RRB NTPC Mock Test - 8 (English) - Railways MCQ

In each pair of figure in option 1, 2 and 4, both the figures are same except that the shape in figure (i) is increased by one in figure (ii), i.e. in option 1, figure (i) has one big circle while figure (ii) has two big circles. There is no other change.

However, in option figure (3), figure (i) is rotated 90 degree clockwise alongwith the addition of the shape to form figure (ii).

Hence option figure (3) is the odd one.

The correct answer is option 1. There should be different restraints on the first world and the third world countries to reduce air pollution.

From the passage, we can conclude that the world is facing serious problems due to air pollution, so we need to control it but same restraints cannot be placed on the first world and the third world countries as it would be unfair to the third world countries. It can be said that there is a need to put different restraints on the third world and the first world countries so as to be fair and to reduce the pollution.Hence, option 1 is the correct solution.

Here the alphabets in rectangle represents Chefs: A and B

Circle represents Choreographers: D, G, E and F

Triangle represents Divers: E, G, H, and I

Square represents Americans: C, E, H, D and B

Set of letters represents Americans who are either Choreographers or Divers are letters in Square and common with Triangle or Circle, which is DEH.

Hence, ‘DEH’ is the correct answer.

• Tuberculosis Bacteria was discovered by Robert Koch.
• It is a potentially serious infectious bacterial disease that mainly affects the lungs.
• It is among the top 3 causes of death for women aged 15 to 44.
• It can spread through the air from person to person

• Meenakshi Amman Temple is located in Tamil Nadu.
• It is also known as Meenakshi-Sundareshwara Temple.
• It was built by ViswanathaNayak during the Nayak rule and is located in the heart of the city of Madurai.

• Trygve Lie was the first Secretary General of the United Nations.
• He served for the period of 6 years i.e, 1946 to 1952.
• Antonio Guterres is the current Secretary‑General of the United Nations.
• The headquarters of the UN is in Manhattan, New York City.

• Oberon is the moon of Uranus.
• It is discovered by William Herschel in 1787.
• The mean distance of Oberon from the center of Uranus is about 582,600 km.
• Oberon is the second largest and most massive of the Uranian moons.

The Battle of Ghaghra was fought in the year 1529 between Babur and Mohammad Lodi (Afghans).

The famous battles fought in the above mentioned years are as follows:

• LSI is used in computer technology stands for Large Scale Integration.
• It is the process of integrating or embedding thousands of transistors on a single silicon semiconductor microchip.
• This technology was conceived in the mid-1970s.
• This technology is no longer in use, It is succeeded by very large-scale integration (VLSI) and ultra large-scale integration (ULSI) technologies.

Clearly, A is the grandfather of J.

Colour of a ripe mango is ‘yellow’ which is written as ‘white’.

Thus, the colour of the mango is white.

• The SI unit of Surface Tension is Newton/meter (N/m).
• The tendency of fluid surfaces to shrink into the minimum surface area possible is known as Surface tension.
• Agnes Pockels discovered the influence of impurities on the surface tension.

Let the number of students in rooms A and B be x and y respectively.

⇒ x - 15 = y + 15

⇒ x - y = 30             - - - - - equation 1

Also from the given data

⇒ x + 25 = 2 (y - 25)

⇒ x + 25 = 2y - 50

⇒ x - 2y = -75                    - - - - - - - equation 2

From equation 1 and equation 2, we get

⇒ Equation 1 - Equation 2, we get y = 105

Substitute y = 105 in equation 1, we get

⇒ x = 135

∴ Number of students in rooms A and B are 135 and 105

Given

2A = 3B

⇒ A : B = 3 : 2 = 15 : 10

And, 3A = 5C 

⇒ A : C = 5 : 3 = 15 : 9

Hence, A : B : C = 15 : 10 : 9

• The Battle of Haldighati was fought between Akbar and Maharana Pratap.
• It was named Haldighati because the sand colour of the area is yellow like haldi.
• The battle fought on 18 June 1576.
• Haldighati is situated in Rajasthan, India.

