Previous Year Paper

Bihar Police Constable Memory Based Paper (Held On: 22 Oct 2017) (Previous Year Paper)

Held in 2017

100 questions120 minutes
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Written Test (100 questions)

Question 1

What was the objective of the Consumer Protection Act 1986?

  1. AOption (a)

    Providing mechanism to action on the complaints

  2. BOption (b)

    To aware consumer to their rights

  3. COption (c)

    To protect consumers against fraud and unfairness

  4. DOption (d)

    All of the above

View answer & explanation

Correct answer

Answer: (a)A.

Providing mechanism to action on the complaints

Question 2

'यौवन' शब्द किस संज्ञा का उदाहरण होगा ?

  1. AOption (a)

    व्यक्तिवाचक संज्ञा

  2. BOption (b)

    भाववाचक संज्ञा

  3. COption (c)

    द्रव्यवाचक संज्ञा

  4. DOption (d)

    समूहवाचक संज्ञा

View answer & explanation

Correct answer

Answer: (a)A.

व्यक्तिवाचक संज्ञा

Question 3

Hirakund Project is situated on which river?

  1. AOption (a)

    Kaveri

  2. BOption (b)

    Godawari

  3. COption (c)

    Mahanadi

  4. DOption (d)

    Chambal

View answer & explanation

Correct answer

Answer: (a)A.

Kaveri

Question 4

Which of the following is not an example of a bio-mass energy source ?

  1. AOption (a)

    wood

  2. BOption (b)

    gobar-gas

  3. COption (c)

    nuclear energy

  4. DOption (d)

    coal

View answer & explanation

Correct answer

Answer: (a)A.

wood

Question 5

Tropic of Cancer does NOT pass through which of the following Indian state?

  1. AOption (a)

    Mizoram

  2. BOption (b)

    Gujarat

  3. COption (c)

    Tripura

  4. DOption (d)

    Maharashtra

View answer & explanation

Correct answer

Answer: (a)A.

Mizoram

Question 6

Kilowatt-hour (kWh) represents the unit of which of the following?

  1. AOption (a)

    Electrical Power

  2. BOption (b)

    Force

  3. COption (c)

    Momentum

  4. DOption (d)

    Energy

View answer & explanation

Correct answer

Answer: (a)A.

Electrical Power

Question 7

Which of the following Railway Stations was formerly known as Victoria Terminus?

  1. AOption (a)

    Churchgate Railway Station

  2. BOption (b)

    Mumbai Centra

  3. COption (c)

    Lokmanya Tilak Terminus

  4. DOption (d)

    Chhatrapathi Shivaji Terminus

View answer & explanation

Correct answer

Answer: (a)A.

Churchgate Railway Station

Question 8

The transformation of the larva into an adult through drastic changes is known as which of the following?

  1. AOption (a)

    Viviparous

  2. BOption (b)

    Oviparous

  3. COption (c)

    Embryo

  4. DOption (d)

    Metamorphosis

View answer & explanation

Correct answer

Answer: (a)A.

Viviparous

Question 9

What does the term 'Dumping' refer to?

  1. AOption (a)

    The sale of a sub-standard commodity

  2. BOption (b)

    Sale in a foreign market of a commodity at a price below marginal cost

  3. COption (c)

    Sale in a foreign market of a commodity just at a marginal cost with too much profit

  4. DOption (d)

    Smuggling of goods without paying any customs duty

View answer & explanation

Correct answer

Answer: (a)A.

The sale of a sub-standard commodity

Question 10

Who was the founder of Buddhism?

  1. AOption (a)

    Mahavir

  2. BOption (b)

    Siddhartha

  3. COption (c)

    Chanakya

  4. DOption (d)

    Ashoka the great

View answer & explanation

Correct answer

Answer: (a)A.

Mahavir

Question 11

Use the correct antonym for underlined words:

She looks pretty no matter what she wears.

  1. AOption (a)

    Attractive

  2. BOption (b)

    Lovely

  3. COption (c)

    Charming

  4. DOption (d)

    Ugly

View answer & explanation

Correct answer

Answer: (a)A.

