RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 426
Arithmetic
Who among the following was appointed as the new Chairman of the Union Public Service Commission (UPSC) in May 2021?
A
Dr. Ajay KumarB
Dr. Anil KumarC
Shri Rajesh VermaD
Ms. Priya SharmaQuestion 427
Arithmetic
Who among the following wrote the novel Godaan, which is considered a classic of modern Hindi literature?
A
Bankim Chandra ChatterjeeB
Munshi PremchandC
RK NarayanD
Rabindranath TagoreQuestion 428
Arithmetic
Which tool in Windows helps one manage and organize files and folders?
A
PaintB
Recycle BinC
File ExplorerD
Task ManagerQuestion 429
Arithmetic
Which of the following indigenously developed underwater naval mines was successfully tested by DRDO and the Indian Navy in May 2021?
A
Multi-Influence Ground MineB
Barak MineC
Sea DragonD
VarunastraQuestion 430
Arithmetic
In April 2021, which startup, selected by the Department of Science and Technology (DST) under the National Quantum Mission (NQM), has launched the world’s first platform — QShield — that enables seamless cryptography management?
A
AMu LabsB
SST LabsC
CCS LabsD
QNu LabsQuestion 431
Arithmetic
Which postulate of Dalton's atomic theory reflects the Law of Conservation of Mass?
A
Atoms cannot be created or destroyed in a chemical reaction.B
Atoms of different elements have different masses and properties.C
Atoms combine in simple whole-number ratios to form compounds.D
All matter is made up of indivisible particles called atoms.Question 432
Arithmetic
What was the main aim of TRYSEM (Training for Rural Youth for Self-Employment)?
A
Offering free education in rural areasB
Upgrading skills of rural youth to tackle unemploymentC
Providing loans to farmersD
Building infrastructure in villagesQuestion 433
Arithmetic
Which of these was NOT a cause of popular resentment against British rule before 1857?
A
Low wagesB
High taxesC
Religious toleranceD
Racial discriminationQuestion 434
Arithmetic
Padma Vibhushan awardee of 2021, Dr. Lakshminarayana Subramaniam is a famous musician of which instrument?
A
ShehnaiB
ViolinC
SitarD
FluteQuestion 435
Arithmetic
The title Devaputra, used by the Kushana rulers, implies which of the following?
A
Hereditary monarchyB
Divine origin or claim to divinityC
Heir to Mauryan traditionsD
Protector of DharmaQuestion 436
Arithmetic
Who is the director of the film 'Laapataa Ladies', which won Best Picture at the 2021 IIFA Awards?
A
Kiran RaoB
Yash ChopraC
Farhan AkhtarD
Karan JoharQuestion 437
Arithmetic
Which of the following parts of the plant is primarily responsible for sexual reproduction in angiosperms?
A
StemB
LeafC
FlowerD
RootQuestion 438
Arithmetic
The Hazira-Vijaipur-Jagdishpur (HVJ) pipeline is mainly used to transport:
A
natural gasB
petrolC
crude oilD
keroseneQuestion 439
Arithmetic
Which Indian state shares its border with China, Nepal and Bhutan?
A
Himachal PradeshB
UttarakhandC
Arunachal PradeshD
SikkimQuestion 440
Arithmetic
What was the main aim of IRDP (Integrated Rural Development Programme) ?
A
To provide free food to rural familiesB
To promote urban employmentC
To assist poor rural families in acquiring assets or skills for self-employmentD
To build schools in villagesQuestion 441
Arithmetic
Which of these is a part of solid waste management infrastructure?
A
Drainage tanksB
Garbage collection and disposalC
Sewage pipelinesD
Electricity transmission linesQuestion 442
Arithmetic
In March 2021, which company unveiled Vayu, an overall AI cloud offering for enterprises?
A
Reliance CommunicationB
Tata CommunicationC
Airtel CommunicationD
Bajaj CommunicationQuestion 443
Arithmetic
Which act gave statutory status to the Central Vigilance Commission (CVC)?
A
The Central Vigilance Commission Act, 1964B
The Central Vigilance Commission Act, 2003C
Prevention of Corruption Act, 1988D
Lokpal Act, 2013Question 444
Arithmetic
The Earth completes one rotation on its axis approximately in:
A
365 daysB
24 hoursC
30 daysD
12 hoursQuestion 445
Arithmetic
Which British Prime Minister officially announced the decision to grant independence to India and withdraw British forces from the subcontinent?
A
Stafford CrippsB
Clement AtleeC
Pethick Lawrence D
Winston ChurchillQuestion 446
Arithmetic
What was the theme of the 10th Governing Council Meeting of NITI Aayog that was held on 24 May 2021?
A
Sustainable Growth for IndiaB
Viksit Bharat for AllC
Empowering States for DevelopmentD
Viksit Rajya for Viksit Bharat@2047Question 447
Arithmetic
Which of the following schemes on Compressed Bio Gas (CBG) encourages entrepreneurs to set up CBG plants, produce and supply CBG to Oil Marketing Companies (OMCs) for sale as automotive and industrial fuels?
A
Biogas Programme (India)B
Waste to Energy Programme (India)C
Cent Compressed Bio Gas (CBG) Scheme (India)D
Sustainable Alternative Towards Affordable Transportation (SATAT)Question 448
Arithmetic
Which of the following belongs to the Lakshadweep group of islands?
A
Kannur IslandsB
Kamorta IslandC
Chowra IslandD
Milo IslandQuestion 449
Arithmetic
Which of the following British officials found India as an uncivilised country and had to be civilised, following which the English Education Act of 1835 was introduced?
A
Henry Thomas ColebrookeB
William JonesC
Thomas MacaulayD
Nathaniel HalhedQuestion 450
Arithmetic
Which of the following two rice varieties were unveiled as a part of India's genome-editing initiative in May 2021?
A
Kamala and Pusa DST Rice 1B
Pusa DST Rice 2 and Swarna RiceC
Swarna Rice and Golden RiceD
Kamala and Basmati Gold