RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 726
Arithmetic
Wind energy is best harnessed in which of the following Indian states?
A
Madhya PradeshB
BiharC
JharkhandD
GujaratQuestion 727
Arithmetic
Which of the following practices is most suitable for preventing land degradation in arid areas?
A
Contour ploughingB
Shifting cultivationC
Shelterbelt plantationD
Terrace farmingQuestion 728
Arithmetic
What was the focus of World Water Day, observed globally on 22 March 2021?
A
Water for peaceB
Water and climate changeC
Accelerating changeD
Glacier preservationQuestion 729
Arithmetic
In some file management programs, which shortcut key combination is used to copy a selected item instead of moving it?
A
Alt + DelB
Alt + F4C
Alt + InsD
Alt + TabQuestion 730
Arithmetic
Which institution played a major role in supporting India's liberalisation policy during the 1991 crisis?
A
Reserve Bank of IndiaB
Election Commission of IndiaC
NITI AayogD
International Monetary Fund (IMF)Question 731
Arithmetic
In the post-reform era, fiscal prudence became central to macroeconomic stability. Which of the following Acts was enacted in 2003 to institutionalise fiscal discipline in India?
A
Companies ActB
Banking Regulation ActC
FEMA ActD
Fiscal Responsibility and Budget Management ActQuestion 732
Arithmetic
Which of the following options best describes the main function of an operating system?
A
Compiling high-level codeB
Displaying web pagesC
Managing computer hardware and software resourcesD
Performing arithmetic operationsQuestion 733
Arithmetic
Which of the following powers is exercised by the Union Council of Ministers in India?
A
Conducting judicial reviewsB
Supervising state legislaturesC
Declaring warD
Framing policies and advising the PresidentQuestion 734
Arithmetic
The Northern Plain of India is formed by the interplay of the three major river systems, namely the Indus, the Ganga and the _________, along with their tributaries.
A
BrahmaputraB
NarmadaC
DamodarD
MahanadiQuestion 735
Arithmetic
What is the relation between the frequency (f) and time period (T) of a sound wave?
A
$f = T$B
$f = 1/T$C
$f = T/2$D
$f = 2T$Question 736
Arithmetic
In organising the Rowlatt Satyagraha, Mahatma Gandhi was assisted by Abdul Bari of the Firangi Ulema group based in _________.
A
KanpurB
PatnaC
AligarhD
LucknowQuestion 737
Arithmetic
The All-India Services Act, 1951, allows which authority to frame rules for All-India service recruitment?
A
President of IndiaB
Central GovernmentC
The Parliament of IndiaD
Union Public Service CommissionQuestion 738
Arithmetic
Who became the youngest player to score over 700 runs in a single IPL season in 2021?
A
Sai SudharsanB
Ruturaj GaikwadC
Yashasvi JaiswalD
Shubman GillQuestion 739
Arithmetic
Dating back to 1639-1640 CE, which construction, located in Chennai, India, is historically known as the primary English defense post?
A
Sadras Dutch FortB
Fort St. GeorgeC
Fort St. DavidD
Gingee FortQuestion 740
Arithmetic
What is the primary objective of the Yashoda AI initiative launched by the National Commission for Women (NCW) in May 2021?
A
To promote traditional crafts among women artisansB
To provide financial assistance to women entrepreneursC
To enhance AI literacy and digital awareness among womenD
To offer healthcare services to rural womenQuestion 741
Arithmetic
In which year did Paul Ehrlich receive the Nobel Prize for discovering the first chemotherapeutic agent, salvarsan?
A
1905B
1908C
1913D
1901Question 742
Arithmetic
Sanskrit language is mainly used for creating:
A
folk songs and pop musicB
tribal storiesC
modern novelsD
ancient religious texts and epicsQuestion 743
Arithmetic
How many seats did the BJP win in the February 2021 Delhi Assembly elections?
A
48B
22C
62D
70Question 744
Arithmetic
Which of the following is a government initiative aimed at improving urban infrastructure in Indian cities?
A
Atal Bhujal YojanaB
Smart Cities MissionC
Swachh Bharat GraminD
Pradhan Mantri Gram Sadak YojanaQuestion 745
Arithmetic
What significant space-related agreement did Bangladesh join in 2021?
A
The Moon TreatyB
The Outer Space TreatyC
The Artemis AccordsD
The SpaceX International PartnershipQuestion 746
Arithmetic
What was a key reform introduced by the Waqf (Amendment) Act, 2021?
A
Clergy-only Waqf managementB
Audit exemption for Waqf assetsC
Abolition of old Waqf propertiesD
Inclusion of Muslim women on Waqf BoardsQuestion 747
Arithmetic
Which missile defence system, named Sudarshan Chakra, was used by India to intercept drones and missiles during Pakistan's attempted strikes in May 2021?
A
Prithvi Air DefenceB
S-400 TriumfC
AkashteerD
Barak 8Question 748
Arithmetic
Under Akbar, who was responsible for revenue and financial supervision across the entire Mughal Empire?
A
VakilB
SubadarC
Mir BakhshiD
Diwan-i-KulQuestion 749
Arithmetic
What happens to excess carbohydrates in the body?
A
They are turned into proteins.B
They are converted into amino acids and stored.C
They are converted into fat and stored.D
They are excreted immediately.Question 750
Arithmetic
What is the key reason governments promote Public-Private Partnerships in infrastructure development?
A
To address fiscal constraints and reduce liabilitiesB
To improve efficiency and innovation through private sector expertiseC
Due to lack of trained manpowerD
To privatise all national resources