Attractive

Question 12

The function of Central Vigilance Commission of India is -

  1. AOption (a)

    To supervise investigating agencies in the country.

  2. BOption (b)

    To expedite decisions on pending criminal cases in the Court of law.

  3. COption (c)

    To scrutinize utilization of expenditure on development schemes of the government.

  4. DOption (d)

    To investigate cases against public servants.

View answer & explanation

Correct answer

Answer: (a)A.

To supervise investigating agencies in the country.

Question 13

The fuel used in nuclear power plant is:

  1. AOption (a)

    Gasoline

  2. BOption (b)

    Gold

  3. COption (c)

    Uranium

  4. DOption (d)

    Radium

View answer & explanation

Correct answer

Answer: (a)A.

Gasoline

Question 14

Which of the following options is the correct word for "Map showing the distribution of forest"?

  1. AOption (a)

    Forest ecology

  2. BOption (b)

    Topography

  3. COption (c)

    Thematic map

  4. DOption (d)

    Pedology

View answer & explanation

Correct answer

Answer: (a)A.

Forest ecology

Question 15

During Gupta Age, Aryabhatta was a great ______________.

  1. AOption (a)

    politician

  2. BOption (b)

    sculptor

  3. COption (c)

    mathematician

  4. DOption (d)

    None of the above

View answer & explanation

Correct answer

Answer: (a)A.

politician

Question 16

(2/5) + (6/7) + (3/10) + x = 9, find the value of x?

  1. AOption (a)

    521/50

  2. BOption (b)

    521/70

  3. COption (c)

    522/39

  4. DOption (d)

    621/70

View answer & explanation

Correct answer

Answer: (a)A.

521/50

Question 17

अधिकरण कारक का विभक्ति चिह्न है-

  1. AOption (a)

    से, तक

  2. BOption (b)

    अरे

  3. COption (c)

    का, के

  4. DOption (d)

    में, पर

View answer & explanation

Correct answer

Answer: (a)A.

से, तक

Question 18

An Element has Atomic number 16 and Mass number 32, then number of neutrons present in it?

  1. AOption (a)

    8

  2. BOption (b)

    10

  3. COption (c)

    14

  4. DOption (d)

    16

View answer & explanation

Correct answer

Answer: (a)A.

8

Question 19

Direction: Fill in the blank with a suitable preposition in the given sentence:

The newspaper is ______ the coffee table.

  1. AOption (a)

    at

  2. BOption (b)

    in

  3. COption (c)

    for

  4. DOption (d)

    on

View answer & explanation

Correct answer

Answer: (a)A.

at

Question 20

What will come in place of question mark ‘?’ in the following question?

2.75% of 450 – 1.75% of 650 = ?

  1. AOption (a)

    16

  2. BOption (b)

    5

  3. COption (c)

    2

  4. DOption (d)

    1

View answer & explanation

Correct answer

Answer: (a)A.

16

Question 21

'लिखवाना' शब्द किस क्रिया का है? 

  1. AOption (a)

    सामान्य क्रिया 

  2. BOption (b)

    संयुक्त क्रिया 

  3. COption (c)

    नामधातु क्रिया 

  4. DOption (d)

    प्रेरणार्थक क्रिया 

View answer & explanation

Correct answer

Answer: (a)A.

सामान्य क्रिया 

Question 22

Which of the following state is the largest producer of Rubber in India?

  1. AOption (a)

    Kerala

  2. BOption (b)

    Tamil Nadu

  3. COption (c)

    Karnataka

  4. DOption (d)

    Tripura

View answer & explanation

Correct answer

Answer: (a)A.

Kerala

Question 23

​Name the physicist who is credited with the discovery of the Neutron. This 1932 discovery led to his winning the Nobel Prize.

  1. AOption (a)

    J. S. Fleming

  2. BOption (b)

    Enrico Fermi

  3. COption (c)

    Max Plank

  4. DOption (d)

    James Chadwick

View answer & explanation

Correct answer

Answer: (a)A.

J. S. Fleming

Question 24

If a2 + b2 + c2 = ab + bc + ca then the value of a3+ b3 + c3 – 3abc is

  1. AOption (a)

    0

  2. BOption (b)

    1

  3. COption (c)

    -1

  4. DOption (d)

    2

View answer & explanation

Correct answer

Answer: (a)A.

