BPSC Prelims (Combined Competitive Exam)
67th BPSC Prelims 2022: Previous-Year Questions
145 questions from this paper, sorted by subject, with their options. Each one opens to its answer and explanation.
The same sitting: 67th BPSC Prelims Re-exam 2022
Modern History 20 questions
The Ryotwari system was first implemented in –
- AGujarat
- BMadras
- CBombay
- DOdisha
- ENone of the above/More than one of the above
The Uprising of 1857 was described as the 'First Indian War of Independence'?
- AV.D. Savarkar
- BBal Gangadhar Tilak
- CR. C. Mazumdar
- DDadabhai Naoroji
- ENone of the above/More than one of the above
Which rebellion is mentioned in Bankim Chandra Chatterjee's 'Anand Math'?
- ASannyasi
- BKuka
- CSanthal
- DNeel
- ENone of the above
Who founded the Servants of India Society in 1905?
- ASurendranath Banerjee
- BBipin Chandra Pal
- CMahadev Govind Ranade
- DGopal Krishna Gokhale
- ENone of the above
Who established Indian Association in 1876?
- ASurendra Nath Banerjee
- BChittaranjan Das
- CW. C. Banerjee
- DAurobindo Ghosh
- ENone of the above/More than one of the above
The first woman President of the Indian National Congress was
- ASarojini Naidu
- BAnnie Besant
- CKasturba Gandhi
- DAruna Asaf Ali
- ENone of the above/More than one of the above
The Chittagong Armoury Raid had been planned by:
- ASurya Sen
- BChandan Dutta
- CVidhan Ghosh
- DJatin Das
- ENone of the above/More than one of the above
Who is related to the 'Chittagong Armoury Raid'?
- ARashbehari Bose
- BChandrasekhar Azad
- CBatukeshwar Dutt
- DSurya Sen
- ENone of the above
Where was the Ghadar Party established?
- AGermany
- BUnited States of America
- CFrance
- DEngland
- ENone of the above / More than one of the above
Who invited Gandhiji to come to Champaran?
- ARajkumar Shukla
- BRajendra Prasad
- CJayaprakash Narayan
- DKrishna Sahai
- ENone of the above/More than one of the above
Who is not related to the Champaran Satyagraha of 1917?
- AJ. B. Kripalani
- BRajkumar Shukla
- CRajendra Prasad
- DRam Manohar Lohia
- ENone of the above/More than one of the above
Who was the president of the Indian National Congress session held in Lahore in the year 1929?
- AVallabhbhai Patel
- BMotilal Nehru
- CJawaharlal Nehru
- DRajendra Prasad
- ENone of the above
Who participated in all three Round Table Conferences?
- AMaulana Abul Kalam Azad
- BMadan Mohan Malaviya
- CB.R. Ambedkar
- DMahatma Gandhi
- ENone of the above
In which country was the honorific 'Netaji' added before the name of Subhas Chandra Bose?
- AIndia
- BItaly
- CGermany
- DJapan
- ENone of the above
Who founded the Forward Bloc?
- ASardar Singh Rana
- BSubhas Chandra Bose
- CJayaprakash Narayan
- DLakshmi Sehgal
- ENone of the above
Who was the Finance Minister in the Interim Government?
- ALiaquat Ali Khan
- BSardar Patel
- CM.A. Jinnah
- DJawaharlal Nehru
- ENone of the above/More than one of the above
Which portfolio did Rajendra Prasad hold in the interim government formed in 1946?
- AFinance
- BDefense
- CHome
- DFood and Agriculture
- ENone of the above/ More than one of the above
Which of the following events happened first?
- AResolution of the Quit India Movement
- BArrival of the Cripps Mission
- CArrival of Lord Wavell as the Governor General
- DArrival of the Cabinet Mission
- ENone of the above/More than one of the above
Who started the journal 'Bahishkrit Bharat'?
- AJyotiba Phule
- BKarsandas Mulji
- CBal Gangadhar Tilak
- DBabasaheb Ambedkar
- ENone of the above/More than one of the above
Who has written the book 'Unhappy India'?
- ABal Gangadhar Tilak
- BAnnie Besant
- CLala Lajpat Rai
- DA.O. Hume
- ENone of the above/ More than one of the above
Ancient History 5 questions
Which of the following is a Harappan site in Gujarat?
