RRB NTPC Mock Test - 2 (English) - Railways MCQ

• LTE is a standard for wireless communication of high-speed data for mobile phones and data terminals.
• It is based on the GSM/EDGE and UMTS/HSPA network technologies

All except Allow-permit are antonyms pairs. Allow is synonyms of permit.

Hence, Allow-Permit is the odd pair

Given Series: B, E, I, N, ?

The logic followed for the letters:

Hence, the next term will be T.

Relation in MSTU : NTVW is

Similarly;

Hence, “MTRT” is the correct answer

Given, Husk in 20 kg of mixture = 5% of 20 = 1 kg

Let x kg husk is been added

According to the question,

⇒ 1 + x = 20% of (20 + x)

⇒ 1 + x = (1/5) × (20 + x)

⇒ 5 + 5x = 20 + x

⇒ 4x = 15

⇒ x = 15/4 = 3.75

∴ 3.75 kg of husk must be added.

• Contour farming is a biological method of soil conservation.
• This method is practiced in the hilly regions or on the slopes.
• Farming on the contour creates small ridges that slow runoff water, and it increases the rate of water infiltration, reduced the hazard of erosion.

Rest all are mechanical methods.

• American David Malpass is selected as the new President of the World Bank.
• David Malpass is currently the US Treasury Department's Under Secretary for International Affairs.
• He was a senior economic adviser to US President Donald Trump during his 2016 election campaign.
• Malpass succeeded Jim Yong-Kim, who stepped down on February 1 to join an investment firm.

Here, the hands of the clock coincides for every 1 hour. But between 11 and 12 and 12 and 1, the hands of clock coincides only once that is at 12 : 00.

to prove this we have formula;

30(11) = (11/2)M । 30(0) = (11/2)M (Here zero is 12)

M = 660 / 11 । 0 = 11M

M = 60 । M = 0

i.e; 11 : 60 = 12 : 00 । i.e; 12 : 00

Hence, 11 times the hands of the clock coincides in 12 hours.

Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another.

Sound waves, Earthquake waves and Water surface waves are examples of mechanical waves while light waves are examples of electromagnetic waves.

‘The Making of a Legend’ is written by Sulabh International Chief Bindeshwar Pathak. The book chronicles the life of Prime Minister Narendra Modi. The book was released by RSS chief Mohan Bhagwat on July 12. 

Area of square = 121 cm²

Let the side of square be ‘a’ cm,

⇒ a² = 121 cm²

⇒ a = 11 cm

Now, the length of the wire = Perimeter of square

⇒ Length = 4 × 11 = 44 cm

Also, Length of wire = Perimeter of circle

⇒ 2πr = 44 cm

⇒ 2 × 22/7 × r = 44 cm

⇒ r = 7 cm

Area of circle = πr²

∴ Area = 22/7 × 7 × 7 = 154 cm²

Cytokinin is the plant hormone that induces cell division. It also plays an important role in coordination of many growth and behavioural processes in the plant's life cycle.

100 gm of water can dissolve as much as 52.9 gm of ammonia at 20 degree Celsius and 1 atm pressure. A solution of ammonia in water is called ammonium hydroxide, NH₄OH. Ammonia's high solubility in water is due to hydrogen bonding with water molecules.

Let the rational number be x

x + (1/x) = 61/30

⇒ 30x² - 61x + 30 = 0

⇒ 30x² - 25x - 36x + 30 = 0

⇒ 5x(6x - 5) - 6(6x - 5) = 0

⇒ (6x - 5)(5x - 6) = 0

∴ x = 5/6, 6/5

• Len'z law is not related to gases.
• Lenz's law is a common way to understand how electromagnetic circuits obey Newton's third law and the conservation of energy. It is named after Heinrich Lenz and says: an induced electromotive force always gives rise to a current whose magnetic field opposes the change in original magnetic flux.

Padmavat is an epic poem written in 1540 by Sufi poet Malik Muhammad Jayasi, who wrote it in the Hindustani language of Awadhi, and originally in the Persian Nastaʿlīq script. It is the oldest extant text among the important works in Awadhi.

Goldilocks region is an area of space in which a planet is just the right distance from its home star so that its surface is neither too hot nor too cold. Earth lies in the Goldilocks zone.

In all the words “Na” is in common. The next letters are r, t.

So Narrow comes first.

And “Nat” is common in Native, Nation and Natural.

So in this the letter “i” comes first than “u”, but with “ï” again we have two words those are Native and Nation. So here “Nati” is common.

Consider the next letter that is “o “ comes first than “v“. Hence Nation will be the second word and Native will be third.

And Natural will be fourth.

Finally, dictionary order:

Narrow, Nation, Native, Natural.

Hence, Natural becomes fourth.

The series consists of prime position of alphabet.

C = 3

E = 5         

G = 7

Q = 17

U = 21 (this is not a prime position)

So, the wrong term is U.

As per the given information,

Hence, Ramesh is now facing to the North-west direction, with respect to the starting point.

The Agra Lucknow Expressway is a 302 km controlled-access highway or expressway, constructed by the Uttar Pradesh Expressways Industrial Development Authority. It is India’s longest expressway.

A group of fishes is known as School.

Similarly, a group of frogs is known as Army.

Hence Frogs is the answer.

Alluvial, Regur and Laterie are types of soil

Whereas clay is the component of soil.

Hence, Clay is the odd term.

360° = 9000 tons

⇒ 1° = 25 tons

Now rice = 40°

⇒ rice = 40 × 25 = 1000

∴ yield of rice = 1000 tons

1) 3 → represents triangle and rectangle.

2) 7 → represents circle and rectangle.

3) 4 and 5 → 4 represents triangle, circle and rectangle, whereas 5 represents triangle and circle.

As number which represents triangle and circle is number 5.

Hence mark your answer as “None of the above”.

Chand Bardai was an Indian poet, who composed Prithviraj Raso, an epic poem in Brajbhasa about the life of the Chahamana king Prithviraj Chauhan. The poem presents him as a court poet of Prithviraj.

Sodium Chloride is the chemical name of common salt. It is formed when Sodium and Chlorine react with each other to give this salt and water. 

We have CD = 40 m.

In ΔABC,

tan 60 = AB/BC

⇒ √3 = AB/BC

⇒ AB = √3 BC

Now, we have

In ΔABD,

⇒ tan 30 = AB/(BC + 40)

⇒ BC + 40 = 3 BC

⇒ BC = 20 m.

Hence, AB = √3 BC

⇒ AB = 20√3 m.

Let Roshan’s age be x and Usha’s age be y

Roshan’s current age is 2 years less than 1.6 times that of Usha’s,

⇒ x = 1.6y – 2

⇒ 8y – 5x = 10      ----(1)

8 years ago, Usha’s age was 1 year more than half of Roshan’s age 8 years ago,

⇒ 2y – x = 10

⇒ 8y – 4x = 40      ----(2)

From (1) and (2) we get,

⇒ 5x – 4x = 40 – 10

⇒ x = 30

∴ Roshan’s present age = 30 years

From the statement, it is clear that both the brother as well as sister are not interesting(boring). Hence both the assumptions are invalid as one says that the brother is interesting and the other talks about who is more interesting.