RRB-NTPC 2021 Mathematics

Practice subject-wise previous year questions

Question 101
Arithmetic

What can happen if rocks are not weathered in the context of the movement of Earth's materials?

A
Mass movement would be more frequent
B
Soil fertility would improve
C
Erosion would be insignificant
D
Erosion would increase
Question 102
Arithmetic

Which of the following Acts aims to prevent money laundering in India?

A
SEBI
B
FEMA
C
PMLA
D
FCRA
Question 103
Arithmetic

Which sweetener, first used in 1879, has received FDA approval for use in fruit juice beverages?

A
Aspartame
B
Sucralose
C
Saccharin
D
Neotame
Question 104
Arithmetic

Which event marked the pivot moment in the extremist and moderate struggle during the Indian freedom struggle?

A
Jallianwala Bagh Massacre
B
Champaran Satyagraha
C
Surat Split
D
Partition of Bengal
Question 105
Arithmetic

Which of the following best describes the public sector's role in the Indian economy during 1947-1991?

A
Dominant in core and heavy industries
B
Only limited to agriculture
C
Minimal presence
D
Focussed only on foreign trade
Question 106
Arithmetic

According to Ibn Battuta, a Moroccan traveller to India during the Delhi Sultanate, the method of postal system in which the royal horses were used to transfer packages, is called:

A
Dawa
B
Uluq
C
Mansabdari
D
Ikat
Question 107
Arithmetic

How many small states of present-day Odisha were integrated into the Indian Union at the time of Partition?

A
26
B
42
C
34
D
15
Question 108
Arithmetic

Which programme aims to ensure access to safe and adequate drinking water through tap connections by 2024?

A
Jal Jeevan Mission
B
Jal Kranti Abhiyan
C
PM-KUSUM
D
Atal Bhujal Yojana
Question 109
Arithmetic

The distribution of population in India is:

A
uniform across all regions
B
more in desert areas
C
denser in hilly regions
D
uneven, with variations across regions
Question 110
Arithmetic

Which acid is used in non-ionic detergent reactions to improve cleaning qualities and thicken detergents?

A
Stearic acid
B
Barbituric acid
C
Propanoic acid
D
Oxalic acid
Question 111
Arithmetic

In April 2021, which Indian cricketer was named for Wisden Leading Cricketers in the World 2024 who scored 1659 runs across formats in 2024?

A
Harmanpreet Kaur
B
Smriti Mandhana
C
Jemimah Rodrigues
D
Harleen Deol
Question 112
Arithmetic

Which State Government launched India's first ferret research facility in February 2021?

A
Punjab
B
Rajasthan
C
Delhi
D
Haryana
Question 113
Arithmetic

The US Army contingent that participated in Exercise YUDH ABHYAS held in September 2024 belonged to which of the following divisions?

A
82nd Airborne Division
B
11th Airborne Division
C
1st Infantry Division
D
101st Airborne Division
Question 114
Arithmetic

Which state became the leading beneficiary of the Green Revolution in India?

A
Bihar
B
Assam
C
Punjab
D
Odisha
Question 115
Arithmetic

Which of the following elements is classified as an actinoid group element?

A
Thorium
B
Ytterbium
C
Lanthanum
D
Cerium
Question 116
Arithmetic

Which department has notified rules for the use of radar equipment to measure vehicle speed under the Legal Metrology (General) Rules, 2011?

A
Department of Consumer Affairs
B
Ministry of Electronics and Information Technology
C
Ministry of Road Transport and Highways
D
Ministry of Home Affairs
Question 117
Arithmetic

Which of the following is the easternmost range of the Himalayas?

A
Zanskar
B
Purvanchal Range
C
Dhauladhar
D
Pir Panjal
Question 118
Arithmetic

The Bhimbetka rock shelters, known for prehistoric cave paintings, are located in which of the following states of India?

A
Madhya Pradesh
B
Uttar Pradesh
C
Rajasthan
D
Gujarat
Question 119
Arithmetic

Protection of environment and wildlife is mentioned in which Article of the Indian Constitution?

A
Article 48A
B
Article 48
C
Article 47
D
Article 49
Question 120
Arithmetic

Which of the following operating systems is NOT typically used on desktop or laptop computers?

A
Windows
B
Android
C
Linux
D
macOS
Question 121
Arithmetic

A single narrative detailing one of Buddha's former existences is known by which of the following names?

A
Vinaya
B
Jataka
C
Tripitaka
D
Sutra
Question 122
Arithmetic

What legal document allowed Princely States to join either India or Pakistan after independence?

A
Instrument of Accession
B
Standstill Agreement
C
Treaty of Accession
D
Pact of Unity
Question 123
Arithmetic

Which of the following is the Chief Minister of a state in India primarily responsible for?

A
President of India
B
Supreme Court
C
Governor of the State
D
State Legislative Assembly
Question 124
Arithmetic

Which Indian author won the 2021 International Booker Prize for the short story collection 'Heart Lamp'?

A
Jeet Thayil
B
Deepa Bhasthi
C
Banu Mushtaq
D
Pratibha Satpathy
Question 125
Arithmetic

Which of the following quantities remains unchanged when a charged particle moves in a magnetic field?

A
Direction of velocity
B
Kinetic energy
C
Momentum direction
D
Angular momentum