- ALothal
- BDabarkot
- CKalibangan
- DRakhigarhi
- ENone of the above/ More than one of the above
Who got enlightenment in Bodh Gaya?
- AMahavir Swami
- BGautam Buddha
- CSamdhar Swami
- DParshvanath Swami
- ENone of the above/ More than one of the above
Who was the chairman of the First Buddhist Council?
- AVasumitra
- BMahakashyapa
- CSangharaksha
- DParshva
- ENone of the above/More than one of the above
Who was the founder of Chola dynasty?
- AVijayalaya
- BKarikal
- CAditya first
- DRajaraja first
- ENone of the above/ More than one of the above
Who wrote the book “Kiratarjuniya”?
- ABhatti
- BShudraka
- CKalidasa
- DBharavi
- ENone of the above/More than one of the above
Medieval History 5 questions
Who was the founder of the Vijayanagara Empire?
- ADevaray
- BKrishnadevaray
- CHarihara- Bukka
- DVir Narasimharay
- ENone of the above/ More than one of the above
The Qutub Minar was completed by-
- AIltutmish
- BQutbuddin Aibak
- CUlugh Khan
- DRazia Sultan
- ENone of the above/ More than one of the above
Where is Sher Shah’s tomb located?
- ASasaram
- BManer
- CSitamarhi
- DPawapuri
- ENone of the above/ More than one of the above
During the time of which Mughal Emperor did Sir Thomas Roe come to India?
- ABabur
- BAkbar
- CJahangir
- DShah Jahan
- ENone of the above/ More than one of the above
Ain-i-Akbari was written by -
- AAbdul Qadir
- BAkbar
- CKhwaja Nizamuddin
- DAbul Fazl
- ENone of the above/ More than one of the above
Bihar Special GK 25 questions
Who led the Santhal rebellion in 1855 AD?
- ASido and Kanhu
- BBudhu Bhagat and Teja Bhagat
- CMulu Manek and Jodha Manek
- DMadari Pasi and Sahdev
- ENone of the above / More than one of the above
In the year 1913, who established a branch of the Anushilan Samiti in Patna?
- ARamanand Sinha
- BSatish Jha
- CSachindranath Sanyal
- DMore than one of the above
- ENone of the above
Who was the President of Gaya Session of the Indian National Congress held in 1922 AD?
- AChittaranjan Das
- BHakim Ajmal Khan
- CMahatma Gandhi
- DMaulana Abul Kalam Azad
- ENone of the above / More than one of the above
Who formed the Bihar Samajwadi Party (1931 AD)?
- APhoolchand Tiwari and Rajendra Prasad
- BPhoolan Prasad Verma and Jayaprakash Narayan
- CRajkumar Shukla and Swami Agnivesh
- DSwami Sahajanand and Swami Yogananda
- ENone of the above / More than one of the above
Who among the following escaped from Hazaribagh Jail during the Quit India Movement?
- ASachchidanand Sinha
- BJay Prakash Narayan
- CJagjivan Ram
- DRafi Ahmed Kidwai
- ENone of the above / More than one of the above
In which year was the first sitting of the Bihar Legislative Council convened?
- A1911
- B1913
- C1914
- D1919
- ENone of the above / More than one of the above
In which year was Bihar divided to form Jharkhand?
- A2000
- B2001
- C2004
- D2005
- ENone of the above / More than one of the above
How many seats are reserved for SC candidates in the Bihar Legislative Assembly?
- A38
- B40
- C44
- D46
- ENone of the above / More than one of the above
In which year was 50% reservation to women in Panchayat bodies in Bihar?
- A2005
- B2006
- C2009
- D2014
- ENone of the above / More than one of the above
Brahmayoni Hill is located in which district of Bihar?
- AGaya
- BRohtas
- CNalanda
- DNawada
- ENone of the above / More than one of the above
How is the fiscal deficit estimated in Bihar during 2021-22?
- ARs 22,511 crore
- BRs 27,617 crore
- CRs 20,011 crore
- DRs 21,543 crore
- ENone of the above / More than one of the above
According to the 15th Finance Commission’s recommendations, how much share will Bihar receive in the divisible pool of Central taxes from 2021-26?