0

Question 25

In the equation of motion v = u + at, u represents _______.

  1. AOption (a)

    Initial velocity

  2. BOption (b)

    Final velocity

  3. COption (c)

    Kinetic energy

  4. DOption (d)

    Potential energy

View answer & explanation

Correct answer

Answer: (a)A.

Initial velocity

Question 26

Who upheld the view that religion can never be separated from politics?

  1. AOption (a)

    Dayanand Saraswati

  2. BOption (b)

    Raja Ram Mohan Roy

  3. COption (c)

    Gopal Krishna Gokhlae

  4. DOption (d)

    Mahatma Gandhi

View answer & explanation

Correct answer

Answer: (a)A.

Dayanand Saraswati

Question 27

Which of the following is/are the features of democracy?

  1. AOption (a)

    Rulers are elected by the people who take all the major decisions

  2. BOption (b)

    A democracy is based on a free and fair election where those currently in power have a fair chance of losing. 

  3. COption (c)

    The exercise of this choice leads to a government limited by basic rules of the constitution and citizens’ rights.

  4. DOption (d)

    All of the Above

View answer & explanation

Correct answer

Answer: (a)A.

Rulers are elected by the people who take all the major decisions

Question 28

Which is the main mode of transport in India?

  1. AOption (a)

    Aviation

  2. BOption (b)

    Railways

  3. COption (c)

    Roads

  4. DOption (d)

    Ports

View answer & explanation

Correct answer

Answer: (a)A.

Aviation

Question 29

दिए गए विकल्पों में से कौन सा शब्द ‘समुद्र’ का पर्यायवाची है?

  1. AOption (a)

    पयोधि

  2. BOption (b)

    अंबर

  3. COption (c)

    अभ्र

  4. DOption (d)

    वारि

View answer & explanation

Correct answer

Answer: (a)A.

पयोधि

Question 30

Why oil does not mix with water?

  1. AOption (a)

    Molecules of oil are non-polar

  2. BOption (b)

    Molecules of oil are bigger than that of water

  3. COption (c)

    Both 1 and 2 are correct

  4. DOption (d)

    None of the above

View answer & explanation

Correct answer

Answer: (a)A.

Molecules of oil are non-polar

Question 31

Which country is not a permanent member of UNSC?

  1. AOption (a)

    India

  2. BOption (b)

    USA

  3. COption (c)

    Russia

  4. DOption (d)

    France

View answer & explanation

Correct answer

Answer: (a)A.

India

Question 32

Which was the first State in India to pass the GST bill?

  1. AOption (a)

    Tamil Nadu

  2. BOption (b)

    Gujarat

  3. COption (c)

    Madhya Pradesh

  4. DOption (d)

    Assam

View answer & explanation

Correct answer

Answer: (a)A.

Tamil Nadu

Question 33

तत्सम शब्द किसे कहते हैं:

  1. AOption (a)

    किसी भाषा के मूल शब्द को 

  2. BOption (b)

    शब्द के विकृत रूप को 

  3. COption (c)

    जिनकी कोई व्युत्पत्ति नहीं होती 

  4. DOption (d)

    उपर्युक्त सभी 

View answer & explanation

Correct answer

Answer: (a)A.

किसी भाषा के मूल शब्द को 

Question 34

_________ is known as father of Modern Hindi Literature?

  1. AOption (a)

    Bharatendu Harishchandra

  2. BOption (b)

    Munshi Premchand

  3. COption (c)

    Maithili Sharan Gupt

  4. DOption (d)

    Suryakant Tripathi Nirala

View answer & explanation

Correct answer

Answer: (a)A.

Bharatendu Harishchandra

Question 35

If the length, breadth and height of a cuboid are 7.5 m, 22 m and 13 m, respectively, then find the volume of the cuboid.

  1. AOption (a)

    2145 m3

  2. BOption (b)

    1245 m3

  3. COption (c)

    4215 m3

  4. DOption (d)

    2154 m3

View answer & explanation

Correct answer

Answer: (a)A.

