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

The correct answer is Bal Gangadhar Tilak.

Key Points

• Bal Gangadhar Tilak was an Indian independence activist.
• He is popularly called "Lokamanya".
• He is also called "The father of the Indian unrest.".
• He founded the Home Rule League.

Additional Information

• "Inqilab Zindabad" is the slogan first raised by Bhagat Singh.
• "Dushman ki goliyon ka hum samna karenge" is the slogan first raised by Chandra Sekhar Azad.
• "Dilli Chalo" is the slogan first raised by Subhash Chandra Bose
• "Do or die" is the slogan first raised by Mahatma Gandhi.
• "Jai jawan Jai Kisan" is the slogan first raised by Lal Bahadur Shastri.

Given:

Monthly Salary = Rs. 45000

Calculation:

Amount spent on education = Rs.45000 × 1/3 = Rs. 15000

Amouont spent on food and other necessities = Rs.45000 × 2/6 = Rs. 15000

Amount kept for savings = Rs. 45000 - Rs. 15000 - Rs.15000 = Rs. 15000

∴ The required amount of savings = Rs. 15000

Given:

Income earned = Rs .28000

Formula used:

Share of wages = No of days × Efficiency per day

Calculation:

The ratio of the share of Shweta and Harish

⇒ 20 days × 5 : 30 days × 6

⇒ 5 : 9

Shweta share's = 28000 × 5/(5 + 9)

⇒ Rs. 10000

∴ Shweta's share is Rs. 10000.

The correct answer is Kerala.

Key Points

• Sabarimala temple is a famous temple in Kerala.
• It is dedicated to Lord Ayyappa.
• It is the ‘Sacred Abode of Lord Ayyappa’ and one of the most important Hindu pilgrim centre in India.
• The temple is open to people belonging to all religions.
• It is open for worship only during the days of Mandalapooja, Makaravilakku, Vishu and also during the first day of every Malayalam month.
• Pilgrims have to observe celibacy for 41 days before going to Sabarimala.

Important Points

• Famous pilgrimage sites in Kerala:
  • Anantha Padmanabha Temple.
  • Guruvayoor.
  • Attukal Bhagavathi Temple.
  • Thirunelly Temple.
  • Ambalappuzha Sree Krishna Temple.

Additional Information

• Famous pilgrimage sites in Andhra Pradesh:
  • Tirupati.
  • Tirumala.
  • Ahobilam.
  • Antharvedi.
• Famous pilgrimage sites in Odisha:
  • Jagannath Temple Puri.
  • Konark Sun Temple.
  • Parsurameswara Temple.
  • Mukteshwar Temple.
• Famous pilgrimage sites in Maharashtra:
  • Elephanta Caves.
  • Trimbakeshwar Jyotirlinga.
  • Shirdi.
  • Ellora, Aurangabad.
  • Shani Shingapur.

1) Medha is sitting diagonally opposite Radha.

We can randomly place Medha on any seat and then we can place Radha opposite her.

2) Medha is on Seema’s left.

3) Raman is next to Seema and opposite Govind.

Raman must be to Seema's right as Medha is to her left.

4) Govind is on Chandra’s right.

Implies, Chandra is sitting between Govind and Radha.

5) Shanti is not on Medha’s right but is opposite to Shashi.

Implies, Shanti is to the immediate left of Medha, and Sashi is between Radha and Raman.

Hence, "Seema" is opposite Chandra.

Given:

4 × 38 × 764 × 1256

Formula used:

Unit digit is the one's place of any digit.

Calculation:

4 × 8 × 4 × 6

⇒ 32 × 24

Take one's place both digit and multiply

⇒ 2 × 4 = 8

∴ Unit digit is 8.

The correct answer is 1556.

Key Points

• The second battle of Panipat took place in 1556.
• The second battle of Panipat was fought between the forces of Samrat Hem Chandra Vikramaditya(Hemu) and the Army of Akbar.
• Hemu was the Hindu king who has ruled North India from Delhi.
• The battle ended in a decisive Mughal victory under the leadership of Bairam Khan.
• The war ended the Mughal-Afghan contest for the throne of Delhi.
• Akbar assumed the reigns of the kingdom at the age of 18.