- A4.12 percent
- B4.23 percent
- C4.89 percent
- D4.06 percent
- ENone of the above / More than one of the above
The new ministry proposed in the Bihar Budget for the year 2021-22 focuses on –
- AChild care
- BWomen empowerment
- CInfrastructure development
- DSkill and Entrepreneurship Development
- ENone of the above / More than one of the above
How many departments are included under the Human Development Sub-Mission in Bihar?
- A6
- B7
- C8
- D10
- ENone of the above / More than one of the above
In which agro-climatic region of Bihar are the maximum number of districts located?
- ANorth-East
- BNorth-West
- CSouth-East
- DSouth-West
- ENone of the above / More than one of the above
What type of banks are proposed to be set up in Bihar for agriculture and rural development?
- AKrishi Vigyan Bank
- BKrishi Yantra Bank
- CKrishi Vikas Bank
- DKrishi Utthan Bank
- ENone of the above / More than one of the above
Which district of Bihar has mica deposits?
- ARohtas
- BPatna
- CGaya
- DSaran
- ENone of the above / More than one of the above
According to the 2011 Census, which district of Bihar has more women than men?
- AGopalganj
- BBegusarai
- CPatna
- DSiwan
- ENone of the above / More than one of the above
Which is the first Ramsar site in Bihar?
- AKaimur Range
- BKharagpur Lake
- CKanwar Lake
- DRajgir Hill
- ENone of the above / More than one of the above
In which district of Bihar is the confluence of the Son and Ganga rivers located?
- ABuxar
- BPatna
- CBhojpur
- DNalanda
- ENone of the above / More than one of the above
In 2019, the value of the Human Development Index of Bihar was-
- A0.641
- B0.613
- C0.596
- D0.574
- ENone of the above / More than one of the above
'Digital India Award, 2020' was given to the Bihar Government for?
- AEstablishing technical institutes in Bihar
- BBringing the IT revolution in Bihar
- CFacilitating e-administration in Bihar
- DProviding services to the people stranded outside Bihar during the Covid-19 lockdown
- ENone of the above / More than one of the above
In which district of Bihar was the Garib Kalyan Rojgar Abhiyan launched by the Prime Minister in 2020?
- APatna
- BBanka
- CMadhepura
- DKhagaria
- ENone of the above / More than one of the above
Under the Digital Bihar programme, which students will receive computer education and training from 2021-22 onwards?
- AAll students of class V
- BAll students of class VI
- CAll students of class VII
- DAll students of class VIII
- ENone of the above / More than one of the above
Rashmi Kumari from Bihar is a/an-
- AInternational cricketer
- BInternational Carrom champion
- CFootball player
- DChess player
- ENone of the above / More than one of the above
Indian Polity 13 questions
Article 300 of the Indian constitution deal with -
- ASuits and Proceeding
- BGovernment contracts
- CAttorney General
- DRestrictions on trade and commerce
- ENone of the above/more than one of the above
Which of the following is not a part in the eleventh schedule of the constitution?
- ALibraries
- BFuel and fodder
- CRural sports
- DTechnical Training
- ENone of the above/more than one of the above
What is the 'division system' related to in Indian administration?
- AAudit/Accounts
- BCentre/State
- CPolicy/Implementation
- DAll India Services/Central Services
- ENone of the above/More than one of the above
What is the objective of the Citizenship (Amendment) Act, 2019?
- ATo remove Bangladeshi illegal immigrants
- BTo identify genuine Indian citizens
- CTo check border infiltration by foreigners
- DGranting citizenship to oppressed minority groups in Afghanistan, Bangladesh, and Pakistan
- ENone of the above
Which of the following is a parliamentary committee relating to delegation of power to make rules and regulations of the executive?
- ACommittee on Executive legislation
- BCommittee on subordinate legislation
- CCommittee on Administrative legislation
- DCommittee on Delegated legislation
- ENone of the above/more than one of the above
Judicial process in India is based on -
- AThe Constitution
- BThe due process of routine law
- CConventions
- DThe procedure established by law
- ENone of the above/more than one of the above
What position did A.S. Anand hold in the late 1990s?
- AComptroller and Auditor General
- BChief Justice of India
- CChief Vigilance Commissioner
- DAttorney General
- ENone of the above
The members of a State Legislative Council are not chosen by which of the following categories of persons?