As there are 52 weeks and 1 day in a non-leap year and 52 weeks and 2 days in a leap year.

Thus, there can be definitely maximum 53 Tuesdays in a year.

• Mercury is a chemical element with symbol Hg and atomic number 80.
• It is also known as quicksilver.
• It is the only metal that is a liquid at standard temperature and pressure.
• It is commonly used in fluorescent lights, felt production, thermometers, and barometers.

= cos⁴θ + sin⁴θ + sin²θcos²θ

= 1 − 2sin²θcos²θ + sin²θcos²θ

= 1 − sin²θcos²θ

Changing operators as given format.

Given expression: 363 × 3 ÷ 4 - 15 ÷ 20 + 1

After interchanging symbols: 363 ÷ 3 + 4 × 15 + 20 - 1 = 121 + 60 + 20 - 1 = 200

Hence, the correct answer is 200.

Hence, the unfolded figure will be similar to option 2.

• Florida Strait separates the USA with Cuba.
• It is a strait located in south-southeast of the North American mainland.
• The strait carries the Florida Current, the beginning of the Gulf Stream, from the Gulf of Mexico.

Part filled by pipe A in 1 hr. = 1/8

Part filled by pipe B in 1 hr. = 1/10

Part filled by pipes A & B in 1 hr. = 1/8 + 1/10 = 9/40

Part filled by pipes A & B in 2 hrs. = 4 × 9/40 = 9/10

∴ After 4 hours, 9/10 part of the cistern is filled

IN ΔABC

• Methane and Carbon dioxide are the main constituent of Biogas.
• Methane is produced by the anaerobic bacterial decomposition of vegetable matter under water.
• It is also known as marsh gas or swamp gas.
• Its chemical formula is CH_4.

Let average runs be x.

Total runs in 9 matches = 9x

Average runs after 10^th match = (9x + 111)/10 = x + 5 (given)

⇒ 9x + 111 = 10x + 50

⇒ x = 61

∴ Average after 10^th match = 61 + 5 = 66

• The Simla Conference was held in 1945.
• It was a meeting between the Viceroy Lord Wavell and the major political leaders of British India at Shimla, India.
• It was conducted to discuss the provisions of the Wavell Plan
• The conference began in Simla on June 24, 1945, and lasted till July 14, 1945.
• Simla Conference proved out as a failure.

Speed of the train = 65 kmph

Speed of the man = 7 kmph

Since, they travel in the opposite direction

Relative speed = Speed of train + Speed of man = 65 + 7 = 72 kmph

Relative speed =  = 20 m/s

Time taken by train to pass the man = 13 s

Length of the train = Relative speed × Time taken by train to pass the man = 20 × 13 = 260 m

• The famous Sanchi Stupa is associated with Buddhism.
• It is located in north-east of Bhopal, Madhya Pradesh.
• It is developed in Buddhist architecture.
• It is made out of locally quarried sandstone.
• Its construction got started in 3rd century BCE.
• The height of the Sanchi Stupa is about 54.0 ft.

Given, 11.11% of Aditi’s age = 66.67% of Farah’s age

⇒ 1/9 × Aditi’s age = 2/3 × Farah’s age

⇒ Aditi’s age = 9 × 2/3 × Farah’s age

⇒ Aditi’s age = 6 × Farah’s age       ----(1)

Also, 60% of Farah’s age = 20% of Sana’s age

⇒ 3/5 × Farah’s age = 1/5 × Sana’s age

⇒ Sana’s age = 5 × 3/5 × Farah’s age

⇒ Sana’s age = 3 × Farah’s age      ----(2)

Dividing (1) by (2), we get,

⇒ Aditi’s age/Sana’s age = 6/3 = 2

∴ Ages of Aditi and Sana is in the ratio 2 ∶ 1