2145 m3

Question 36

Who has written ‘Das Kapital’?

  1. AOption (a)

    Freidrich Engels

  2. BOption (b)

    G.W.F Hegel

  3. COption (c)

    Karl Marx

  4. DOption (d)

    Max Weber

View answer & explanation

Correct answer

Answer: (a)A.

Freidrich Engels

Question 37

Amarbel (Cuscuta) is a

  1. AOption (a)

    Autotroph

  2. BOption (b)

    Parasite

  3. COption (c)

    Saprophyte

  4. DOption (d)

    Decomposer

View answer & explanation

Correct answer

Answer: (a)A.

Autotroph

Question 38

Economically, one of the results of the British rule in India in the 19th century was the

  1. AOption (a)

    increase in the export of Indian handicrafts

  2. BOption (b)

    growth in the number of Indian owned factories

  3. COption (c)

    commercialization of Indian agriculture

  4. DOption (d)

    rapid increase in the urban population

View answer & explanation

Correct answer

Answer: (a)A.

increase in the export of Indian handicrafts

Question 39

Cholesterol is a?

  1. AOption (a)

    Type of chlorophyll

  2. BOption (b)

    Fatty alcohol found in animal fats

  3. COption (c)

    Derivative of chloroform

  4. DOption (d)

    Chromium salt

View answer & explanation

Correct answer

Answer: (a)A.

Type of chlorophyll

Question 40

When did the Right to Education come into force?

  1. AOption (a)

    April, 2010

  2. BOption (b)

    July, 2010

  3. COption (c)

    December, 2010

  4. DOption (d)

    January, 2011

View answer & explanation

Correct answer

Answer: (a)A.

April, 2010

Question 41

The part of the land which is almost surrounded by water from all three sides but connected to the mainland on one side is called ______.

  1. AOption (a)

    Strait

  2. BOption (b)

    Island

  3. COption (c)

    Isthmus

  4. DOption (d)

    Peninsula

View answer & explanation

Correct answer

Answer: (a)A.

Strait

Question 42

Kisan Credit Card (KCC) Scheme was started since

  1. AOption (a)

    July 1998

  2. BOption (b)

    August 1998

  3. COption (c)

    September 1998

  4. DOption (d)

    October 1998

View answer & explanation

Correct answer

Answer: (a)A.

July 1998

Question 43

The measure of amount of water vapour in the atmosphere is called

  1. AOption (a)

    Humidity

  2. BOption (b)

    Temperature

  3. COption (c)

    Transpiration

  4. DOption (d)

    Evaporation

View answer & explanation

Correct answer

Answer: (a)A.

Humidity

Question 44

Select the verb form of an adjective "excellent" from the given options:

  1. AOption (a)

    excel

  2. BOption (b)

    excellently

  3. COption (c)

    excellence

  4. DOption (d)

    excellenting

View answer & explanation

Correct answer

Answer: (a)A.

excel

Question 45

Choose the most appropriate adjective form of the following word.

ADVENTURE

  1. AOption (a)

    Adventuree

  2. BOption (b)

    Adventured

  3. COption (c)

    Adventures

  4. DOption (d)

    Adventurous

View answer & explanation

Correct answer

Answer: (a)A.

Adventuree

Question 46

निम्न शब्दों मे से ‘ओजस्वी’ का उचित विपरीत शब्द क्या है?

  1. AOption (a)

    निस्तेज 

  2. BOption (b)

    ओछा 

  3. COption (c)

    अपूर्ण 

  4. DOption (d)

    प्रभावित 

View answer & explanation

Correct answer

Answer: (a)A.

निस्तेज 

Question 47

Fill in the blank with the suitable gerund:

I like ________ for a walk.

  1. AOption (a)

    Going

  2. BOption (b)

    To go

  3. COption (c)

    In going

  4. DOption (d)

    On going

View answer & explanation

Correct answer

Answer: (a)A.

Going

Question 48

I would like _________ you for coming here tonight.

Fill in the blank with a suitable infinitive.

  1. AOption (a)

    thanking

  2. BOption (b)

    to thanked

  3. COption (c)

    to thank

  4. DOption (d)

    to be thanking

View answer & explanation

Correct answer

Answer: (a)A.

thanking

Question 49

Which of the following is a noble gas/element?