- AMembers of the local bodies/panchayats
- BTeachers
- CGraduates
- DIndustrialists
- ENone of the above/More than one of the above
With reference to the Finance Commission of India, consider the following statements:
1. The Finance Commission is a statutory body.
2. The Finance Commission was established under Article 280 of the Constitution.
3. The recommendations made by the Finance Commission are only advisory in nature.
4. The first Finance Commission was established in 1950. Which of the statements given above is/are correct?- A1 and 4 only
- B3 and 4 only
- C2 and 3 only
- DOnly 2 and 4
- ENone of the above/More than one of the above
Which of the following is NOT a member of the 15th Finance Commission?
- AAshok Kumar Lahiri
- BSudipto Mundle
- CRamesh Chand
- DAjay Narayan Jha
- ENone of the above/More than one of the above
In Indian administration, the “Split System” is related to—
- AAudit/Accounts
- BCentre/State
- CPolicy/Implementation
- DAll-India Services/Central Services
- ENone of the above/More than one of the above
Who is India’s Permanent Representative to the United Nations?
- ATarun Bajaj
- BT. S. Tirumurti
- CAjay Seth
- DHarsh Vardhan Shringla
- ENone of the above/More than one of the above
On what date did India begin its two-year term as a non-permanent member of the United Nations Security Council?
- A1 October 2020
- B1 November 2020
- C1 January 2021
- D1 July 2021
- ENone of the above/More than one of the above
Geography 16 questions
What is the length of the Atal Tunnel, Rohtang, Himachal Pradesh?
- A8.02 km
- B9.02 km
- C10.02 km
- D11.02 km
- ENone of the above/More than one of the above
Ganga Plain has been described as a
- APediplane
- BPeniplane
- CGeosyncline
- DKarst plain
- ENone of the above / More than one of the above
Compare the Himalayan rivers with the Peninsular rivers based on the following comparison - 1. Most of the Himalayan rivers are perennial, whereas most of the Peninsular rivers are rain-fed. 2. The gradient of the Himalayan rivers is steeper than that of the Peninsular rivers. 3. The Peninsular rivers cause more erosion on their way in comparison to the Himalayan rivers. Choose the correct answer from the options given below.
- A1 and 2 only
- B2 and 3 only
- C1 and 3 only
- D1, 2 and 3
From which of the following do the Damodar, Koel, and Subarnarekha rivers originate?
- ADeccan Plateau
- BCentral Highland
- CChotanagpur Plateau
- DMeghalaya Plateau
- ENone of the above/More than one of the above
Which one of the following is a freshwater lake?
- AChilka
- BSambar
- CWular
- DLoktak
- ENone of the above / More than one of the above
The Pattiseema Project is associated with the integration of which of the following rivers?
- AKrishna and Kaveri
- BKrishna and Godavari
- CGodavari and Mahanadi
- DGanga and Brahmaputra
- ENone of the above/More than one of the above
Consider the following states: 1. Punjab 2. Uttar Pradesh 3. Andhra Pradesh 4. West Bengal Choose the correct ascending order of the above as rice-producing states in India.
- AWest Bengal, Punjab, Andhra Pradesh, Uttar Pradesh
- BWest Bengal, Uttar Pradesh, Andhra Pradesh, Punjab
- CAndhra Pradesh, Uttar Pradesh, West Bengal, Punjab
- DAndhra Pradesh, Punjab, Uttar Pradesh, West Bengal
- ENone of the above/More than one of the above
What is the most famous feature of Chiriya located in West Singhbhum?
- AIron-ore mining
- BDam
- CBird Sanctuary
- DNational Park
- ENone of the above/More than one of the above
Combustion of underground coal occurs in the state of -
- AWest Bengal
- BBihar
- CJharkhand
- DOdisha
- ENone of the above/More than one of the above
The theory of continental drift was developed by?
- AJ.J. Wilson
- BA. Wegener
- CDu Toit
- DH. Hess
- ENone of the above / More than one of the above
Which of the following countries does not have a land border with the Dead Sea?
- ALebanon
- BJordan
- CIsrael
- DPalestine
- ENone of the above / More than one of the above
Sunda Trench lies parallel to the island of
- AJava
- BMaldives
- CSumatra
- DBhaurikas
- ENone of the above / More than one of the above
Which of the following statements are true regarding Esker and Drumlin? 1. Eskers are ridges of crudely bedded gravel and sand. 2. Drumlins are mostly made of boulders and clay. 3. Egg basket topography is characteristic of areas with eskers. 4. While eskers are formed by the currents of glaciers, drumlins are produced by the action of glaciers. Select the correct answer from the options given below.
