RRB NTPC CBT 1 Question Paper (Held On: 5 Jan 2021 Shift 1) - RRB NTPC/ASM/CA/TA MCQ

The correct answer is Ban Ki-Moon.

Key Points

• Ban Ki-moon was the United Nations eighth Secretary-General.
• His first priority has been to rally world leaders behind a series of emerging global concerns, ranging from climate change and economic turmoil to pandemics and rising food, energy, and water pressures.
• He has worked to develop bridges and strengthen the Organization by giving voice to the world's poorest and most vulnerable people.
• Mr. Ban was in office from January 1, 2007, to December 31, 2016.
• The General Assembly unanimously re-elected him for a second term on June 21, 2011.

Important Points

• António Manuel de Oliveira Guterres is a Portuguese politician who has served as the United Nations' ninth Secretary-General since 2017.
• From January 1997 to December 2006, Kofi Atta Annan, a Ghanaian diplomat, served as the United Nations' seventh Secretary-General.
• Maha Thray Sithu U Thant, sometimes known as U Thant, was a Burmese diplomat who served as the UN's third Secretary-General from 1961 to 1971, making him the first non-Scandinavian to hold the position.

The correct answer is Tummalapalle mine.

Key Points

• The Tummalapalle Mine is a uranium mine found in Tumalapalli hamlet in Kadapa, Andhra Pradesh, India.
• The results of studies undertaken by India's Atomic Energy Commission in 2011 led analysts to believe that this mine may hold one of the world's greatest uranium reserves.
• On July 19, 2011, Dr. S. Banerjee, Secretary of the Department of Atomic Energy and Chairman of the Atomic Energy Commission of India, confirmed 49,000 tonnes of uranium reserves and speculated that there could be three times that amount, making Tummalapalle the world's largest uranium mine.

Important Points

• The Jaduguda Mine is a uranium mine located in Jaduguda village, Purbi Singhbhum district, Jharkhand, India.
• Since April 1995, the Narwapahar Mine has been the first completely mechanized mine in operation.
• The Bhatin Mine is a tiny underground mine 3 kilometers from Jaduguda. It uses Jaduguda Mine's infrastructure for the most part.

The correct answer is Coimbatore.

Key Points

• The state of Tamil Nadu has the most mills, with the majority of them producing yarn rather than cloth.
• With over half of the mills located there, Coimbatore has emerged as the most important center.
• Other prominent cities include Chennai, Madurai, Tirunelveli, Tuticorin, Thanjavur, Ramanathapuram, and Salem.
• Cotton textiles have grown in Karnataka's cotton-producing industry.
• The cotton textile sector is based on the cotton-producing Telangana region, with the majority of mills spinning yarn.
• Telangana's Hyderabad, Secunderabad, and Warangal, as well as Andhra Pradesh's Guntur, are key centers.

Given:

Speed of first person = 3 km/h

Speed of second person = 5 km/h

Bus passes the first person = 10 sec

Bus passes the second person = 11 sec

Formula used:

Speed = Distance/Time

Calculation:

Distance covered by the first person in 10 sec = [(3 × 5/18) × 10] m

⇒ 25/3 m

Distance covered by the second person in 11 sec = [(5 × 5/18) × 11] m

⇒ 275/18 m

Bus travels a distance = (275/18 – 25/3) m

⇒ 125/18 m

Speed of the Bus = (125/18 × 18/5) km/hr

⇒ 25 km/h

∴ The speed of the bus is 25 km/h

Alternate MethodLet the speed of bus = y km/hr

In both cases, the bus covered the same distance

Distance = speed × time

D1 = S1 × T1

D2 = S2 × T2

⇒ D1 = D2

⇒ (y - 3) × 10 = (y-5) × 11

⇒ 10y - 30 = 11y - 55

⇒ y = 25 km/hr

∴ The speed of the bus is 25 km/h

From option A - Every complex number is the combination of real and imaginary number. But in the option say every complex number can be expressed in the form of a real number which is wrong.

From option B - Every natural number is integer but every integer is not natural number. So from option 2 every integer is natural number is not correct.

From option C - Every complex number is the combination of real and imaginary number. So, every real number can be written in the complex form, which is correct.

From option D - Every integer is real number but every real number is not an integer. from this option every real number is an integer is not correct.

Hence, "option C" is the correct answer.

Additional InformationComplex numbers are numbers that consist of two parts — a real number and an imaginary number.

