RRB NTPC Mock Test - 3 (English) - Railways MCQ

• Xylem is the tissue which carries water up through a plant.
•  It also transports nutrients.
• It is made up of vessels or tracheids, xylem parenchyma and xylem fibre.
• Sieve tubes are long column - like cells in the phloem.

All except pedal are the parts of a car.

Hence, Pedal is the correct answer.

Let Tom’s age and his father age be A and B years respectively.

Tom’s father is thrice as old as Tom,

⇒ B = 3A

10 years ago, Tom’s father’s age was 7 times his age,

⇒ (B – 10) = 7(A – 10)

⇒ A = 15

∴ Tom's age is 15 years. 

The relation among given numbers is:

2 → first prime number

4 → first non-prime number

3 → second prime number

6 → second non-prime number

5 → third prime number

8 → third non-prime number

7 → fourth prime number

9 → fourth non-prime number

11 → fifth prime number

10 → fifth non-prime number

Hence, “10” will complete the series.

Visible light is just a part of the electromagnetic spectrum that our eyes can see. LED bulbs only emit visible lights which makes it more efficient than incandescent bulbs. So, A is true but R is false.

Russia is the largest country by area.

Similarly, Vatican City is the smallest country by area.

Hence Vatican City is the answer.

Given: (-1/2) * (x - 5) + 3 = 5/2

= -x + 5 / 2  + 3 = 5/2
= -x + 5 + 6 / 2 = 5/2
= -x + 5 + 6 = 5
= -x = - 6
= x = 6.

Five students namely A, B, C, D and E went to a theatre to watch a movie

It is given that D and E occupies the extreme positions and B sits exactly between E and C.

The left out position is occupied by A.

The diagram is as follows:

So, the correct seating arrangement is D, A, C, B, E or E, B, C, A, D.

Hence, in both cases C is sitting exactly between A and B.

Five students namely A, B, C, D and E went to a theatre to watch a movie

It is given that D and E occupies the extreme positions and B sits exactly between E and C.

The left out position is occupied by A.

The diagram is as follows:

So, the correct seating arrangement is D, A, C, B, E or E, B, C, A, D.

Hence, the correct answer is either 1 or 3.

All are Synonyms except Familiar.

Hence, the correct answer is Familiar.

Number of diagonal of a polygon = [n × (n – 3)] /2

For decagon, n = 10

∴ Number of diagonals = (10 × 7)/ 2 = 35

Wrought iron is the purest form of iron. It is an iron alloy with a very low carbon (less than 0.08%) content in contrast to cast iron (2.1% to 4%).

Steel is an alloy of iron and other elements, primarily carbon.

Pig iron has a very high carbon content, typically 3.5 - 4.5%.

As per the given information,

Hence, ‘Vani is facing in the East direction now’.

Given, ∠E = 90° and ∠F = 45°

By angle sum property of triangle,

∠D = 180° - (∠E + ∠F) = 180° - (90° + 45°) = 45°

∴ tan D - (√3/2) = tan 45° - (√3/2) = 1 - (√3/2) = (2 - √3)/2

We observe the following pattern:

Hence using the same pattern for PERFECT:

So, the answer is QGUJJIA.

Let the salary of Tanya be ‘x’.

After 15% increment, her salary will be 1.15x

⇒ 1.15 × x = 14030

⇒ x = 14030/1.15

∴ Original salary, x = Rs. 12,200

Let number of chairs be M,

Vishnu spends RS. 5000 in buying 12 tables and some chairs,

⇒ 5000 = 12 × 50 + M × 40

⇒ 40M = 4400

⇒ M = 110

∴ Required ratio = 110 : 12 = 55 : 6

• The digestion of protein leads to the production of amino acids which get absorbed by the digestive tracts in the body.
• The enzyme pepsin plays an important role in the digestion of proteins by breaking down the intact protein to peptides, which are short chains of four to nine amino acids.

• Microsoft ASP is a server-side scripting environment that you can use to create and run dynamic, interactive Web server applications
• It is Microsoft's first server-side script engine for dynamically generated web pages.

• A superconductor is an element or metallic alloy which, when cooled below a critical temperature of the substance, loses all electrical resistance.
• Simply, superconductors can allow electrical current to flow without any energy loss (although, in reality, an ideal superconductor is very hard to produce). 
• Superconductors are the materials that offer little or no resistance to electricity.

• The government of India appointed Krishnamurthy Subramanian as the Chief Economic Advisor (CEA) on 7 December 2018.
• He will have a tenure of three years.
• He is currently working as an Associate Professor at the Indian School of Business (ISB), Hyderabad.
• He also serves on the boards of Bandhan Bank, the National Institute of Bank Management and the RBI Academy.

Given,

⇒ √9409 = √(97 × 97) = 97

• An endangered species is a species which has been categorized as likely to become extinct.
• The White Tiger is a Bengal Tiger which is a species listed by the IUCN as Endangered and therefore severely threatened in its surrounding environment.

Given,

+ → ÷

× → +

- → ×

÷ → -

24 + 18 –  3 × 3 ÷ 9

After changing the symbols as per the given codes,

⇒ 24 ÷ 18 ×  3 + 3 - 9

⇒ -2

Hence, the correct value is -2.

On arranging given word as per dictionary order,

ii. Identical

iv. Identify

i. Ignore

iii. Illness

Hence, “ii, iv, i, iii” is correct order as per dictionary.

Energy is measured in the same unit as work because energy is defined via work (i.e. the capacity of a physical system to do work), the SI unit for energy is the same as the unit of work Joule (J). 

Bit is the smallest unit of information a computer can understand. A bit has a single binary value, either 0 or 1.

Cost price = Rs. 1200

Loss = 15 %

⇒ Loss = (1200 × 15)/100 = Rs. 180

⇒ Marked price = 1200 – 180 = Rs. 1020

Further, the price is reduced by 5%,

∴ Selling price = 1020 – (1020 × 5)/100 = Rs. 969

Upstream speed = 48 km/hr and Downstream speed = 80 km/hr

∴ Average speed = (2 × 48 × 80)/(48 + 80) = 7680/128 = 60 km/hr

B = 2, 2 × 2 = 4, 4 = D, BD.

D = 4, 4 × 2 = 8, 8 = H, DH.     

F = 6, 6 × 2 = 12, 12 = L, FL.

H = 8 ,8 × 2 = 16, 16 = P, HP.

J = 10, 10 × 2 = 20, 20 = T, JT

So, the wrong term is DK.