  1. AOption (a)

    Ca

  2. BOption (b)

    F

  3. COption (c)

    N

  4. DOption (d)

    Ne

View answer & explanation

Correct answer

Answer: (a)A.

Ca

Question 50

त, थ, द, ध, न का उच्चारण __________ से होता है।

  1. AOption (a)

    तालु

  2. BOption (b)

    नासिका

  3. COption (c)

    दंत

  4. DOption (d)

    कंठ

View answer & explanation

Correct answer

Answer: (a)A.

तालु

Question 51

The oldest mountain range of India is-

  1. AOption (a)

    Himalaya

  2. BOption (b)

    Aravali

  3. COption (c)

    Vindyachal

  4. DOption (d)

    Shivalik

View answer & explanation

Correct answer

Answer: (a)A.

Himalaya

Question 52

On which date the Kisan Call Center launched in India?

  1. AOption (a)

    January 26, 2002

  2. BOption (b)

    January 21, 2004

  3. COption (c)

    April 21, 2005

  4. DOption (d)

    November 14, 1996

View answer & explanation

Correct answer

Answer: (a)A.

January 26, 2002

Question 53

Which of the following is not a part of Shiwalik range of Bihar?

  1. AOption (a)

    Jethian hill

  2. BOption (b)

    Ramanagar doon

  3. COption (c)

    Someshwar range

  4. DOption (d)

    Harha valley

View answer & explanation

Correct answer

Answer: (a)A.

Jethian hill

Question 54

Which one is an ideal fuel?

  1. AOption (a)

    Kerosene

  2. BOption (b)

    Coal

  3. COption (c)

    Natural gas

  4. DOption (d)

    Wood

View answer & explanation

Correct answer

Answer: (a)A.

Kerosene

Question 55

हिंदी वर्णमाला में कुल कितने व्यंजन हैं?

  1. AOption (a)

    48

  2. BOption (b)

    25

  3. COption (c)

    40

  4. DOption (d)

    41

View answer & explanation

Correct answer

Answer: (a)A.

48

Question 56

Who called the multipurpose river valley projects ‘the temples of modern India’?

  1. AOption (a)

    Dr Rajendra Prasad

  2. BOption (b)

    Jawaharlal Nehru

  3. COption (c)

    Indira Gandhi

  4. DOption (d)

    Mahatma Gandhi

View answer & explanation

Correct answer

Answer: (a)A.

Dr Rajendra Prasad

Question 57

In photosynthesis which gas is released by the green plants?

  1. AOption (a)

    Oxygen

  2. BOption (b)

    Nitrogen

  3. COption (c)

    Carbon-dioxide

  4. DOption (d)

    Water-vapour

View answer & explanation

Correct answer

Answer: (a)A.

Oxygen

Question 58

The study of grass is known as ________.

  1. AOption (a)

    Agronomy

  2. BOption (b)

    Pharmacognosy

  3. COption (c)

    Dendrology

  4. DOption (d)

    Agrostology

View answer & explanation

Correct answer

Answer: (a)A.

Agronomy

Question 59

Water is often treated with chlorine to

  1. AOption (a)

    To Increase oxygen content

  2. BOption (b)

    To Kill germs

  3. COption (c)

     To Remove sedimentation 

  4. DOption (d)

    To Remove insoluble impurities

View answer & explanation

Correct answer

Answer: (a)A.

To Increase oxygen content

Question 60

Fermentation is the process of ______.

  1. AOption (a)

    Conversion of starch into sugar

  2. BOption (b)

    Conversion of sugar into alcohol

  3. COption (c)

    Conversion of protein into sugar

  4. DOption (d)

    adding yeast to make wine

View answer & explanation

Correct answer

Answer: (a)A.

Conversion of starch into sugar

Question 61

Air moves from the high-pressure area over the southern Indian Ocean in a south-easterly direction and turn right towards low pressure areas over the Indian subcontinent. These we know as the ______ winds.

