Railway RRB Group D 2018 Practice Questions | Set-1

D. U46Z

Here the place of letter in English alphabet is added and written in the middle

1) B10H → B = 2; H = 8 hence 8 + 2 = 10

2) J26P → J = 10; P = 16 hence 10 + 16 = 26

3) N34T → N = 14; T = 20 hence 14 + 20 = 34

4) U46Z →  U = 21; Z = 26 hence 21 + 26 = 47 which is not equal to 46

A. Karnataka

Bidar Railway Station is located in Karnataka.  The 110 km Bidar-Kalaburgi railway track in the Hyderabad-Karnataka region that will reduce the distance between Bengaluru and New Delhi by 380km and travel time by six to eight hours.Prime Minister also flagged off the DEMU Service between Bidar and Kalaburagi.

C. 359

Indian Railways has launched the main arch of the world’s highest bridge on the river Chenab in Jammu and Kashmir’s Reasi district. It will provide direct connectivity to the Kashmir valley. The bridge will stand 359 meters above the bed of the River Chenab and will be 30 meters higher than the Eiffel Tower in Paris. The bridge forms link in the 111-km distance between Katra and Banihal.

A. 47

Sum of first 93 natural numbers = n(n + 1)/2 = 93(94)/2 = 4371

⇒ Average of first 93 numbers = 4371/93 = 47

 C. Vidarbha

Vidarbha made history by winning their first ever Ranji Trophy title, beating Delhi by nine wickets in Indore. This was Nagpur-based Vidarbha’s first ever appearance in a Ranji Trophy final. Fast bowler Rajneesh Gurbani took 6 for 59, including a hat-trick.

Kala-azar is a chronic and potentially fatal parasitic disease of the viscera (the internal organs, particularly the liver, spleen, bone marrow and lymph nodes) due to infection by the parasite called Leishmania donovani. 

A. Racing

Lalita Babar is an Indian long-distance runner. She predominantly competes in the 3000 metres steeplechase and is the current Indian national record holder and the reigning Asian Champion in the same event.

D. Hygrometer

A hygrometer is an instrument used to measure relative humidity. Humidity is the measure of the amount of moisture in the air.

A. Krypton

Melting point of Platinum, Sodium, Antimony and Krypton is 1,768 °C, 97.79 °C, 630.6 °C and -157.4 °C respectively. Therefore, Krypton has the lowest melting point of all these elements.

D. Dental Caries

Fluorine deficiency is a disorder which may cause increased dental caries or tooth decay and possibly osteoporosis (a bone disorder which leads to a decrease in bone mass and an increase in bone fragility).

A. M. K. Gandhi

The Story of My Experiments with Truth is the autobiography of Mohandas K. Gandhi, covering his life from early childhood through to 1921.

C. 25/4%

Let marked price (MP) = Rs. 100

Selling price (SP) after giving 12% commission = 100 – (12% of 100) = Rs. 88

Let cost price (CP) of work be Rs. x.

Gain = 10%

We know that,

SP = CP + Gain

⇒ x + (10% of x) = 88

⇒ 1.1x = 88

⇒ x = Rs. 80

If commission = 15%

⇒ SP = 100 – (15% of 100) = Rs. 85Gain = 85 – 80 = Rs. 5

Gain% = (Gain/CP) × 100 = (5/80) × 100 = 6.25%

∴ Gain% = 6.25%

D. Jyoti Prakash Nirala

The Country celebrates its 69th Republic Day on 26th January. The family members of Corporal Jyoti Prakash Nirala (Posthumous) of the Indian Air Force (IAF), who died fighting militants in Kashmir valley, received India’s highest peacetime gallantry award, Ashok Chakra. This is the third Ashok Chakra for the IAF and its first for ground combat.

B. Graphite

Graphite is used in the pencils for it to allow smooth writing. It is a form of carbon and is also used in the batteries as an anode.

B. 8.4

Time taken = Distance/ Speed

Distance covered by train = Length of train + Length of platform

⇒ 150 + 270 = 420 m

Speed of train = 180 km/h = (180 × 1000)/3600 = 50 m/s

Time taken by train to transverse a platform = Distance covered by train/Speed of train

⇒ 420/50 = 8.4 s

∴ Train will take 8.4 seconds to cross a platform.