RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 951
Arithmetic
Which of the following is the function of the Central Processing Unit (CPU) in a computer?
A
It receives input from the keyboard and mouse only.B
It stores all user files permanently.C
It processes data and controls operations of all parts of the computer.D
It sends output to printers and monitors.Question 952
Arithmetic
What is the condition for total internal reflection to occur?
A
Light must travel from a rarer medium to a denser medium at an angle of 90°.B
Light must travel from a denser to a rarer medium at an angle greater than the critical angle.C
Light must strike the boundary at 90° to the normal separating any two mediums of different refractive indices.D
The refractive indices of both media must be equal.Question 953
Arithmetic
What is 'Google Beam' introduced under Project Starline?
A
A language translation tool for real-time communicationB
An AI-powered video communication platform aiming to redefine virtual interactionsC
A new satellite launched by Google for global internet coverageD
A hardware device for enhancing internet speed in rural areasQuestion 954
Arithmetic
What was the main objective of India's First Five Year Plan (1951–56)?
A
Growth of IT servicesB
Privatisation of PSUsC
Heavy industrialisationD
Agricultural developmentQuestion 955
Arithmetic
Who was honoured with the Padma Bhushan in 2021 for their contributions to Indian cinema?
A
Aamir KhanB
Shekhar KapurC
Mukesh KhannaD
Subhash GhaiQuestion 956
Arithmetic
Why is wheat grown in the north-western plains of India?
A
Because it lies close to the coastal water bodiesB
Because it receives heavy rainfall during the monsoonC
Because the region has fertile alluvial soil and cool wintersD
Because the region has red soil with limited annual rainfallQuestion 957
Arithmetic
Which of the following elements provides access to system settings, installed programs, and power options from the desktop?
A
TaskbarB
File ExplorerC
Start MenuD
Notification AreaQuestion 958
Arithmetic
What did the Supreme Court decide in the Kesavananda Bharati case (1973) about the powers of Parliament to amend the Constitution of India?
A
The President of India has the ultimate authority to approve or reject constitutional amendments independently.B
The Parliament cannot amend any part of the Constitution under any circumstances.C
The Parliament can amend the Constitution, but it cannot change or destroy its basic structure or essential features.D
The Parliament has unlimited power to amend any part of the Constitution, including the Fundamental Rights.Question 959
Arithmetic
In which of the following cases did the Supreme Court uphold the Right to Privacy as a Fundamental Right in 2017?
A
Shreya Singhal vs. Union of IndiaB
Indira Sawhney vs. Union of IndiaC
Puttaswamy vs. Union of IndiaD
Navtej Singh Johar vs. Union of IndiaQuestion 960
Arithmetic
Which mode of transport is most suitable for transporting heavy and bulky goods over long distances?
A
RailwaysB
PipelinesC
RoadwaysD
AirwaysQuestion 961
Arithmetic
Which of the following best defines impulse in mechanics?
A
The product of mass and velocityB
The product of force and the time for which it actsC
The rate of change of momentum multiplied by the distanceD
The change in displacement over timeQuestion 962
Arithmetic
What was the other name of Chandragupta II, the renowned ruler of the Gupta dynasty?
A
DhruvasenaB
SuryadevaC
KarmaputraD
VikramadityaQuestion 963
Arithmetic
Which of the following statements regarding the Ryotwari settlement is correct? It was developed by Thomas Munro. The settlement was made directly with the cultivators, not zamindars. It was tested on a small scale in the annexed territories of Tipu. Finding it successful, it was then applied in the Ganga plains. Select the correct combination:
A
1 and 2 onlyB
1 onlyC
1, 2 and 3 onlyD
1, 2, 3 and 4Question 964
Arithmetic
Amir Khusrau is known for contributing to which two languages?
A
Sanskrit and TamilB
Bengali and PunjabiC
Marathi and GujaratiD
Persian and HindaviQuestion 965
Arithmetic
According to the Waqf (Amendment) Bill, 2021, within how many days can an appeal be made in the High Court on the order of the Waqf Tribunal?
A
120 daysB
70 daysC
90 daysD
50 daysQuestion 966
Arithmetic
Which of the following players was named the Men's Player of the Year at the All India Football Federation (AIFF) Awards in May 2021?
A
Gurpreet Singh SandhuB
Subhasish BoseC
Sandesh JhinganD
Sunil ChhetriQuestion 967
Arithmetic
Jhumur, a traditional folk dance, originated in which of the following Indian states?
A
AssamB
PunjabC
KeralaD
GujaratQuestion 968
Arithmetic
The Human Development Index emphasises people-centric development. Who is credited with creating the HDI alongside Amartya Sen?
A
Manmohan SinghB
Jean DrèzeC
Kaushik BasuD
Mahbub ul HaqQuestion 969
Arithmetic
Which of the following Committees is a Standing Committee of the Parliament?
A
Delimitation CommissionB
Joint Parliamentary Committee on 2G SpectrumC
Select Committee on a BillD
Public Accounts CommitteeQuestion 970
Arithmetic
Which of the following institutes proposed development of world's smallest semiconductors chip in 2021?
A
Indian Institute of ScienceB
IIT DelhiC
DRDO Research LabD
BARCQuestion 971
Arithmetic
Which constitutional Articles ensure the writ jurisdiction of the Supreme Court and High Courts for enforcing fundamental rights, including RTI?
A
Articles 51 and 356B
Articles 14 and 15C
Articles 21 and 39D
Articles 32 and 226Question 972
Arithmetic
How many Khelo India centres did the Delhi government propose to establish in June 2021?
A
SixB
EightC
TwoD
TenQuestion 973
Arithmetic
The introduction of English education in India was promoted through which of the following documents?
A
Charter Act of 1813B
Regulating ActC
Macaulay's MinuteD
Pitts India ActQuestion 974
Arithmetic
Which of the following was NOT a reason for the Paleolithic people to move from place to place?
A
Failure of cropsB
Resource exhaustionC
Movement of prey animalsD
Seasonal changesQuestion 975
Arithmetic
Littoral forests are most associated with which kind of ecosystem?
A
Wetland ecosystemB
Tundra ecosystemC
Grassland ecosystemD
Desert ecosystem