  1. AOption (a)

    Easterly

  2. BOption (b)

    Westerly

  3. COption (c)

    South-West Monsoon

  4. DOption (d)

    Trade

View answer & explanation

Correct answer

Answer: (a)A.

Easterly

Question 62

The human skull is a collection of ________ bones.

  1. AOption (a)

    18

  2. BOption (b)

    22

  3. COption (c)

    30

  4. DOption (d)

    25

View answer & explanation

Correct answer

Answer: (a)A.

18

Question 63

Convert 19 Kilogram 50 grams into grams.

  1. AOption (a)

    19500 grans

  2. BOption (b)

    19050 grams

  3. COption (c)

    1950 grams

  4. DOption (d)

    0.1950 grams

View answer & explanation

Correct answer

Answer: (a)A.

19500 grans

Question 64

Identify the SI unit of electrical resistance.

  1. AOption (a)

    Ohm

  2. BOption (b)

    Watt

  3. COption (c)

    Coulomb

  4. DOption (d)

    Ampere

View answer & explanation

Correct answer

Answer: (a)A.

Ohm

Question 65

‘भरपेट’ शब्द में किस समास का प्रयोग हुआ है?

  1. AOption (a)

    कर्मधारय 

  2. BOption (b)

    अव्ययीभाव

  3. COption (c)

    द्वन्द्व

  4. DOption (d)

    तत्पुरुष

View answer & explanation

Correct answer

Answer: (a)A.

कर्मधारय 

Question 66

Which country has come forward to help clean India's River Ganga?

  1. AOption (a)

    Iran

  2. BOption (b)

    Israel

  3. COption (c)

    Ireland

  4. DOption (d)

    Italy

View answer & explanation

Correct answer

Answer: (a)A.

Iran

Question 67

कवि का स्त्रीलिंग रूप होगा

  1. AOption (a)

    कवित्री

  2. BOption (b)

    लेखिका

  3. COption (c)

    कवीत्री

  4. DOption (d)

    कवयित्री

View answer & explanation

Correct answer

Answer: (a)A.

कवित्री

Question 68

Polio and chicken pox are caused by which of the following microorganism?

  1. AOption (a)

    Virus

  2. BOption (b)

    Fungi

  3. COption (c)

    Bacteria

  4. DOption (d)

    Protozoa

View answer & explanation

Correct answer

Answer: (a)A.

Virus

Question 69

Which Indian state is the largest by area?

  1. AOption (a)

    Maharashtra

  2. BOption (b)

    Uttar Pradesh

  3. COption (c)

    Rajasthan

  4. DOption (d)

    Madhya Pradesh

View answer & explanation

Correct answer

Answer: (a)A.

Maharashtra

Question 70

Conduction in plants occurs through

  1. AOption (a)

    xylem

  2. BOption (b)

    phloem

  3. COption (c)

    Both (1) and (2)

  4. DOption (d)

    None of the above

View answer & explanation

Correct answer

Answer: (a)A.

xylem

Question 71

Direction: Adverb form of 'Active' is ________.

  1. AOption (a)

    Actively

  2. BOption (b)

    Activity

  3. COption (c)

    Act

  4. DOption (d)

    Action

View answer & explanation

Correct answer

Answer: (a)A.

Actively

Question 72

How many single bonds are present in methane?

  1. AOption (a)

    Six

  2. BOption (b)

    Four

  3. COption (c)

    Seven

  4. DOption (d)

    Five

View answer & explanation

Correct answer

Answer: (a)A.

Six

Question 73

Directions

Find the plural of the given word-**

'Thief'

  1. AOption (a)

    thievs

  2. BOption (b)

    thivee

  3. COption (c)

    thiefs

  4. DOption (d)

    thieves

View answer & explanation

Correct answer

Answer: (a)A.

thievs

Question 74

A man sold his furniture at a 25% gain. Had he sold at 15% loss. He would have received ₹ 800 less. Find cost price of the furniture.

  1. AOption (a)

    Rs. 1,500

  2. BOption (b)

    Rs. 3,000

  3. COption (c)

    Rs. 2,000

  4. DOption (d)

    Rs 2,500

View answer & explanation

Correct answer

Answer: (a)A.