The standard format for complex numbers is a + bi, with the real number first and the imaginary number last. Because either part could be 0, technically any real number or imaginary number can be considered a complex number.

Natural numbers: The counting numbers {1, 2, 3, ...} are commonly called natural numbers; however, other definitions include 0, so that the non-negative integers {0, 1, 2, 3, ...} are also called natural numbers. Natural numbers including 0 are also called whole numbers.

Integers are the collection of whole numbers and negative numbers. Similar to whole numbers, integers also does not include the fractional part.

Thus, we can say, integers are numbers that can be positive, negative or zero, but cannot be a fraction.

The correct answer is current fallow.

Key Points​ Current fallow: This represents the cropped area that is kept fallow during the current year. If a seeding area is not cropped against the same year, it may be treated as current fallow.

Additional Information

• Culturable waste land Includes land available for cultivation, but not cultivated during the current year and the last five years or more in succession for one reason or other.
  • Such lands may be either fallow or covered with shrubs, which are not put to any use.
  • They may be assessed or unassessed and may lie in isolated blocks or within cultivated holdings.
  • Land once cultivated but not cultivated for five years in succession are also included in this category at the end of the five years.
• Net area sown: Represents the total area sown with crops and orchards. Area sown more than once in the same year is counted only once.

In this question arrow moves 90 degree clock wise direction get next arrow and so on.

The figure are given below -

Hence, "option C" is the correct answer.

The correct answer is Intelligence quotient.

Key Points

• A total score resulting from a set of standardized tests or subtests designed to estimate human intelligence is known as an intelligence quotient (IQ).
• The psychologist William Stern invented the abbreviation "IQ" for the German term Intelligenzquotient, which he used to describe a scoring procedure for intelligence tests at the University of Breslau that he promoted in a 1912 book.
• IQ was traditionally calculated by dividing a person's mental age, as determined by an intelligence test, by the person's chronological age, both given in years and months.
• Intelligence test results are assessments of intelligence.
• Computers' speed, precision, diligence, versatility, and storage capacity are features that have made them so powerful and generally useful.

Given:

Anil and Balbeer can finish a task = 3 days

They worked together = 2 days

Balbeer took more days to finish the task = 2

Calculation:

LCM of 2 and 3 is 6

Anil and Balbeer do work = 6/3

⇒ 2 units/day

Anil and Balbeer 2 days work = 2 × 2 = 4 units

Work left = 6 – 4 = 2 units

Remaining work is done by Anil in 2 days

Anil's per day work = 2/2 = 1 unit/day

Balbeer's per unit work = (Anil + Balbeer)'s work – Anil's work

⇒ 2 – 1 = 1 unit/day

Balbeer alone can finish the same task = 6/1

⇒ 6 days

∴ Balbeer alone can finish the same task is 6 days

Given:

Difference between CI and SI = Rs. 50

Rate = 10%

Time = 2 years

Formula used:

CI – SI = P × (R/100)² for 2 years

where, P = Principal

R = Rate

Calculation:

According to question

We know that,

CI – SI = P × (R/100)²

⇒ P × (10/100)² = Rs. 50

⇒ P × (1/10)² = Rs. 50

⇒ P × (1/100) = Rs. 50

⇒ P = Rs. 5000

∴ The sum of money is Rs. 5000

The correct answer is Tax.

Key Points

• Capital receipts are the cash received from the sale of fixed assets, cash received from the sale of company shares, and cash received through the issue of a debt instrument, such as loans and bonds.
• Capital receipts are government revenues that either (i) generate liabilities (e.g. borrowing) or (ii) reduce assets (e.g. disinvestment).
• A capital receipt occurs when the government raises funds by incurring liability or selling its assets.
• Revenue receipts are government receipts that do not (i) increase obligations or (ii) deplete assets.
• These are tax revenues, interest, and dividends on government investments, cess, and other government receipts for services given.

The correct answer is 1957.

Key Points

• Apsara, India's and Asia's first nuclear reactor, went into operation on August 4, 1956, at 3:45 p.m., and was inaugurated by Prime Minister Nehru on January 20, 1957.
• Homi Jehangir Bhabha founded the Atomic Energy Establishment Trombay (AEET) in January 1954.
• Dr. Homi Bhabha intended to develop atomic energy research in India. Engineers and scientists from throughout the country who were working on the design and development of nuclear reactors were summoned to this facility.
• On March 15, 1955, the decision was made to construct India's first nuclear research reactor.
• Dr. Homi Bhabha was in charge of the entire programme. This reactor was designed to look like a swimming pool and have a thermal capacity of 1 MW (MWt).
• The construction of the research reactor began on the grounds of the Bhabha Atomic Research Center (BARC).

