RRB NTPC CBT 1 Question Paper (Held On: 28 Dec 2020 Shift 2) - RRB NTPC/ASM/CA/TA MCQ

The correct answer is 1921-1922.

• The Moplah Rebellion took place between the years 1921-1922.

Key Points

• Moplah:
  • The uprising took inspiration from the Non-Cooperation Movement launched by Congress in 1920 along with the Khilafat Movement.
  • The Moplahs are the Muslim Mapillahs of the south Malabar region of Kerala.
  • It took under the leadership of Sayyad Ali and Saiyed Fazl.
  • It took place between the years 1921-1922.
  • The reasons for the revolt were:
    • New tenancy laws
    • Anti-British sentiments
    • The communal angle was due to the Namboodiri Brahmins who were the landlords.

Additional Information

Agitations contemporary to the Non-cooperation movement

By using the symbols in the table given below, we can draw the following family tree:

i) I, J, K, L, M and N are playing hockey.

(ii) I and M are sisters and N is the brother of M.

(iii) K is the only son of I’s paternal uncle.

(iv) J and L are the sons of a brother of K’s father.

Clearly, K is the cousin of M.

Hence, ‘Cousin’ is the correct answer.

Calculation:

Let the denominator of the required fraction = a

So, the numerator will be = a - 2

According to the question:

(a - 2) × 2/a × 3 = 2/9

⇒ (a - 2)/a = 1/3

⇒ 3a - 6 = a

⇒ 2a = 6

⇒ a (denominator) = 3

⇒ Numerator = 3 - 2 = 1

∴ The required fraction is 1/3.

The correct answer is NNP = GNP - Depreciation.

• Net National Product (NNP) is NNP = GNP - Depreciation.

Key Points

• Net National Product (NNP):
  • NNP is obtained by subtracting depreciation value (i.e. capital stock consumption) from GNP.

Additional Information

• Gross Domestic Product (GDP):
  • It is the total money value of all final goods and services produced within the geographical boundaries of the country during a given period of time.
  • GDP = C + G + I
    • C = Consumption expenditure
    • G = Government expenditure
    • I = Investment expenditure
• Gross National Product (GNP):
  • It refers to the money value of the total output of production of final goods and services produced by the nationals of a country during a given period of time, generally a year.
• National Income (NI):
  • When NNP is calculated at factor cost (FC) it is called National Income.
  • The measure is calculated by deducting indirect taxes and adding subsidies in NNP at Market Price (MP).
  • In India, the Wholesale Price Index (WPI) is the weighted average price of 676 items with the base year 2017-18.

The correct answer is PROM.

• PROM is not a part of auxiliary memories in a Computer system.

Key Points

• Secondary Memory/ Auxiliary memory:
  • An Auxiliary memory is the lowest-cost, highest-capacity and slowest-access storage in a computer system.
  • It is permanent in nature, so it is also called non-volatile.
  • In these memories, programs and data are kept for long-term storage or when not in immediate use.
  • Examples of auxiliary memories are magnetic tapes, Floppy, CD-ROM and magnetic disks.
  • The PROM (Programmable Read-Only Memory) has the option of being programmed.
  • It is not a part of auxiliary memory.

Additional Information

• Primary Memory:
  • It is often referred to as the working memory of the main memory of a computer system.
  • It is temporary in nature, so it is also called volatile memory.
  • Its example is RAM.

Given:

√2 + √x = √3

Formula used:

(a - b)2 = a2 + b2 - 2ab

Calculation:

√2 + √x = √3

⇒ √x = √3 - √2

By squaring both sides:

⇒ x = (√3)² + (√2)² - 2 ×√3 × √2

⇒ x = 3 + 2 - 2√ 6

∴ x = 5 - 2√ 6

The correct answer is Grammy.

• Grammy Awards is associated with only Music.

Key Points

• Grammy Awards:
  • The award is presented annually in the United States by the National Academy of Recording Arts & Sciences (NARAS).
  • NARAS is also called the Recording Academy.
  • It is given to recognize achievement in the music industry.
  • The trophy represents a gilded gramophone.
• 2021 Grammy Award Winners:
  • ​Record of the Year: "Everything I Wanted"- Billie Eilish.
  • Album of the Year: Folklore- Taylor Swift.
  • Song of the Year: "I Can't Breathe"- Dernst Emile

Additional Information

• Oscar Award:
  • It was instituted in 1929 and is conferred annually by the Academy of Motion Pictures in the United States.
  • Mahboob Khan’s Mother India was the first Indian film to be nominated in the best foreign film category in 1958.
  • The first Indian to share the Oscar was Bhanu Athaiya for the film ‘Gandhi’.
  • Satyajeet Ray was the first Indian who was awarded Oscar for lifetime achievement in cinema in 1992.
• Cannes:
  • It is an international film festival.
  • It is named after a resort town on the French Riviera.