Rs. 1,500

Question 75

A man sold an article at 20% profit. If he sold it for Rs. 1200. Find the cost price of the article?

  1. AOption (a)

    Rs. 900

  2. BOption (b)

    Rs. 1100

  3. COption (c)

    Rs. 1000

  4. DOption (d)

    Rs. 800

View answer & explanation

Correct answer

Answer: (a)A.

Rs. 900

Question 76

Which of these islands are located in the Arabian Sea?

  1. AOption (a)

    Andaman Islands

  2. BOption (b)

    Nicobar Islands

  3. COption (c)

    Lakshadweep Islands

  4. DOption (d)

    All of the above

View answer & explanation

Correct answer

Answer: (a)A.

Andaman Islands

Question 77

The law of inertia follows:

  1. AOption (a)

    Newton's first law of motion

  2. BOption (b)

    Newton's second law of motion

  3. COption (c)

    Newton's third law of motion

  4. DOption (d)

    All of the above

View answer & explanation

Correct answer

Answer: (a)A.

Newton's first law of motion

Question 78

Geeta bought a bag for Rs. 1,000 and spent Rs. 300 on fixing the defects in the bag. Later, she sold it for Rs. 1,508. What is the percentage of profit that Geeta earned through the sale?

  1. AOption (a)

    12%

  2. BOption (b)

    14%

  3. COption (c)

    18%

  4. DOption (d)

    16%

View answer & explanation

Correct answer

Answer: (a)A.

12%

Question 79

Citric acid is commonly found in ______.

  1. AOption (a)

    onions

  2. BOption (b)

    apples

  3. COption (c)

    oranges

  4. DOption (d)

    bananas

View answer & explanation

Correct answer

Answer: (a)A.

onions

Question 80

In a circle the Greek letter π is used to represent the ratio of ________.

  1. AOption (a)

    Circumference/Diameter

  2. BOption (b)

    Radius/Circumference

  3. COption (c)

    Diameter /Circumference

  4. DOption (d)

    Circumference/Radius 

View answer & explanation

Correct answer

Answer: (a)A.

Circumference/Diameter

Question 81

Which river finally falls into Arabian sea?

  1. AOption (a)

    Krishna

  2. BOption (b)

    Cauvery

  3. COption (c)

    Tapti

  4. DOption (d)

    Godavari

View answer & explanation

Correct answer

Answer: (a)A.

Krishna

Question 82

At ______ temperature, both the Fahrenheit and Centigrade scales have the same value. 

  1. AOption (a)

    -60° 

  2. BOption (b)

    -30° 

  3. COption (c)

    -40° 

  4. DOption (d)

    -50° 

View answer & explanation

Correct answer

Answer: (a)A.

-60° 

Question 83

If the length of a second's pendulum is doubled, what will be the time period (take the initial time period as 1 second)?

  1. AOption (a)

    3.82 sec

  2. BOption (b)

    2.82 sec

  3. COption (c)

    1.41 sec

  4. DOption (d)

    2.5 sec

View answer & explanation

Correct answer

Answer: (a)A.

3.82 sec

Question 84

Who discovered X-rays?

  1. AOption (a)

    Albert Einstein

  2. BOption (b)

    W.K. Roentgen

  3. COption (c)

    Ernest Rutherford

  4. DOption (d)

    J. J. Thomson

View answer & explanation

Correct answer

Answer: (a)A.

Albert Einstein

Question 85

Which one of the following is the lowest possible temperature?

  1. AOption (a)

    0° Celsius

  2. BOption (b)

    -073° Celsius

  3. COption (c)

    -173° Celsius

  4. DOption (d)

    -273° Celsius

View answer & explanation

Correct answer

Answer: (a)A.

0° Celsius

Question 86

Heat energy produced by sun reaches to earth due to __________.

  1. AOption (a)

    conduction

  2. BOption (b)

    convection

  3. COption (c)

    radiation

  4. DOption (d)

    Air

View answer & explanation

Correct answer

Answer: (a)A.

conduction

Question 87

The cooking Gas (LPG) mainly consists of

  1. AOption (a)

    Ethyne

  2. BOption (b)

    Butane

  3. COption (c)

    Propane

  4. DOption (d)

    Ethene

View answer & explanation

Correct answer

Answer: (a)A.

