Library Science MCQ for Bihar Librarian: 40 Important LET Questions
40 solved LET-level library science MCQs for the Bihar School Librarian exam — Ranganathan's laws, DDC, Colon Classification, cataloguing and ICT — with answers, short explanations and a free mock test.
Library science MCQ for Bihar Librarian: start your revision here
If you have only a few weeks left and a job or family duties pulling at your time, these library science mcq for bihar librarian are the smartest way to revise. This post gives you 40 solved LET-level questions with one-line explanations — Ranganathan's laws, DDC, Colon Classification, cataloguing and library ICT — so you can check what you already know today and fix your weak topics before the exam. Start with the free mock test once you finish.
These 40 questions are set at the level the Bihar School Librarian LET 2026 usually asks. Read the question, pick your option, then look at the answer and the short reason. For full-length practice with timers and solutions, the Bihar Librarian LET 2026 Mock Test Series covers every topic.
What is the exam pattern for Bihar School Librarian LET 2026?
The Librarian Eligibility Test (LET) is conducted by the Bihar School Examination Board (BSEB) as a computer-based test (CBT). It is a qualifying eligibility test — you need a Bachelor's degree in Library Science from a recognised university to apply.
As per the official notification, the paper carries multiple-choice questions and there is a fixed total mark and duration. Dates, fees and the qualifying percentage can change, so always confirm them on the official BSEB notification yourself before you plan your attempt.
| Detail to confirm | Source |
|---|---|
| Exam date and shift | Official BSEB notification |
| Number of questions and total marks | Official BSEB notification |
| Eligibility degree and minimum percentage | Official BSEB notification |
| Application fee | Official BSEB notification |
| Qualifying percentage | Official BSEB notification |
What this means for you: do not plan your preparation around numbers you read on coaching pages. Open the notification once, note the real figures, and then focus all your energy on practice.
40 library science questions with answers for LET revision
Try to answer before you read the solution. Note every question you miss — that list is your personal revision plan.
- Who is regarded as the Father of Library Science in India?
- A) Melvil Dewey
- B) S.R. Ranganathan
- C) Paul Otlet
- D) C.A. Cutter
Answer: B) S.R. Ranganathan. He gave the Five Laws of Library Science and Colon Classification.
- The Five Laws of Library Science were published in which year?
- A) 1925
- B) 1931
- C) 1940
- D) 1949
Answer: B) 1931. Ranganathan stated them in his book The Five Laws of Library Science.
- Which is the First Law of Library Science?
- A) Books are for use
- B) Every reader his book
- C) Save the time of the reader
- D) A library is a growing organism
Answer: A) Books are for use. It supports open access and a convenient library location.
- Which is the Fifth Law of Library Science?
- A) Every book its reader
- B) A library is a growing organism
- C) Books are for all
- D) Save the time of the staff
Answer: B) A library is a growing organism. It reminds us a library keeps growing in books, readers and staff.
- Colon Classification was developed by:
- A) Melvil Dewey
- B) C.A. Cutter
- C) S.R. Ranganathan
- D) Henry Bliss
Answer: C) S.R. Ranganathan. It is a faceted (analytico-synthetic) scheme.
- The Dewey Decimal Classification (DDC) was devised by:
- A) Melvil Dewey
- B) Paul Otlet
- C) S.R. Ranganathan
- D) Charles Cutter
Answer: A) Melvil Dewey. First published in 1876, it uses pure decimal numbers.
- In DDC, the class number 000 stands for:
- A) Philosophy
- B) Religion
- C) Generalities / Computer science and information
- D) Language
Answer: C) Generalities / Computer science and information. It is the first main class in DDC.
- PMEST, the five fundamental categories, stands for:
- A) Place, Material, Energy, Space, Time
- B) Personality, Matter, Energy, Space, Time
- C) Personality, Matter, Entity, Subject, Time
- D) Part, Matter, Energy, Space, Theme
Answer: B) Personality, Matter, Energy, Space, Time. These drive Colon Classification's facet analysis.
- AACR stands for:
- A) Advanced Automated Cataloguing Records
- B) Anglo-American Cataloguing Rules
- C) All-American Catalogue Reference
- D) Author and Author Classified Records
Answer: B) Anglo-American Cataloguing Rules. It is a standard code for descriptive cataloguing.
- MARC stands for:
- A) Machine Readable Cataloguing
- B) Main Author Record Code
- C) Manual Reference Catalogue
- D) Multiple Access Record Catalogue
Answer: A) Machine Readable Cataloguing. It is a standard format for exchanging bibliographic data.