The correct answer is the photosphere.

• The glowing surface of the sun is known as the photosphere.

Key Points

• Sun:
  • Its diameter is 14 lakh km.
  • It is composed of 71% Hydrogen, 26.5% helium and 2.5% other elements.
  • Within the sun, hydrogen is converted to helium due to nuclear fusion releasing a tremendous amount of heat and light.
  • The shining surface of the sun is called Photosphere.
  • The outer layer of the sun’s atmosphere made up of thin hot gases is called Corona.
  • The middle surface is the chromosphere.
  • The temperature of the Photosphere is 6000°C, that of the chromosphere is about 32400°C and that of Corona is about 2700000°C.
  • Light takes about 8 minutes 20 seconds to reach the earth from the sun.​

Additional Information

• The lithosphere is the uppermost layer of the earth’s crust which is capable of supporting life.
• ​​Andromeda is the nearest galaxy to Milky Way.
• The nearest star to our solar system is Proxima Centauri.

The correct answer is Lord Chelmsford.

• Jallianwala Bagh massacre took place during the term of Viceroy Lord Chelmsford.

Key Points

• Jallianwala Bagh Massacre (13th April 1919 AD)
  • The arrest of Dr. Saifuddin Kitchlu and Dr. Satyapal on 10th April 1919 AD, under the Rowlatt Act in connection with Satyagraha caused serious unrest in Punjab.
  • A public meeting was held on 13th April 1919 AD in Jallianwala Bagh in Amritsar.
  • It took place during the term of Viceroy Lord Chelmsford
  • As soon as the meeting started, General Reginald Dyer ordered the indiscriminate heavy firing.
  • As a result, hundreds of men, women, and children were killed and more than 1,200 people wounded.
  • Due to this massacre, R.N. Tagore returned ‘Knighthood’ and Shankaran Nair resigned from the Executive Council of Viceroy.
  • Mahatma Gandhi returned the Kaisar-i-Hind title as a protest against the Jallianwala Bagh massacre.

​ Additional Information

• Lord Irwin was viceroy from 1926 AD-1931 AD.
• Lord Dalhousie served as the Governor-general of India from the year 1848-1856.
• Lord Ripon was viceroy from 1880-84.
• Rowlatt Act (1919)
  • In 1919 a Sedition Committee headed by justice Rowlatt led to the Rowlatt Act.
  • This act authorized the government to imprison any person without trial and conviction by the Court of Law for 2 years.
  • The law also enabled the government to suspend the right of Habeas Corpus which had been the foundation of civil liberties in Britain.

Given:

cos 2θ = sin θ

Identity used:

Sin (90° - θ) = cos θ

Calculation:

Cos 2θ = sin θ

⇒ Sin (90° - 2θ) = sin θ

⇒ 90° - 2θ = θ

⇒ 3θ = 90°

⇒ θ = 30°

Concept:

HCF : The sum of any two numbers is divisible by their HCF.

Product of two numbers = HCF × LCM

Given:

Sum of two numbers = 1500

LCM = 16379

Calculation:

Let the two numbers be = a & b

⇒ a + b = 1500

⇒ b = 1500 - a

Let by dividing 1500 by the HCF say h, we get any number, say p.

⇒ 1500 ÷ HCF = p

Let by dividing 16379 by HCF say h, we get any number, say q

⇒ 16379 ÷ HCF = q [ p & q are integers]

⇒ h is the HCF of 1500 and 16379

Now, 16379 ÷ 1500 × p = q

1500 = 2² × 3 × 5³

16379 = 11 × 1489

Clearly, The HCF (h) of 1500 and 16379 is 1.

As we know, a × (1500 - a) = HCF × LCM = 1 × 16379

⇒ 1500a - a² = 16379

⇒ a² - 1500a - 16379 = 0

⇒ a² - 1489a - 11a - 16379 = 0

⇒ a (a - 1489) - 11(a - 1489) = 0

⇒ (a - 11) ( a - 1489) = 0

⇒ a = 11, 1489

For a = 11, b = 1500 - 11 = 1489

For a = 1489, b = 1500 - 1489 = 11

∴ In both the cases, two numbers are 11 and 1489.

The correct answer is Grey.

• Grey colour is associated with the revolution in fertilisers.