Calculation:

⇒ 19/32

∴ Required value is 19/32

Concept Used:

To find the area of visible faces, we have to take the area of 2 sides

Area of rectangle = Length × Breadth

Calculation:

Area of ABJI = (15 × 7) cm²

⇒ 105 cm²

Area of IJGH = (7 × 5) cm²

⇒ 35 cm²

Area of BCLK = (13 × 8) cm²

⇒ 104 cm²

Area of KLEF = (13 × 5) cm²

⇒ 65 cm²

Area of KFGJ = (5 × 7) cm²

⇒ 35 cm²

Area of CDEL = (8 × 5) cm²

⇒ 40 cm²

Total area of visible faces = (105 + 35 + 104 + 65 + 35 + 40) cm²

⇒ 384 cm²

∴ Total area of visible faces is 384 cm²

The correct answer is Autotrophs.

Key Points

• Autotrophs
  • An autotroph or primary producer is an organism that produces complex organic compounds (such as carbohydrates, fats, and proteins) using carbon from simple substances such as carbon dioxide, generally using energy from light (photosynthesis) or inorganic chemical reactions (chemosynthesis).
  • They convert an abiotic source of energy (e.g. light) into energy stored in organic compounds, which can be used by other organisms (e.g. heterotrophs).
  • Autotrophs do not need a living source of carbon or energy and are the producers in a food chain, such as plants on land or algae in water (in contrast to heterotrophs as consumers of autotrophs or other heterotrophs).
  • Autotrophs can reduce carbon dioxide to make organic compounds for biosynthesis and as stored chemical fuel.
  • Most autotrophs use water as the reducing agent, but some can use other hydrogen compounds such as hydrogen sulfide.

Additional Information

• Heterotroph
  • ​A heterotroph is an organism that cannot produce its own food, instead of taking nutrition from other sources of organic carbon, mainly plant or animal matter.
  • In the food chain, heterotrophs are primary, secondary, and tertiary consumers, but not producers.
• Saprotrophic nutrition
  • Saprotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed (dead or waste) organic matter.
  • It occurs in saprotrophs and is most often associated with fungi (for example Mucor) and soil bacteria.
  • Saprotrophic microscopic fungi are sometimes called saprobes; saprotrophic plants or bacterial flora are called saprophytes (sapro- 'rotten material' + -phyte 'plant'), although it is now believed that all plants previously thought to be saprotrophic are in fact parasites of microscopic fungi or other plants.
• Holozoic nutrition
  • Holozoic nutrition is a type of heterotrophic nutrition that is characterized by the internalization and internal processing of liquids or solid food particles.

Concept Used:

Follow the BODMAS rule according to the table given below:

Calculation:

⇒ 1 ÷ {1/2 + 1/3 + 1/6 ÷ (9 – 4)/12}

⇒ 1 ÷ {1/2 + 1/3 + 1/6 ÷ 5/12}

⇒ 1 ÷ {1/2 + 1/3 + 1/6 × 12/5}

⇒ 1 ÷ {1/2 + 1/3 + 2/5}

⇒ 1 ÷ {(15 + 10 + 12)/30}

⇒ 1 ÷ {37/30}

⇒ 1 × 30/37

⇒ 30/37

∴ Required value of ? is 30/37

The correct answer is 1959.

Key Points

• Rourkela Steel Plant (RSP), in Rourkela, Odisha is the first integrated steel plant in the public sector in India.
  • It was set up with West Germany collaboration with an installed capacity of 1 million tonnes in the 1960s.
  • It is operated by the Steel Authority of India.
• German metallurgical firms Mannesmann, Krupp, Demag, Siemens, and Austrian company Voestalpine provided machinery and consultancy to the plant among others.
• Rourkela Steel Plant was the first steel plant in Asia to use the LD (Linz-Donawitz) process of steel-making.
• Rourkela Steel Plant has an associated fertilizer plant that produces nitrogenous fertilizers using ammonia feedstock (from its coke oven plant).
• On 3 February 1959, then president Rajendra Prasad inaugurated RSP's first blast furnace named 'Parvati' when the company was known as Hindustan Steel Limited (HSL).
  • Subsequently, the RSP became a unit of the (SAIL).​