- How many digits does the current ISBN have?
- A) 8
- B) 10
- C) 13
- D) 15
Answer: C) 13. ISBN moved from 10 to 13 digits in 2007.
- ISSN is used to identify:
- A) Books
- B) Serial publications / periodicals
- C) Maps
- D) Patents
Answer: B) Serial publications / periodicals. ISSN has 8 digits for serials.
- The Universal Decimal Classification (UDC) is based on:
- A) Colon Classification
- B) Library of Congress Classification
- C) Dewey Decimal Classification
- D) Bliss Classification
Answer: C) Dewey Decimal Classification. UDC was developed by Otlet and La Fontaine from DDC.
- OPAC stands for:
- A) Online Public Access Catalogue
- B) Open Public Area Catalogue
- C) Official Published Access Code
- D) Online Private Access Catalogue
Answer: A) Online Public Access Catalogue. It lets users search a library's holdings online.
- SDI stands for:
- A) Selective Dissemination of Information
- B) Standard Documentation Index
- C) Subject Data Indexing
- D) Serial Document Information
Answer: A) Selective Dissemination of Information. It sends users information matching their interest profile.
- The concept of SDI was introduced by:
- A) S.R. Ranganathan
- B) H.P. Luhn
- C) Melvil Dewey
- D) Eugene Garfield
Answer: B) H.P. Luhn. He proposed SDI in 1958.
- CAS stands for:
- A) Current Awareness Service
- B) Cataloguing and Acquisition System
- C) Classified Access Service
- D) Central Archive Service
Answer: A) Current Awareness Service. It keeps users updated with the latest documents.
- Chain indexing was devised by:
- A) C.A. Cutter
- B) S.R. Ranganathan
- C) Derek Austin
- D) J. Kaiser
Answer: B) S.R. Ranganathan. It derives subject index entries from the class number.
- The SOUL library software was developed by:
- A) UNESCO
- B) INFLIBNET
- C) NISCAIR
- D) DELNET
Answer: B) INFLIBNET. SOUL means Software for University Libraries.
- INFLIBNET Centre is located at:
- A) New Delhi
- B) Kolkata
- C) Gandhinagar, Gujarat
- D) Bengaluru
Answer: C) Gandhinagar, Gujarat. It is an inter-university centre of the UGC.
- Koha is an example of:
- A) A database
- B) An open-source integrated library management system
- C) A search engine
- D) A classification scheme
Answer: B) An open-source integrated library management system. It is free, web-based library software.
- How many elements does the Dublin Core metadata set have?
- A) 10
- B) 12
- C) 15
- D) 20
Answer: C) 15. The basic Dublin Core has 15 elements like Title, Creator and Subject.
- Metadata means:
- A) Large data
- B) Data about data
- C) Deleted data
- D) Digital data only
Answer: B) Data about data. It describes a resource so it can be found and managed.
- DOI stands for:
- A) Digital Object Identifier
- B) Document Online Index
- C) Data Object Indexing
- D) Digital Online Information
Answer: A) Digital Object Identifier. It gives a permanent link to a digital document.
- In a dictionary catalogue, entries are arranged:
- A) By class number
- B) Alphabetically in one sequence
- C) By accession number
- D) By size
Answer: B) Alphabetically in one sequence. Author, title and subject entries interfile in a single A–Z order.
- A thesaurus in a library is mainly used for:
- A) Book binding
- B) Vocabulary control in indexing
- C) Shelf arrangement
- D) Stock verification
Answer: B) Vocabulary control in indexing. It links preferred terms, broader, narrower and related terms.
- The Expansive Classification was devised by:
- A) Henry Bliss
- B) Charles Ammi Cutter
- C) James Brown
- D) Melvil Dewey
Answer: B) Charles Ammi Cutter. It influenced the Library of Congress Classification.
- "Rules for a Dictionary Catalog" was written by:
- A) S.R. Ranganathan
- B) C.A. Cutter
- C) Melvil Dewey
- D) Seymour Lubetzky
Answer: B) C.A. Cutter. It set early principles of catalogue making.
- IFLA stands for:
- A) Indian Federation of Library Associations
- B) International Federation of Library Associations and Institutions
- C) International Forum of Library Archives
- D) Institute for Library Analysis
Answer: B) International Federation of Library Associations and Institutions. It is the global body for library associations.
- The Indian Library Association (ILA) was established in:
- A) 1920
- B) 1933
- C) 1947
- D) 1955
Answer: B) 1933. It was founded at Calcutta during the first All India Library Conference.