Additional Information

• First battle of Panipat took place in 1526.
  • It was fought between the Mughal ruler Babur and the Lodi dynasty.
  • The battle ended with the victory of the Babar and established the Mughal dynasty.
• Third Battle of Panipat took place in 1761.
  • It was fought between the Maratha Empire and the invading Afghan army under Ahmad Shah Durrani.
  • The battle ended with the victory of Ahmad Shah Durrani.

The correct answer is Kalhana.

Key Points

• Rajatarangini historical book written by Kalhana.
• It was written in the Sanskrit language.
• The word meaning of Rajatarangini is the River of Kings.

• Kalhana wrotes the Rajatarangini in the 12th century(1100-1150).

Additional Information

• Jayadeva is most known for his epic poem Gita Govinda.
• Chand Bardai was an Indian poet
  • He was most known for his epic poem Prithviraj Raso.

Given:

The adjacent angles of a rhombus are in the ratio of 3 : 6.

Property:

Adjacent angles of a rhombus are supplementary.

The opposite angles of a rhombus are equal.

Calculation:

Let the adjacent angles are 3x and 6x.

3x + 6x = 180°

⇒ 9x = 180°

⇒ 3x = 60°

∴ The smallest angle of the rhombus = 60°

A writer uses a pen to write his stories.

Similarly, a tailor uses needles to stitch the clothes.

A scalpel is used by doctors during surgeries.

An axe and a saw are used by a carpenters.

Hence, "needle" is the correct option.

In column 1:

5 + 6 x 6 + 7x 7 x 7 = 5 + 36 + 343 = 384

In column 2:
4 + 5 x 5 + 6 x 6 x 6 = 4 + 25 + 216 = 245
Similarly,

In column 3:
3 + 4 x 4 + 5 x 5 x 5 = 3 + 16 + 125 = 144

Hence, 144 is the correct answer.

The correct answer is Silk farming.

Key Points

• Sericulture is the production of raw silk by means of raising caterpillars (larvae).
• Bombyx mori is the most widely used and intensively studied silkworm for Silk farming.
• China and India are the leading producers of silk with more than 60% of the world's annual production.
• Silk is a fiber made up of proteins namely sericin and fibroin.

Additional Information

• Pisciculture is the scientific rearing and management of all fish farming.
• Apiculture is the scientific rearing of honey bees for the commercial production of honey and other bee products.
• Horticulture is related to fruit production
• Sylviculture is related to the cultivation of fodder crops
• Olericulture is related to the cultivation of vegetables.

The correct answer is Biodiversity.

Key Points

• World environment day is a global platform for raising awareness and taking action on urgent issues from marine pollution and global warming to sustainable consumption and wildlife crime.
• Since 1974, World Environment Day has been celebrated every year on 5^th June.
• "Biodiversity" is the theme declared by United Nations for World Environment Day, 2020.
• The 2020 World Environment Day theme focused on biodiversity – a concern both urgent and existential.
• The 2020 World Environment day was hosted by Colombia.
• More than 143 countries annually participating in the world environment day event.

Additional Information

• "Only one Earth during Expo '74" was the theme of first-world environment day in 1974.
  • The first-world environment day was hosted by Spokane, United States.
• "Ecosystem restoration" is the theme declared by United Nations for World Environment Day, 2021.
  • The 2021 World Environment day will be hosted by Pakistan.
• "Beat Plastic Pollution" was the theme declared by United Nations for World Environment Day, 2018.
  • The 2018 World Environment day was hosted by India.
• "Connecting People to Nature" was the theme declared by United Nations for World Environment Day, 2017.
  • The 2017 World Environment day was hosted by Canada.
• "Beat Air Pollution" was the theme declared by United Nations for World Environment Day, 2019.
  • The 2019 World Environment day was hosted by China.

The given word: LAUGHTER

GRUNT → LAUGHTER (N is not there in the given word)

GATE → LAUGHTER

HATE → LAUGHTER

RATE → LAUGHTER

Hence, "GRUNT" cannot be formed using the letters of the given word.

The correct answer is Navsari.