Ethyne

Question 88

Which acid is present in sour milk?

  1. AOption (a)

    Citric Acid

  2. BOption (b)

    Acetic Acid

  3. COption (c)

    Glycolic Acid

  4. DOption (d)

    Lactic Acid

View answer & explanation

Correct answer

Answer: (a)A.

Citric Acid

Question 89

The percentage of pure gold in 18-carat gold is ______.

  1. AOption (a)

    60%

  2. BOption (b)

    75%

  3. COption (c)

    80%

  4. DOption (d)

    100%

View answer & explanation

Correct answer

Answer: (a)A.

60%

Question 90

Heavy water is _____

  1. AOption (a)

    water, in which soap does not lather

  2. BOption (b)

    compound of heavy oxygen and heavy hydrogen

  3. COption (c)

    compound of deuterium and oxygen

  4. DOption (d)

    water at 4°C

View answer & explanation

Correct answer

Answer: (a)A.

water, in which soap does not lather

Question 91

Which of the following is an example of the compound?

  1. AOption (a)

    Manganese

  2. BOption (b)

    Air

  3. COption (c)

    Ozone

  4. DOption (d)

    Ammonia gas

View answer & explanation

Correct answer

Answer: (a)A.

Manganese

Question 92

What is laughing gas?

  1. AOption (a)

    Nitrous Oxide

  2. BOption (b)

    Carbon Monoxide

  3. COption (c)

    Sulphur Dioxide

  4. DOption (d)

    Hydrogen Peroxide

View answer & explanation

Correct answer

Answer: (a)A.

Nitrous Oxide

Question 93

Plaster of Paris is a product of

  1. AOption (a)

    Magnesium

  2. BOption (b)

    Aluminum

  3. COption (c)

    Calcium

  4. DOption (d)

    Sodium

View answer & explanation

Correct answer

Answer: (a)A.

Magnesium

Question 94

Which of the following compound is known as caustic soda?

  1. AOption (a)

    NaOH

  2. BOption (b)

    NaHCO3

  3. COption (c)

    NaCl

  4. DOption (d)

    Na2CO3

View answer & explanation

Correct answer

Answer: (a)A.

NaOH

Question 95

A mirror producing a virtual image larger than the object is:

  1. AOption (a)

    plane

  2. BOption (b)

    concave

  3. COption (c)

    convex

  4. DOption (d)

    spherical

View answer & explanation

Correct answer

Answer: (a)A.

plane

Question 96

Which of the following is not a characteristic of 'solid'?

  1. AOption (a)

    A solid has a fixed volume.

  2. BOption (b)

    Solids can be compressed easily.

  3. COption (c)

    Solids can break when subjected to force.

  4. DOption (d)

    It is difficult to change the shape of solids, so they are hard

View answer & explanation

Correct answer

Answer: (a)A.

A solid has a fixed volume.

Question 97

Humidity of air is measured by________.

  1. AOption (a)

    Hygrometer

  2. BOption (b)

    Nanometer

  3. COption (c)

    Glucometer

  4. DOption (d)

    Barometer

View answer & explanation

Correct answer

Answer: (a)A.

Hygrometer

Question 98

What is the CGS unit of temperature?

  1. AOption (a)

    Kelvin

  2. BOption (b)

    Reaumur

  3. COption (c)

    Celsius

  4. DOption (d)

    Fahrenheit

View answer & explanation

Correct answer

Answer: (a)A.

Kelvin

Question 99

The green colours seen in the fireworks is due to the presence of ________.

  1. AOption (a)

    Sodium

  2. BOption (b)

    Barium

  3. COption (c)

    Chromium

  4. DOption (d)

    Strontium

View answer & explanation

Correct answer

Answer: (a)A.

Sodium

Question 100

Which of the following has least percentage of carbon:

  1. AOption (a)

    Malleable iron

  2. BOption (b)

    Pig iron

  3. COption (c)

    Stainless steel

  4. DOption (d)

    Wrought iron

View answer & explanation

Correct answer

Answer: (a)A.

Malleable iron

100 questions in the full paper