Additional Information

• At the global level in 2018, the world crude steel production reached 1789 million tonnes and showed a growth of 4.94% over 2017.
• India is the largest producer of sponge iron in the world and the 3rd largest finished steel consumer in the world after China & the USA.
• The growth in the Indian steel sector has been driven by the domestic availability of raw materials such as iron ore and cost-effective labour.
• Consequently, the steel sector has been a major contributor to India’s manufacturing output.
• Price regulation of iron & steel was abolished on January 16, 1992.
• Since then steel prices are determined by the interplay of market forces.
• Domestic steel prices are influenced by trends in raw material prices, demand-supply, conditions in the market, and international price trends among others.
• A Steel Price Monitoring Committee has been constituted by the Government with the aim to monitor price rationalization, analyze price fluctuations and advise all concerned regarding any irrational price behaviour of steel commodity.

In this series first number is subtracted from second number we get 1, second number is subtracted from third number we get 3, third number is subtracted from fourth number we get 1 and fourth number is subtracted from fifth number we get 3 and so on -

Hence, "28" is the correct answer.

Given:

The mid value of a class = 12

Width = 6

Formula used:

Lower limit = Mid value – width/2

Calculation:

Lower limit = 12 – 6/2

⇒ 12 – 3

⇒ 9

∴ The lower limit of the class is 9

The correct answer is Fuse.

Key Points

• Fuse is based on the heating effect of electric current.
• The fuse breaks the circuit if a fault in an appliance causes too much current to flow.
• This protects the wiring and the appliance if something goes wrong.
• The fuse contains a piece of wire that melts easily.
• If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.
  

Additional Information

• Resistance is a measure of the opposition to current flow in an electrical circuit.
• Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).
• Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current, and resistance. 
  

The correct answer is Charkha.

Key Points

• Charkha was considered a symbol of human society that would not glorify machines and technology during the Indian National Movement.
• ​The Spinning Wheel or Charkha became not only a symbol of the revolution, but it now is a symbol synonymous with the power of self-reliance, perseverance, and determination.
  • From then to now the Charkha has initiated an upheaval and marked the path of progress for the Indian Spinning can Industry.
• Indian National Movement
  • Romesh Chunder Dutt, a retired ICS officer, published 'The Economic History of India' at the beginning of the 20th Century.
    • In this book, he examined in minute detail the entire economic record of colonial rule since 1757.
  • The focal point of the nationalist critique was the drain theory. ​

Additional Information

• On 8th August 1942, Mahatma Gandhi gave a clarion call to end British rule and launched the Quit India Movement at the session of the All-India Congress Committee in Mumbai.
• Gandhiji gave the call “Do or Die” in his speech delivered at the Gowalia Tank Maidan, now popularly known as August Kranti Maidan.
• Aruna Asaf Ali popularly known as the 'Grand Old Lady' of the Independence Movement is known for hoisting the Indian flag at the Gowalia Tank Maidan in Mumbai during the Quit India Movement.
• The slogan ‘Quit India’ was coined by Yusuf Meherally, a socialist and trade unionist who also served as Mayor of Mumbai.
• Meherally had also coined the slogan “Simon Go Back”.​

The correct answer is Jalsaghar.

Key Points

• Jalsaghar (aka "The Music Room") is a 1958 drama film directed by master Indian filmmaker Satyajit Ray.
• Based on a short story of the same name by Bangla writer Tarashankar Bandopadhyay, Jalsaghar presents the tale of the decline of a feudal lord in pre-independence India.
• Film series: The Apu Series
• Actor: Chhabi Biswas
• Story by: Tarasankar Bandyopadhyay

Additional Information

• Padmashri Award in the year 2020

Calculation:

Point R is at 1.2 on the number line

And 6/5 corresponds to 1.2

∴ The given number line represents 6/5 is R

Calculation:

Students admitted in the arts faculty = 1200

Total students admitted in the college = (300 + 1200 + 1000 + 650 + 450)

⇒ 3600

Total students admitted in the arts faculty = 1200/3600

⇒ 1/3

∴ Required part of the total students is admitted in the arts faculty is 1/3

Given:

∠ABD = 55° and ∠ACD = 30°

Calculation:

∠BAD = α and ∠CAD = β

So, ∠BAC = y = α + β

So Referring to the triangle ΔABD and ΔACD,

∠ADB = 180°- α - 55°

∠ADC = 180°- β - 30°

For point D,

∠ADB +∠ADC + x = 360°

⇒ 180°- α - 55° + 180°- β - 30° + x = 360°

⇒ 360 - α - β - 85° + x = 360

⇒ x - (α + β) - 85° = 0

⇒ x - y - 85° = 0

⇒ x -y = 85°

∴ The correct answer is option (A).