Key Points

• Mahatma Gandhi started the famous ‘Salt March’ from Sabarmati to Dandi in Gujarat.
• Dandi is a village located in the Navsari District of Gujarat.
• Navsari district of Gujarat is located between Surat & Mumbai.
• Navsari is the twin city of Surat.
• According to the Swachh Bharat Urban mission, Navsari is the 23rd "cleanest city of India".
• The Salt Satyagraha or The Dandi march was in 1930.
• In 1930, Mahatma Gandhi undertook the Salt Satyagraha protesting against the British salt laws.
• In 2019, the Government of India constructed a National Salt Satyagraha Memorial at Dandi to commemorate the Salt March of the Indian Independence Movement.

Additional Information

• Surat is a city located at the mouth of the Tapti River in Gujarat.
• Kutch is the largest district of India located in Gujarat.
• Porbandar is a city in Gujarat best known for being the birthplace of Mahatma Gandhi.

Given:

a3 - b3 = 125

a2 - b2 = 25

a + b = 5

Formulas used:

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

a3 - b3 = (a - b) (a2 + ab + b2)

Calculation:

a2 - b2 = 25

⇒ (a + b)(a - b) = 25

⇒ 5(a - b) = 25

⇒ (a - b) = 5

a3 - b3 = 125

⇒ (a - b) (a2 + ab + b2) = 125

⇒ 5 × (a2 + ab + b2) = 125

⇒ (a2 + ab + b2) = 125/5 = 25

∴ The value of (a2 + ab + b2) is 25

Given:

180 ÷ (23 + 32 + 1) + 37 - 20

Calculation:

180 ÷ (23 + 32 + 1) + 37 - 20

⇒ 180 ÷ (8 + 9 + 1) + 17

⇒ 180/18 + 17

∴ The required value = 10 + 17 = 27

Concept:

Dividend = Divisor × Quotient + Remainder

Calculation:

Smallest 5-digit number = 10000

Required number = 7 × Quotient + 6

Now, 10000 = 7 × 1428 + 4

As we need 6 as the remainder,

So, by adding 2 on both sides,

⇒ 10000 + 2 = 7 × 1428 + 4 + 2

⇒ 10002 = 7 × 1428 + 6

∴ The required 5 - digit smallest number is 10002

The correct answer is 1986.

Key Points

• The Environment (Protection) Act was passed by the Parliament of India in 1986.
• The act was passed In the wake of the Bhopal gas Tragedy in Madhya Pradesh.
• The act came into force on 19 November 1986.
• The main objective of the act is to providing protection and improvement of the environment.
• Environment Protection Act 1986 consists of 26 sections and 4 chapters.
• It was enacted under Article 253 of the Indian Constitution
• The Act was last amended in 1991.

Paediatrics is the branch of medical science that deals with children.

Similarly, neurology is the branch of medical science that deals with the human brain.

Hence, "brain" is the correct answer.

Additional Information

The study of heat is called Thermodynamics.

The study of eyes is called Opthalmology.

The study of veins is called Vascular studies.

The correct answer is Lichen.

Key Points

• A mutual relationship in which organisms live together and share their shelter and nutrients is called a symbiotic relationship.
• Lichens are made up of two or more closely interacting organisms, a fungus, and one or more partners called photobionts.
• Lichens are an association of alga and fungus living together for their mutual benefits
• The fungus provides shelter and maintains the humidity for alga inside the lichen body, necessary for the alga for the process of photosynthesis.
• The alga in return provides the food material, prepared during photosynthesis to the fungus.

• Examples of symbiotic relationships are:
  • Relation between bee and a flower.
  • Rhizobium bacteria and leguminous plants.
  • Relationship between an anemone (Heteractis Magnifica) and a clownfish (Amphiron ocellaris).

Maldives is NOT correct.

Key Points

• BIMSTEC is the acronym for Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation.
• It is a regional organization comprising seven Member States lying in the littoral and adjacent areas of the Bay of Bengal constituting a contiguous regional unity.
• BIMSTEC came into being on 6 June 1997.
• Seven countries are members of BIMSTEC:
  1. Bangladesh
  2. Bhutan
  3. India
  4. Nepal
  5. Sri Lanka
  6. Myanmar
  7. Thailand

Formulas used:

sec (90 - x) = cosec x

cot (90 - x) = tan x

Calculation:

5 sin 14° sec 76° + 3 cot 15° cot 75° + 2 tan 45°

⇒ 5 sin 14° cosec 14° + cot 15° tan 15° + 2 × 1 [tan 45° = 1]

⇒ 5 sin 14° . 1/sin 14° + 3 cot 15 . 1/cot 15° + 2 [cosec x = 1/sin x]

⇒ 5 + 3 + 2 [cot x = 1/tan x]

∴ The required result = 10

The correct answer is Paraguay and Bolivia.

