

Answer»

Intracellular digestion occurs by the action of lysosomes. Lysosomes have digestive enzymes (hydrolases) that are made in the rough endoplasmic reticulum and stored in the Golgi apparatus. Lysosomes are hydrolase containing vesicles that detach from the Golgi apparatus.

46.

State True or False. 1. Turtles and tortoises are the same. 2. The Leatherback is the largest sea turtle.3. Jackals, dogs and pigs will not eat the eggs of Olive Ridley. 4. Crabs and birds will eat the tiny hatchlings. 5. Human activities have put the turtles in grave danger. 

Answer»

1. False

2. True.

3. False

4. True

5. True

47.

Climatologist warn of a tipping point when global temperature trigger catastrophic events and rise levels rise more than 50 feets. What would cause the sea level rise so greatly and how much warmer does the world need to get for this tripping point to happen 1. 1°C 2. 3°C 3. Melting of Greenland ice sheet 4. thermal expansion of oceans Which of the above is/are correct? (a) 1 and 3 (b) 1 and 3 (c) 2 and 3 (d) 2 and 4

Answer»

(c) Greenland ice sheet melt water, which moves to the sea under the ice in contact with the land surface, may transport solids or dissolved material such as iron to the ocean. Measurements of the amount of available iron in melt water from the Greenland ice sheet shows that extensive melting of the ice sheet might add an amount of iron to the Atlantic Ocean equivalent to that added by airborne dust. This would increase biological activity in the Atlantic.

48.

What are hazardous wastes what are its different characteristics 

Answer»

According to the EPA, “Simply defined, a hazardous waste is a waste with properties that make it dangerous or capable of having a harmful effect on human health or the environment.” Hazardous waste also includes different physical forms, including: solids, liquids, and gases. 

The EPA breaks down hazardous wastes into four characteristics:

  • Ignitability – something flammable
  • Corrosivity – something that can rust or decompose
  • Reactivity – something explosive
  • Toxicity – something poisonous

Ignitability

  • Liquids with a flash point–the lowest temperature at which fumes above waste ignite–of 60 degrees Celsius or 140 degrees Fahrenheit.
  • Solids that spontaneously combust.
  • Oxidizers and compressed gasses.
49.

Due to improper/ indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? 1. Beryllium 2. Cadmium 3. Chromium 4. Heptachlor 5. Mercury 6. Lead 7. Plutonium Select the correct answer using the codes given below. (a) 1, 3, 4, 6 and 7 only (b) 1, 2, 3, 5 and 6 only (c) 2, 4, 5 and 7 only (d) 1, 2, 3, 4, 5, 6 and 7

Answer»

(b) Electronic waste or E-waste has ferrous and nonferrous metals both. Non-ferrous metals like copper, aluminium, silver, gold, platinum, palladium etc. The presence of elements like lead, mercury arsenic, cadmium, selenium and hexavalent chromium are classified as hazardous waste.

50.

Concerned with the expensive disposal their hazardous wastes, a company learns that it can purchase another chemical that will neutralize the company’s hazardous wastes into a nontoxic form. The strategy used by this company is most consistent with which of the following hazardous-waste disposal system methods ?(a) secure landfill(b) deep-well injection(c) on-site surface impoundment(d) best-demonstrated available technology

Answer»

(d) best-demonstrated available technology