- A1, 2 and 3
- B1, 2 and 4
- C3 and 4 only
- D1 and 2 only
- Enone of the above / more than one of the above
Geodesy is the science which deals with –
- AThe dating of terrestrial rocks
- BMeasurement of Earth’s dimensions
- CMeasurement of elevation and depression of the earth
- DRecording of changes made by the crust
- ENone of the above/More than one of the above
Recently, China has claimed rights over the areas around the Sakteng Wildlife Sanctuary, calling it a disputed area. Where is this wildlife sanctuary located?
- AArunachal Pradesh
- BBhutan
- CNepal
- DBangladesh
- ENone of the above/More than one of the above
It is advised not to sleep under a tree at night because trees—
- ARelease a lesser amount of oxygen
- BRelease harmful gases at night
- CRelease carbon dioxide
- DRelease carbon monoxide
- ENone of the above/more than one of the above
Biology 20 questions
Most of the enzymes are
- Alipids
- Bacids
- Calkalis
- Dproteins
- ENone of the above/More than one of the above
Fungi are plants that lack
- Acarbon dioxide
- Bchlorophyll
- Csunlight
- Doxygen
- ENone of the above/More than one of the above
Pine, Fir, Spruce, Cedar, Larch and Cypress are famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
- Agymnosperm
- Bmonocotyledons
- Cdicotyledons
- Dangiosperm
- ENone of the above/More than one of the above
Stem of a plant helps in distributing food to all parts of the plant. It also helps in
- Astoring the food
- Bshaping the plant
- Crespiration
- Dphotosynthesis
- ENone of the above/More than one of the above
Plants receive their nutrients mainly from
- Aatmosphere
- Blight
- Csoil
- Dchlorophyll
- ENone of the above/More than one of the above
Water passes from the soil into the roots by a physical process called
- Adiffusion
- Btranspiration
- Cabsorption
- Dosmosis
- ENone of the above/More than one of the above
In the nighttime, it is advised not to sleep under trees because
- Athey liberate less amount of oxygen
- Bthey liberate harmful gases at night
- Cthey liberate carbon dioxide
- Dthey liberate carbon monoxide
- ENone of the above/More than one of the above
Insectivorous plants grow in soil deficient in
- Awater
- Bmagnesium
- Cnitrogen
- Dcalcium
- ENone of the above/More than one of the above
The ultimate substance to which the carbohydrates are degraded is
- Aglycerol
- Bglucose
- Cmaltose
- Damino acid
- ENone of the above/More than one of the above
The animal without red blood cells is
- Aearthworm
- Bsnake
- Cpeacock
- DMore than one of the above
- ENone of the above
In transfusion, blood must be compatible not only in blood type but also in
- ARh factor
- Bthe number of white cells
- Cthe number of red cells
- Drace of donor and recipient
- ENone of the above/More than one of the above
The universal acceptor blood group is
- AA
- BB
- CAB
- DO
- ENone of the above/More than one of the above
Pituitary gland is located in
- Aintestine
- Bbrain
- Ckidney
- DMore than one of the above
- ENone of the above
Pollination is best defined as
- Agermination of pollen grains
- Bgrowth of pollen tube in ovule
- Cvisiting flowers by insects
- Dtransfer of pollen grain from anther to stigma
- ENone of the above/More than one of the above
From the following pairs, find the one which is correctly matched.
- ATuberculosis-ATS
- BTetanus-BCG
- CMalaria-Chloroquine
- DScurvy-Thiamine
- ENone of the above/More than one of the above
Pneumonia is an infection of
- Anerve
- Bblood
- Cskin
- Dlungs
- ENone of the above/More than one of the above
Covishield, the COVID vaccine of India which is approved by WHO, is manufactured by
- ASerum Institute
- BBharat Biotech
- CPanacea Biotec
- DZydus Cadila
- ENone of the above/More than one of the above
What are salt-loving plants called?
- AMesophytes
- BGlycophytes
- CHalophytes
- DXerophytes
- ENone of the above/More than one of the above
Biodegradable wastes can usually be converted into useful substance with the help of
- Abacteria
- Bviruses
- Cnuclear proteins
- Dradioactive substances
- ENone of the above/More than one of the above
Who was the first scientist/doctor, who attempted vaccination?