Key Points

Agriculture Revolutions in India and their respective Colours:

The pattern followed here is:

According to the alphabetical positions of the letters,

Similarly,

Hence, ‘ENVAQEBC’ is the correct answer.

Follow BODMAS rule to solve this question, as per the order given below,

Calculation:

⇒ (1/2) × (2/3) - 3/4( 1/6 + 5/6) × 4/21 = ?

⇒ 1/3 - 3/4 × (4/21) = ?

⇒ 1/3 - 1/7 = ?

⇒ (7 - 3)/21 = ?

∴ 4/21 = ?

Given:

Percentage of total votes that the winning candidate got = 48%

No of votes which the losing candidates got that is 34% of the total votes = 6800

Calculation:

No of votes gained by losing candidate = 6800

⇒ 34% = 6800

⇒ 100% (Total votes) = 20000

No of votes got by the winning candidate = 20000 × 48/100 = 9600

∴ The winning margin of the winning candidate = 9600 - 6800 = 2800

∴ Number of invalid votes = Total votes - votes given to winning and losing candidates

⇒ 20000 - (9600 + 6800) = 3600

Given:

The ratio of money invested by 3 persons =

Profit of the year = Rs.15600

Formula used:

The profit is divided according to the ratio of capital invested.

⇒ Profit = Investment × Time

Calculation:

By taking the LCM of 1/2, 1/3, 1/4, the ratio becomes = 6: 4 : 3

So, let the shares of 3 persons be = 6a , 4a, 3a

Evidently, 6a being the largest part.

∵ 6a + 4a + 3a = 15600

⇒ 13a = 15600

∴ The largest share is received by the first person:-

⇒ 6a = (15600 ÷ 13a) × 6a = Rs.7200

Formula used:

Average = Sum of all observations ÷ Total no of observations

Calculation:

Average of AQI in Kolkata = (306 + 288 + 274 + 172) ÷ 4 = 1040 ÷ 4 = 260

Average of AQI in Delhi = (248 + 246 + 246 + 236) ÷ 4 = 976 ÷ 4 = 244

∴ The required difference in averages = 260 - 244 = 16

The correct answer is New York.

• The headquarters of the United Nations Security Council is located in New York.

Key Points

• United Nations Security Council:
  • The main aim of the Security Council is the maintenance of international peace and security.
  • Security Council comprises five permanent members, namely China, UK, Russia, France, and USA, and 10 non-permanent members, elected for a term of 2 years by a two-thirds majority of the General Assembly, five non-permanent members retire every year.
  • The headquarter of the Security Council is in New York (US).

Additional Information

• United Nations:
  • The UNO was formed on 24 October 1945.
  • At present, 193 countries are members of the UN.
  • South Sudan is the latest and the 193rd member to join the UN in 2011.
  • The UN Charter came into force on October 24, 1945, when the Governments of China, France, the UK, the Soviet Union, and the USA and a majority of other counties had ratified it.
  • The headquarters of the UN is situated in New York (USA).

Concept:

For finding out the smallest square number that is divisible by 12, 15, and 18, we need to calculate the LCM of these numbers.

Calculation:

LCM (12, 15, 18) = 180

⇒ 180 = 2 × 2 × 3 × 3 × 5

So, in order to make any perfect square no divisible by 180, we need to multiply it by 5.

⇒ 180 × 5 = 900

∴ The smallest perfect square number that is divisible by 12, 15, and 18 is 900.

Given expression: B700A110S90FDB9M10S10F

After replacing the letters by their meaning, we get:

(700 + 110 – 90) ÷ (9 × 10 – 10)

= (810 – 90) ÷ (90 – 10)

= 720 ÷ 80

= 9

Hence, ‘9’ is the correct answer.

The correct answer is M N Roy.

• The idea of a constituent assembly of India for the first time was given by M N Roy.

Key Points

• The idea for a Constituent Assembly was proposed in 1934 by M.N.Roy.
  • The Cabinet Mission, 1946 envisaged the establishment of a Constituent Assembly to frame the constitution as well as an interim government.
  • It took two years, eleven months, and eighteen days for the Constituent Assembly to finalize the Constitution.
  • The Assembly appointed the Drafting Committee with Dr. B.R. Ambedkar as the Chairman on August 29, 1947.

Additional Information

• Dr Sachidanand Sinha was the first President of the Constituent Assembly.
• Dr Rajendra Prasad was elected the President of the Assembly.
• B.N. Rau was appointed as the Constitutional Advisor of the Assembly.

The correct answer is fire blight.

• The disease related to apples is known as fire blight.