Key Points

• South America is one of the seven continents in the world.
• Paraguay and Bolivia are the two landlocked countries in South America.
• A landlocked country is a country that has no access to marine water bodies and is entirely bordered by land.
• Paraguay and Bolivia have a navy despite not having a sea border.

Important Points

• Asuncion is the capital of Paraguay.
• Guaraní is the currency of Paraguay.
• Bolivia is a landlocked country located in western-central South America.
• Sucre is the capital of Bolivia.
• Boliviano is the currency of Bolivia.

Additional Information

• The South American continent generally includes 12th Sovereign States:
  1. Argentina.
  2. Bolivia.
  3. Brazil.
  4. Chile.
  5. Colombia.
  6. Ecuador.
  7. Guyana.
  8. Paraguay.
  9. Peru.
  10. Suriname.
  11. Uruguay.
  12. Venezuela.

Given:

The curved surface area of cylinder = 528 cm2

Height = 14 cm

Formulas used:

Curved surface area = 2πRH

Volume = πR²H

Calculation:

CSA = 528 = 2 × 22/7 × R × 14

⇒ R = 6 cm

Volume of the Cylinder = 22/7 × 6 × 6 × 14 = 1584 cm³

∴ The volume of cylinder = 1584 cm3

The correct answer is 60 kg.

Key Points

• The mass of man on the surface of the moon will remain the same as on earth.
• Mass doesn’t change according to location.
• The mass of a body is the same on Earth and Moon and is equal to 60kg.
• Mass is the measure of the amount of matter in a body.
• The SI unit of mass is kilogram (kg).
• Mass is a scalar quantity and It has magnitude.
• The mass of a body is not dependent on time.
• Mass is not dependent on gravity.
• Mass can never be zero.

Mistake Points

• Weight is defined as a measure of the gravitational force on that body at that place.
• Weight = Mass x Surface Gravity.
  • Surface Gravity on Moon = 1/6 Surface Gravity on Earth 
  • Surface Gravity on Earth= 9.8 m/s².
•  Weight on moon = 60 x 1/6 x 9.8 
• Weight on moon= 98 N.

The correct answer is 2013.

Key Points

• ISRO launched its Mars Orbiter Mission on 5^th November 2013.
• It was the maiden interplanetary mission of ISRO.
• The mission got inserted into Martian orbit on 24^the September 2014 in its first attempt.
• The mission completed its 1000 Earth days in its orbit on 19^th June 2017.
• The mission was launched with an objective to explore and observe Mars surface features, morphology, mineralogy and the Martian atmosphere.
• Mars Orbiter Mission was launched with an XL variant of the PSLV, PSLV C-25.
• Mars Orbiter Mission made ISRO the fourth space agency to achieve this feat after Roscosmos, NASA, and the European Space Agency.
• India is the first Asian country to reach Martian orbit as well as the first nation in the world to achieve this in its maiden attempt.
• The Mars Orbiter Mission (MOM) is also called Mangalyaan.

Given:

Sinθ = 3/5 

cosθ = 4/5

Formula used:

tanθ = sinθ/cosθ

cotθ = 1/tanθ

Calculation:

tan θ = 3/5 ÷ 4/5 = 3/4

According to the question,

​⇒ = (1 + 3/4) ÷ (1 - 4/3)​

⇒ (7/4) ÷ (-1/3)

⇒ -21/4

∴ The result is -21/4

The given table:

The pattern followed here is:

In column I,

6² - 8 = 28

36 - 8 = 28

In column II,

9² - 18 = 63

81 - 18 = 63

Similarly, in column III,

13² - ? = 94

169 - ? = 94

? = 169 - 94

? = 75

Hence, "75" will replace the question mark in the table.

The given series: 69, 55, 26, 13, ?

The logic follows here:

Previous number digits multiply with each other + 1 = next number.

The pattern followed here is:

6 × 9 + 1 = 55

5 × 5 + 1 = 26

2 × 6 + 1 = 13

1 × 3 + 1 = 4

Hence, the next number of the series would be "4".