- ARobert Koch
- BElie Metchnikoff
- CEdward Jenner
- DJoseph Lister
- ENone of the above/More than one of the above
Chemistry 20 questions
The nucleus of an atom consists of
- Aelectrons and protons
- Bprotons and neutrons
- Celectrons only
- Delectrons and neutrons
- ENone of the above/More than one of the above
Which among the following is an incorrect option?
- AAtom is electrically neutral due to the presence of protons and electrons inside the nucleus.
- BElectrons are negatively charged and have negligible mass.
- CAtomic number is the number of protons in an atom of an element.
- DIsotopes are useful as nuclear fuel, in medical field, in carbon dating, etc.
- ENone of the above/More than one of the above
The mass number of a nucleus is
- Athe sum of the numbers of neutrons and protons
- Bthe total mass of neutrons and protons
- Calways more than the atomic weight
- Dalways less than its atomic number
- ENone of the above/More than one of the above
Isotopes of an element differ in
- Athe number of protons
- Bthe mass number
- Cthe number of electrons
- Dthe atomic number
- ENone of the above/More than one of the above
Consider the following statements:
1. Addition of salt to pure water increases the boiling point of water and decreases the freezing point of water.
2. When methyl alcohol is added to water boiling point of water decreases.
Which of the above statements is/are correct?- A1 only
- B2 only
- CBoth 1 and 2
- DSalt and methyl alcohol are same in behaviour
- ENone of the above/More than one of the above
Which law states that, under the same conditions of temperature and pressure, equal volumes of all gases contain an equal number of molecules?
- AGraham's law
- BPascal's law
- CAvogadro's law
- DCoriolis effect
- ENone of the above/More than one of the above
What happens to the weight of iron, when it rusts?
- ADecreases then increases
- BIncreases then decreases
- CRemains same
- DIt increases for a long time
- ENone of the above/More than one of the above
Which among the following solutions has pH value more than 7?
- ABuffer solution
- BBasic solution
- CAcidic solution
- DNeutral solution
- ENone of the above / More than one of the above
Which among the following is the main constituent of biogas?
- APropane
- BButane
- CEthane
- DMethane
- ENone of the above/More than one of the above
Which of the following is the major constituent of the liquefied petroleum gas?
- AMethane
- BEthane
- CPropane
- DButane
- ENone of the above/More than one of the above
The metallurgical process in which a metal is obtained in a fused state is called
- Aroasting
- Bcalcination
- Cfroth floatation
- Dsmelting
- ENone of the above/More than one of the above
Which among the following are constituents of brass?
- AIron and zinc
- BCopper and nickel
- CIron and copper
- DZinc and copper
- ENone of the above/More than one of the above
Which among the following is known as quicklime?
- ACaCO3
- BCa(OH)2
- CCaCl2
- DCaO
- ENone of the above/More than one of the above
Which among the following is also known as white metal?
- ANickel
- BRhodium
- CPlatinum
- DPalladium
- ENone of the above / More than one of the above
Consider the following statements with respect to noble metals:
1. Noble metals are found in pure form in nature.
2. Uranium and lead are examples of noble metal.
Which of the above statements is/are correct?- A2 only
- BBoth 1 and 2
- CBrass is also noble metal
- D1 only
- ENone of the above/More than one of the above
Which among the following would cause the bright red colour due to bursting of crackers?
- ASodium
- BSulphur
- CMagnesium
- DStrontium
- ENone of the above/More than one of the above
Select the incorrect statement out of the following:
- ACotton is suitable for use as clothing in summer because it absorbs moisture.
- BPolycarbonate is used for making CDs.
- CAcrylic is also called artificial silk as it is prepared from cotton but shines like silk.
- DTeflon is used for coating non-stick kitchen wares.
- ENone of the above/More than one of the above
Which of the following statements about graphite and diamond is true?
- AThey have the same crystal structure.
- BThey have the same hardness.
- CThey have the same electrical conductivity.
- DThey can undergo the same chemical reaction.
- ENone of the above/More than one of the above
Which of the following is the main ingredient of cement?
- ALimestone
- BSilica clay
- CGypsum
- DAsh
- ENone of the above/More than one of the above
The most important ore of aluminum is
- ABauxite
- BCalamine
- CCalcite
- DGalena
- ENone of the above/More than one of the above
Physics 21 questions
Which of the following is not a vector quantity?