Key Points

• Fire blight disease:
  • It is a common and very destructive bacterial disease that appears in apples and pears.
  • It is caused by the bacterium Erwinia amylovora.
  • The disease kills blossoms, fruit, shoots, twigs, branches, and entire apple trees.
  • The disease appears in the spring when temperatures get above 19⁰ C.
  • Climatic conditions like rain, heavy dew and high humidity favour the infection.

Additional Information

• The red rust disease is a disease of the tea plant in which orange-brown, velvety spots develop on the leaves of infected plants.
• The tikka disease is a disease of the groundnut plant.
• The green ear disease is a disease of the pearl millet.

Given:

Revenue earned by Company A in 2001 = Rs.6300 crore

Revenue earned by Company A in 2010 = Rs.8100 crore

Revenue earned by Company A in 2015 = Rs.10800 crore

Calculation:

Increase in the revenue from 2001 to 2010 = 8100 - 6300 = 1800 crore

Increase in the revenue from 2010 to 2015 = 10800 - 8100 = 2700 crore

∴ The required ratio = 1800 : 2700 = 2 : 3

The correct answer is 1969.

• India's first nuclear power station was commissioned in 1969.

Key Points

• India's first nuclear power station was Tarapur Atomic Power Station.
  • It was commissioned in the year 1969.
  • It is located in the Thane District of Maharashtra.
  • It was built with the help of the United States, and the International Atomic Energy Agency (IAEA).
  • The Atomic Power Station is operated by the Nuclear Power Corporation of India (NPCIL).

Additional Information

• Other atomic power plants in India:
  • Rajasthan Atomic Power Station, Rawatbhata, Rajasthan.
  • Narora Atomic Power Plant, Uttar Pradesh.

The correct answer is revamping of Public Sector Banks.

• The "Indradhanush” framework, an Indian government initiative is for the revamping of Public Sector Banks.

Key Points

• Mission Indradhanush for PSBs:
  • It was launched in the year 2015.
  • It is a 7 components plan due to which is called Mission Indradhanush.
  • The main aim of this mission is at revamping the functioning of the Public Sector Banks and to enable them to compete with the Private Sector Banks.
  • The 7 components are appointments, Banks board bureau(BBB), capitalization, de-stressing, empowerment, a framework of accountability, and governance reforms (ABCDEFG).
• The public sector banks account for more than 92% of the entire banking business in India occupying a dominant position in commercial banking.
• The State Bank of India and 12 banks are the public sector banks.

Additional Information

• Mission Indhradhanush:
  • It ​was launched by the Ministry of Health and Family Welfare in December 2014.
  • The aim of the scheme is to expand immunization coverage to all children across India.
    • Children across socio-economic, cultural and geographical backgrounds in India, are being immunized under this program.

The logic is:

Grasshopper : Insect → Grasshopper is an Insect.

Similarly,

Hyena : ? → Hyena is a mammal.

Hence, 'Mammal' is the correct answer.

The description is as follows:

Hence, ‘Golf’ is the odd one out.

The logic is as follows:

Hence, ‘72’ is the correct answer.

1. NET gives one an advantage in teaching

The conclusion cannot be be derived from the given statement as there is no mention about any advantage if one qualifies NET.

2. NET helps to make people better teachers

The conclusion cannot be be derived from the given statement as the statement does not mentions qualifying NET will help people make better teachers or not.

3. NET is a desirable qualification for college teaching

The conclusion cannot be be derived from the given statement as NET is not a desirable qualification, NET is mandatory to qualify for College Teaching.

4. Only those who pass NET qualify for college teaching

The conclusion can be derived from the given statement 'For applying for the post of lecturer, passing NET is mandatory'. The statement means one must qualify NET to become a Lecturer in College.

Hence, 'Only those who pass NET qualify for college teaching' is the correct answer.

1. Many students do not pay exam fee in time.

The statement does not tells if many students or less students do not pay exam fee in time. So, the conclusion cannot be derived from the given statement.

2. Students follow deadline only if penalised.

The given statement does not mentions any such thing that a student follows deadline only if penalised. Therefore, the conclusion cannot be derived from the given statement.

3. Fines for late payment of exam fees is a large source of revenue.

The given statement does not mentions any data about the source of revenue. Therefore, conclusion cannot be derived from the given statement.

4.All fees are to be paid timely, else they must pay penalty.

All fees are to be paid timely, else they must pay penalty clearly means students have to pay fine for late payment of exam fees.

Hence, 'All fees are to be paid timely, else they must pay penalty' is the correct answer.