RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 1251
Arithmetic
When was 'Operation Shield' conducted across India's border states and union territories?
A
29 May 2021B
31 May 2021C
3 June 2021D
7 May 2021Question 1252
Arithmetic
Where will the 18th edition of Pravasi Bharatiya Divas (PBD) be held in 2021?
A
BhubaneswarB
MumbaiC
New DelhiD
ChennaiQuestion 1253
Arithmetic
According to the principle of collective responsibility in India's parliamentary system, a successful no-confidence motion against a single Union Minister requires which action?
A
The Lok Sabha is immediately dissolved.B
The entire Council of Ministers must resign.C
Only the targeted minister must resign.D
The President dismisses only the targeted minister.Question 1254
Arithmetic
What is the name of ISRO's mission launched in January 2024 to study the polarisation of cosmic X-rays?
A
XPoSatB
Aditya-L1C
RISAT-1D
AstroSatQuestion 1255
Arithmetic
In a chemical reaction, the substances that are initially present before the reaction starts are called ________.
A
reactantsB
productsC
intermediatesD
catalystsQuestion 1256
Arithmetic
Which of the following best describes the role of the Control Unit within the Central Processing Unit?
A
It displays the processed output to the user.B
It performs all mathematical and logical calculations.C
It directs and coordinates the activities of all components of the computer.D
It stores data and instructions temporarily during processing.Question 1257
Arithmetic
Which of the following organisations was one of the co-organisers of the 14th Asian Fisheries and Aquaculture Forum (14AFAF) held from 12 to 15 February 2021 at Pusa Campus, New Delhi?
A
United Nations Environment Programme (UNEP)B
Food and Agriculture Organization (FAO)C
Asian Fisheries Society Indian Branch (AFSIB)D
World Health Organization (WHO)Question 1258
Arithmetic
Which of the following substances constitutes the primary material of the "Mother Goddess" sculpture originating from the Indus Valley Civilisation?
A
BronzeB
LimestoneC
TerracottaD
SteatiteQuestion 1259
Arithmetic
The Khelo India Youth Games 2021 was organised from which date to which date at different locations in Bihar?
A
1 to 10 May 2021B
4 to 18 May 2021C
8 to 20 May 2021D
4 to 15 May 2021Question 1260
Arithmetic
If an RTI applicant is aggrieved by the Public Information Officer's decision (or lack of response), within how many days must the first appeal be filed under Section 19 of the RTI Act?
A
15 daysB
90 daysC
30 daysD
60 daysQuestion 1261
Arithmetic
The Department of Financial Services (DFS) notified amalgamation of 26 Regional Rural Banks (RRBs) on the principles of 'One State One RRB' in which phase of amalgamation of RRBs in 2021?
A
FifthB
SecondC
ThirdD
FourthQuestion 1262
Arithmetic
Which system of land tenure prevalent before independence led to exploitation of farmers?
A
Mahalwari systemB
Zamindari systemC
Cooperative farmingD
Ryotwari systemQuestion 1263
Arithmetic
During Shahjahan's rule, how many mansabdars out of 8000 were higher ranking mansabdars who received 61.5% of the total estimated revenue of the empire as salaries for themselves and their troopers?
A
445B
545C
245D
345Question 1264
Arithmetic
Recipient of Padma Shri in 2021, Shri Onkar Singh Pahwa, is related to which cycle company of India?
A
Avon CyclesB
Hero CyclesC
Atlas CyclesD
Tata StryderQuestion 1265
Arithmetic
Which of the following places may receive an amount of rainfall in a single day that is equal to 10 years of rainfall at Jaisalmer?
A
TuraB
LehC
AsansolD
SiliguriQuestion 1266
Arithmetic
Urban transport infrastructure generally refers to the systems that facilitate the movement of people and goods within a city. Which of the following is NOT a part of urban transport infrastructure?
A
Water irrigation pipelinesB
Public bus systemsC
Metro rail networksD
Flyovers and expresswaysQuestion 1267
Arithmetic
Which statutory body organised a two-day National Conference on 'Environment - 2021' at Vigyan Bhawan, New Delhi, in March 2021?
A
Central Ground Water AuthorityB
Central Pollution Control BoardC
National Biodiversity AuthorityD
National Green TribunalQuestion 1268
Arithmetic
Who was the first Finance Minister of Independent India?
A
John MathaiB
R K Shanmugham ChettyC
Rafi Ahmed KidwaiD
Jairamdas DaulatramQuestion 1269
Arithmetic
Which country signed a contract with India in April 2021 to supply 26 Rafale Marine fighter jets?
A
United KingdomB
FranceC
United StatesD
RussiaQuestion 1270
Arithmetic
Who obtained the first accurate value of the speed of light using a rotating mirror apparatus in 1862?
A
Albert A MichelsonB
Charles WheatstoneC
Jean Bernard Léon FoucaultD
Marie Alfred Alen CornuQuestion 1271
Arithmetic
Which Buddhist scripture explicitly states "All dhammas are without self," affirming the doctrine of Anatta?
A
DhammapadaB
Kalpa SutraC
Bhagavati SutraD
UttaradhyayanaQuestion 1272
Arithmetic
Which initiative, launched in 2021, aims to develop quantum-encrypted communication for tamper-proof defence networks in India?
A
SecureNet IndiaB
National Cyber Security MissionC
National Quantum MissionD
Quantum Leap ProgramQuestion 1273
Arithmetic
How does deforestation lead to desertification?
A
It increases humus in the soil.B
It removes the top fertile soil layer, exposing hard, rocky layers.C
It increases rainfall in dry regions.D
It reduces soil erosion.Question 1274
Arithmetic
What is the most direct impact of poor infrastructure on rural education?
A
Poor mid-day mealsB
Lack of trained teachersC
High student absenteeismD
Low awareness about schemesQuestion 1275
Arithmetic
As of 2024, who among the following holds the national record in women's weightlifting (49 kg category) in India?
A
Sanjita ChanuB
Saikhom Mirabai ChanuC
Punam YadavD
Karnam Malleswari