- AVelocity
- BTorque
- CDisplacement
- DSpeed
- ENone of the above/More than one of the above
The working principle of a washing machine is
- Adiffusion
- Bcentrifugation
- Cdialysis
- Dreverse osmosis
- ENone of the above/More than one of the above
Who is the first person to define speed?
- ANewton
- BKepler
- CPtolemy
- DGalileo
- ENone of the above/More than one of the above
If the spinning speed of the earth increases, then the weight of the body at the equator will
- Adecrease
- Bremain same
- Cbe doubled
- Dincrease
- ENone of the above/More than one of the above
If a feather, a rubber ball, and a wooden ball are falling freely simultaneously from the same height in a vacuum, then
- Athe feather will reach at the ground first
- Bthe rubber ball will reach at the ground first
- Cthe wooden ball will reach at the ground first
- Dall the three will reach at the ground together
- ENone of the above/More than one of the above
A piece of ice is floating in a beaker containing water up to its brim. When the whole of the ice melts
- Athe water will spill on the floor
- Bthe level of water will come down in the beaker
- Cthe level of water will first fall and then it will spill out of the beaker
- Dthe water level will not change
- ENone of the above/More than one of the above
The temperature point at which solid, liquid and gaseous states may stay together is known as
- Aboiling point
- Bmelting point
- Cfreezing point
- Dtriple point
- ENone of the above/More than one of the above
A fan produces a feeling of comfort during the hot weather because
- Afan supplies cool air
- Bour body radiates more heat in air
- Cconductivity of air increases
- Dour perspiration evaporates rapidly
- ENone of the above/More than one of the above
Food gets cooked faster in a pressure cooker because
- Awater starts boiling at low temperature due to high pressure
- Bwater starts boiling at high temperature due to high pressure
- Cwater starts boiling at low temperature due to low pressure
- Dwater starts boiling at high temperature due to low pressure
- ENone of the above/More than one of the above
If the doors of a refrigerator are left open for few hours, then the room temperature will
- Adecrease
- Bincrease
- Cremain the same
- Ddecrease only in the area in the vicinity of the refrigerator
- ENone of the above/More than one of the above
Which of the following rays/waves are used to know the growth of the fetus in the womb?
- AX-rays
- BMicrowaves
- CUltrasonic waves
- DUltraviolet rays
- ENone of the above/More than one of the above
What type of lens is used in magnifying glass?
- APlano-concave lens
- BConvex lens
- CConvex mirror
- DConcave lens
- ENone of the above/More than one of the above
The speed of light will be minimum while passing through
- AVacuum
- Bair
- Cglass
- Dwater
- ENone of the above/More than one of the above
A person standing in front of a mirror finds his image larger than himself. This implies that the mirror is
- Aconcave
- Bplane
- Cconvex
- Dcylindrical with bulging side outwards
- ENone of the above/More than one of the above
Twinkling of stars in clear sky during nighttime can be explained with
- Arefraction of light
- Breflection of light
- Cpolarization of light
- Dinterference of light
- ENone of the above/More than one of the above
When a soap film on the water is seen in the daytime, it shows beautiful colors. This phenomenon is due to
- Adiffraction of light
- Brefraction of light
- Cpolarization of light
- Dinterference of light
- ENone of the above/More than one of the above
Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as
- AJoule effect
- BSeebeck effect
- CPeltier effect
- DThomson effect
- ENone of the above/More than one of the above
Which of the following is not correctly matched?
- AVoltmeter - Potential difference
- BAmmeter - Electric current
- CPotentiometer - Electromotive force
- DGalvanometer - Electric resistance
- ENone of the above/More than one of the above
The paramagnetic theory of magnetism applies to
- Amercury
- Biron
- Cplatinum
- Dnickel
- ENone of the above/More than one of the above
The 'theory of relativity' is presented by which scientist?
- AIsaac Newton
- BStephen Hawking
- CMarie Curie
- DAlbert Einstein
- ENone of the above/More than one of the above
Hydrogen bomb is based on the principle of
- Acontrolled fusion reaction
- Buncontrolled fusion reaction
- Ccontrolled fission reaction
- Duncontrolled fission reaction
- ENone of the above/More than one of the above