- IASLIC has its headquarters at:
- A) New Delhi
- B) Mumbai
- C) Kolkata
- D) Chennai
Answer: C) Kolkata. IASLIC serves special and scientific libraries.
- An encyclopaedia is an example of which kind of source?
- A) Primary source
- B) Secondary (reference) source
- C) Tertiary source
- D) Non-documentary source
Answer: B) Secondary (reference) source. It organises known information for quick reference.
- "Who's Who" is an example of a:
- A) Geographical source
- B) Biographical reference source
- C) Statistical source
- D) Bibliographical source
Answer: B) Biographical reference source. It gives short facts about notable people.
- CDS/ISIS software was developed by:
- A) UNESCO
- B) INFLIBNET
- C) DELNET
- D) Microsoft
Answer: A) UNESCO. It is free software for creating bibliographic databases.
- DSpace digital repository software was developed by:
- A) MIT and HP
- B) University of Waikato
- C) INFLIBNET
- D) Google
Answer: A) MIT and HP. It is widely used to build institutional repositories.
- The term "Documentation" was coined by:
- A) S.R. Ranganathan
- B) Paul Otlet
- C) Melvil Dewey
- D) Vannevar Bush
Answer: B) Paul Otlet. He is called the father of documentation and information science.
- POPSI (Postulate-based Permuted Subject Indexing) was developed by:
- A) Derek Austin
- B) G. Bhattacharyya
- C) J. Kaiser
- D) Timothy Craven
Answer: B) G. Bhattacharyya. It is based on Ranganathan's postulational approach.
- The Library of Congress Classification (LCC) uses which type of notation?
- A) Pure numbers
- B) Pure letters
- C) Mixed (letters and numbers)
- D) Only symbols
Answer: C) Mixed (letters and numbers). It combines capital letters with Arabic numerals.
- Modern reference service is said to have been pioneered by:
- A) Samuel Swett Green
- B) Melvil Dewey
- C) S.R. Ranganathan
- D) C.A. Cutter
Answer: A) Samuel Swett Green. He wrote on personal relations between librarians and readers in 1876.
- ALA stands for:
- A) All Library Authority
- B) American Library Association
- C) Academic Library Agency
- D) Asian Library Alliance
Answer: B) American Library Association. Founded in 1876, it is one of the oldest library bodies.
Count your score. If you missed more than ten, those topics are where your next week of study should go.
How to practise library science MCQs when time is short
Reading questions once is not enough. Solve them against a clock, then revisit your mistakes after two days — that is how facts stay in memory.
Three common struggles, with one doable step for each:
- You forget Ranganathan's laws and the PMEST categories. Write the Five Laws and PMEST on one card and read it before every practice set.
- You mix up DDC, UDC and Colon Classification. Make a three-row table — who made each and its notation — and revise only that table daily.
- You run out of time in the real CBT. Take at least one full timed mock every week so speed becomes a habit, not a surprise.
When you are ready for full papers, the Bihar Librarian LET 2026 Mock Test Series gives you topic tests and full mocks with solutions in Hindi and English. For an easy warm-up first, see Bihar Librarian LET mock test practice online, and for extra MCQ drill across Bihar exams try the Bihar STET Political Science MCQs.
Your one step for today
Do not just read this page — test yourself now. Start with the free mock test, mark the topics you got wrong, and revise only those tonight. When you want the full set, the Bihar Librarian LET 2026 Mock Test Series is ready whenever you are.
Frequently asked questions
Is library science the main subject in the Bihar School Librarian LET 2026?
Yes. A Bachelor's degree in Library Science is the eligibility, and the LET paper is built around library science. For the exact subject and mark split, follow the official BSEB notification.
How many questions are asked in the Bihar Librarian LET?
The exact number of questions and total marks are given only in the official BSEB notification, so confirm them there before you plan your attempt.
Which topics should I focus on for Bihar Librarian library science?
Ranganathan's Five Laws and PMEST, DDC, Colon Classification and UDC, cataloguing (AACR, MARC), reference sources, indexing and library ICT repeat most often. Pair reading with daily MCQ practice.
Is the Bihar Librarian LET exam in Hindi or English?
On SeatBeat the mock tests and solutions are available in both Hindi and English. For the medium of the actual paper, rely on the official notification.
How can I practise library science MCQs for free?
Start with the free Cataloguing topic test in the Bihar Librarian LET 2026 Mock Test Series, then move on to full-length mocks to build speed and accuracy.