The venn diagram of Apple, Mango, Fruits are given below -

All apple and mango are fruits but no mango is an apple.

Hence, "option D" is the correct answer.

Calculation:

Total number of students = 72

1 out of 3 students = 1/3 = 33.33% (Approx)
We have to Calculate 1/3rd Part of 72 Students

Language which is spoken at least 1 out of 3 students = 72/3

⇒ 24

∴ Language is spoken by atleast 1 out of 3 students residing in the hostel is Hindi

The correct answer is Net investment = Gross investment - depreciation.

Key Points

• The addition to the capital stock in an economy is measured by net investment or new capital formation, which is expressed as Net investment = Gross investment - depreciation.
• Gross Investment is referred to as the total expenditure that is made for buying capital goods over a time period, without accounting for depreciation.
  • In other words, gross investment is the amount that a company has invested in particular assets or the business as a whole without considering depreciation for the same.
• Net Investment, on other hand, is the actual addition that is made to the capital stock in a given period.
  • Net Investment takes into account the depreciation and is calculated by subtracting the depreciation from the gross investment.

Additional Information

• Estimates of National Income for 2020-21
  • Real GDP:
    • Real GDP at Constant (2011-12) Prices in the year 2020-21 is now estimated to be at Rs. 135 lakh crores in comparison to Rs. 145 lakh crores in 2019-20.
    • The GDP growth rate is -7.3% in the year 2020-21 in comparison to the 4% growth rate registered in the year 2019-20.
  • Nominal GDP:
    • GDP at Current Prices in the year 2020-21 is now estimated to be at Rs. 197 lakh crores in comparison to Rs. 203 lakh crores in 2019-20.
    • The GDP growth rate is -3% in the year 2020-21 in comparison to the 7.8% growth rate registered in the year 2019-20.
• The Gross Domestic Product (GDP) refers to the market value of all final goods and services produced within an economy.
  • It can be calculated into two ways:
    • Nominal GDP:
      • It refers to the GDP at the current market prices i.e., the GDP is calculated as per the market prices for the year for which the GDP is calculated.
    • Real GDP:
      • It refers to the GDP at base year prices i.e., the GDP is calculated as per the market prices in the base year. Thus, the Real GDP negates the inflation in goods and services.
    • In case of a high rate of inflation, the nominal GDP would be higher than the real GDP.
    • However, in the case of deflation, the real GDP would be higher than the nominal GDP.

The correct answer is Mucus.

Key Points

• A layer of mucus along the inner walls of the stomach is vital to protect the cell linings of that organ from the highly acidic environment within it.
• Gastric mucus is a gel-mucous barrier secreted by epithelial cells and glandular cells in the stomach wall.
• It acts as part of a barrier that protects the stomach wall from the acid and digestive enzymes within the stomach lumen.

​

Additional Information

• Villi
  • ​Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption.
  • An increased absorptive area is useful because digested nutrients (including monosaccharides and amino acids) pass into the semipermeable villi through diffusion, which is effective only at short distances.
  • In other words, increased surface area (in contact with the fluid in the lumen) decreases the average distance traveled by nutrient molecules, so the effectiveness of diffusion increases.
  • The villi are connected to the blood vessels so the circulating blood then carries these nutrients away.
• Gastric glands
  • The gastric glands are located in different regions of the stomach.
  • These are the fundic glands, the cardiac glands, and the pyloric glands.
  • The glands and gastric pits are located in the stomach lining.
• Enzymes
  • Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies.
  • They build some substances and break others down. All living things have enzymes.
  • Our bodies naturally produce enzymes.
    • But enzymes are also in manufactured products and food.

Stable, Burrow, Nest, and Den are all types of shelters where animals live.

Stable is a shelter for horses and other livestock.

Burrow is an underground tunnel where animals like rabbits and foxes live.

Nest is a structure built by birds and other animals to lay their eggs and raise their young.

Den is a shelter or hiding place for wild animals, typically consisting of a hole in the ground or a hollow in a tree.

Therefore, Den is the most similar word to the given words in terms of its meaning and function.

Hence, "Den" is the correct answer.

Additional InformationSlim (thin in an attractive way), Herd (a large number of animals that live and feed together), City (a large and important town) which is not similar.