RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 1601
Arithmetic
Which of the following practices promotes sustainable agriculture?
A
MonocroppingB
Crop rotation and organic farmingC
Slash and burn cultivationD
Use of chemical pesticidesQuestion 1602
Arithmetic
The office of Governor-General was renamed after 1858 as ______
A
Secretary of StateB
Viceroy of IndiaC
Chief AdministratorD
Prime MinisterQuestion 1603
Arithmetic
The Idukki Disaster Resilience and Information System (IDRIS), India's first integrated early warning and planning platform using AI and real-time data, was launched in which Indian state?
A
KarnatakaB
KeralaC
Tamil NaduD
Himachal PradeshQuestion 1604
Arithmetic
Which amendment granted constitutional status to Panchayati Raj institutions?
A
Seventy-fourth Amendment Act, 1992B
Eighty-sixth Amendment Act, 2002C
Seventy-third Amendment Act, 1992D
Seventy-second Amendment Act, 1992Question 1605
Arithmetic
India's first prototype fast-breeder reactor to be commissioned by September 2026, is located at which of the following places?
A
KalpakkamB
TarapurC
BhavnagarD
JadugudaQuestion 1606
Arithmetic
Which of the following was a major fiscal reform introduced in India as part of the 1991 economic reforms?
A
Introduction of GSTB
Introduction of the Modified Value Added TaxC
Abolition of wealth taxD
Implementation of the FRBM ActQuestion 1607
Arithmetic
Which of the following commissions was appointed to look into the question of states based on language?
A
Gadgil CommissionB
Sarkaria CommissionC
Swaran Singh CommitteeD
Dhar CommissionQuestion 1608
Arithmetic
Which of the following is a compound?
A
OxygenB
IronC
WaterD
SulphurQuestion 1609
Arithmetic
Which missile was successfully flight-trialed by DRDO and the Indian Navy from Integrated Test Range, Chandipur, Odisha, in 2021, demonstrating capability against ship targets when launched from a Sea King helicopter?
A
BrahMos Anti-Ship MissileB
Naval Anti-Ship Missile - Short RangeC
Prithvi Surface-to-Surface MissileD
Agni Ballistic MissileQuestion 1610
Arithmetic
Which major reform was aimed at redistributing land to the landless after independence?
A
Land Ceiling ActsB
Crop Insurance SchemeC
Green RevolutionD
Agricultural Export PolicyQuestion 1611
Arithmetic
Which island group lies to the south-east of the Indian mainland?
A
Agatti islandB
MinicoyC
Andaman and NicobarD
LakshadweepQuestion 1612
Arithmetic
Akashteer, which is India's fully indigenous, automated Air Defence Control and Reporting System, that played a vital role during conflict with Pakistan in May 2021, was developed by which of the following organisations?
A
Defence Research and Development Organisation (DRDO)B
Hindustan Aeronautics Limited (HAL)C
Bharat Electronics Limited (BEL)D
Bharat Dynamics LtdQuestion 1613
Arithmetic
Which of the following crops is grown in waterlogged conditions?
A
MaizeB
BajraC
GroundnutD
RiceQuestion 1614
Arithmetic
The Production Linked Incentive (PLI) scheme is aimed at boosting manufacturing. Which of the following sectors is NOT covered under the PLI scheme?
A
PharmaceuticalsB
AutomobilesC
TourismD
ElectronicsQuestion 1615
Arithmetic
What was the main objective of the Pitt's India Act of 1784, passed by the British Parliament?
A
Empower provincial councilsB
Trade monopolyC
Abolish company ruleD
Establish dual governmentQuestion 1616
Arithmetic
In 2021, on which date was the International Day for Biological Diversity observed globally?
A
5 JuneB
5 MayC
22 MayD
15 MayQuestion 1617
Arithmetic
Rural electrification has been a longstanding priority to support livelihoods and education in villages. Which scheme aimed to achieve 100% household electrification in rural India?
A
Ujjwala YojanaB
Pradhan Mantri Gram Sadak YojanaC
Saubhagya YojanaD
Swabhimaan SchemeQuestion 1618
Arithmetic
Which of the following companies has launched a commercial space surveillance satellite named SCOT in March 2021?
A
Tata Advanced SystemsB
DigantaraC
Hindustan Aeronautics LimitedD
Mahindra AerospaceQuestion 1619
Arithmetic
Who was assigned the portfolio of Health & Family Welfare, Transport, and Information Technology in the new Delhi cabinet formed in February 2021?
A
Ashish SoodB
Ravinder Indraj SinghC
Pankaj Kumar SinghD
Manjinder Singh SirsaQuestion 1620
Arithmetic
Which government-owned organisation is primarily responsible for electricity transmission in India?
A
National Thermal Power Corporation LimitedB
Central Electricity AuthorityC
Bharat Heavy Electricals LimitedD
Power Grid Corporation of India LimitedQuestion 1621
Arithmetic
After deleting a file from a folder, a user realises that it was an important file. Which of the following steps should they follow to restore it?
A
Press Ctrl + Z repeatedly until it reappearsB
Restart the computer and the file will returnC
Open Recycle Bin $\rightarrow$ Right-click the file $\rightarrow$ Click RestoreD
Use Alt + Tab to recover the fileQuestion 1622
Arithmetic
Which of the following organisations successfully conducted the first flight trial of a stratospheric airship platform at Sheopur, Madhya Pradesh, to enhance military surveillance capabilities?
A
Bharat Electronics Limited (BEL)B
Hindustan Aeronautics Limited (HAL)C
Defence Research and Development Organisation (DRDO)D
Indian Space Research Organisation (ISRO)Question 1623
Arithmetic
The Northern Plains of India are primarily formed by the deposits of which rivers?
A
Narmada and TaptiB
Ganga, Indus and BrahmaputraC
Yamuna and ChambalD
Krishna and GodavariQuestion 1624
Arithmetic
The Desert National Park of Rajasthan is located in which districts of the state?
A
Phalodi and JodhpurB
Jaisalmer and BarmerC
Udaipur and RajsamandD
Dholpur and BharatpurQuestion 1625
Arithmetic
Which of the following is true for Read-Only Memory (ROM)?
A
It is volatile memory that stores data temporarily.B
It processes the logic operations.C
It stores data that can be modified by the user.D
It stores the booting instructions permanently.