Q. What is the magnetic field strength at the center of a circular loop of radius 0.1 m carrying a current of 5 A?
A.
0.1 T
B.
0.2 T
C.
0.5 T
D.
1 T
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Solution
The magnetic field at the center of a circular loop is given by B = (μ₀ * I) / (2 * R). Using μ₀ = 4π x 10^-7 Tm/A, B = (4π x 10^-7 * 5) / (2 * 0.1) = 0.1 T.
Correct Answer: B — 0.2 T
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Q. What is the magnetic field strength at the center of a circular loop of radius r carrying a current I?
A.
μ0I/2r
B.
μ0I/r
C.
μ0I/4r
D.
μ0I/πr
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Solution
The magnetic field at the center of a circular loop is given by B = (μ0I)/(2r).
Correct Answer: B — μ0I/r
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Q. What is the main component of the Earth's mantle? (2019)
A.
Silicate minerals
B.
Iron
C.
Nickel
D.
Water
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Solution
The Earth's mantle is mainly composed of silicate minerals, which include olivine and pyroxene.
Correct Answer: A — Silicate minerals
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Q. What is the main difference between a liquid and a gas?
A.
Shape
B.
Volume
C.
Density
D.
All of the above
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Solution
Liquids have a definite volume and take the shape of their container, while gases have neither a definite shape nor volume.
Correct Answer: D — All of the above
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Q. What is the main factor that determines the climate of a region?
A.
Altitude
B.
Latitude
C.
Longitude
D.
Proximity to water bodies
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Solution
Latitude is the main factor that determines the climate of a region.
Correct Answer: B — Latitude
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Q. What is the main feature of the Atal Pension Yojana? (2015)
A.
To provide loans to farmers
B.
To offer a guaranteed pension to workers in the unorganized sector
C.
To promote digital payments
D.
To enhance women's savings
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Solution
The Atal Pension Yojana offers a guaranteed pension to workers in the unorganized sector, ensuring financial security in old age.
Correct Answer: B — To offer a guaranteed pension to workers in the unorganized sector
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Q. What is the main focus of the Beti Bachao Beti Padhao scheme?
A.
To promote women's entrepreneurship
B.
To improve the sex ratio and promote education for girls
C.
To provide financial aid for women's health
D.
To enhance women's political participation
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Solution
The Beti Bachao Beti Padhao scheme focuses on improving the child sex ratio and promoting education for girls.
Correct Answer: B — To improve the sex ratio and promote education for girls
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Q. What is the main function of dietary fiber in nutrition?
A.
Energy production
B.
Regulating blood sugar
C.
Promoting digestion
D.
Building muscle
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Solution
Dietary fiber promotes digestion by aiding in the movement of food through the digestive tract.
Correct Answer: C — Promoting digestion
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Q. What is the main function of the digestive system?
A.
To provide energy
B.
To absorb nutrients
C.
To circulate blood
D.
To regulate temperature
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Solution
The digestive system breaks down food into nutrients, which are then absorbed into the bloodstream for energy.
Correct Answer: B — To absorb nutrients
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Q. What is the main goal of the Pradhan Mantri Gram Sadak Yojana (PMGSY)? (2000)
A.
To provide electricity to rural areas
B.
To improve road connectivity in rural areas
C.
To enhance internet access in villages
D.
To promote rural tourism
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Solution
The main goal of PMGSY is to improve road connectivity in rural areas, facilitating better access to markets and services.
Correct Answer: B — To improve road connectivity in rural areas
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Q. What is the main goal of the Skill India Mission?
A.
To provide free education
B.
To enhance the skill sets of the youth
C.
To promote entrepreneurship
D.
To ensure food security
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Solution
The Skill India Mission aims to enhance the skill sets of the youth to make them employable and promote entrepreneurship.
Correct Answer: B — To enhance the skill sets of the youth
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Q. What is the main objective of the Pradhan Mantri Awas Yojana (PMAY)? (2016)
A.
To provide free education to all children
B.
To provide affordable housing to the urban poor
C.
To promote digital literacy
D.
To enhance agricultural productivity
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Solution
The Pradhan Mantri Awas Yojana aims to provide affordable housing to the urban poor, ensuring that everyone has access to a home.
Correct Answer: B — To provide affordable housing to the urban poor
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Q. What is the main product of photosynthesis?
A.
Oxygen
B.
Glucose
C.
Carbon dioxide
D.
Water
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Solution
The main product of photosynthesis is glucose, which serves as an energy source for the plant.
Correct Answer: B — Glucose
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Q. What is the main product of the thermal decomposition of calcium carbonate (CaCO3)? (2019)
A.
Calcium oxide (CaO)
B.
Carbon dioxide (CO2)
C.
Calcium hydroxide (Ca(OH)2)
D.
Calcium carbide (CaC2)
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Solution
The thermal decomposition of calcium carbonate produces calcium oxide (CaO) and carbon dioxide (CO2).
Correct Answer: A — Calcium oxide (CaO)
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Q. What is the main product when an alcohol is oxidized?
A.
Alkane
B.
Aldehyde
C.
Ketone
D.
Carboxylic acid
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Solution
The oxidation of a primary alcohol typically produces a carboxylic acid.
Correct Answer: D — Carboxylic acid
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Q. What is the main reason for the occurrence of seasons on Earth?
A.
Distance from the Sun
B.
Tilt of the Earth's axis
C.
Revolution around the Sun
D.
Rotation of the Earth
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Solution
The main reason for the occurrence of seasons on Earth is the tilt of the Earth's axis, which affects the angle of sunlight received.
Correct Answer: B — Tilt of the Earth's axis
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Q. What is the maximum number of Fundamental Rights guaranteed by the Constitution of India?
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Solution
The Constitution of India originally provided for 7 Fundamental Rights, but the Right to Property was removed from the list, leaving 6 Fundamental Rights.
Correct Answer: B — 7
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Q. What is the maximum number of Fundamental Rights recognized by the Constitution of India? (2021)
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Solution
The Constitution of India recognizes 6 Fundamental Rights.
Correct Answer: A — 6
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Q. What is the maximum strength of the Lok Sabha as per the Constitution?
A.
500
B.
550
C.
600
D.
450
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Solution
The maximum strength of the Lok Sabha is 552, which includes 530 members from the states and 20 from the Union territories.
Correct Answer: B — 550
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Q. What is the meaning of the idiom 'a blessing in disguise'? (2022)
A.
A misfortune that results in something good
B.
A hidden danger
C.
A false promise
D.
A secret gift
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Solution
'A blessing in disguise' refers to something that seems bad at first but results in something good.
Correct Answer: A — A misfortune that results in something good
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Q. What is the meaning of the idiom 'costs an arm and a leg'? (2020)
A.
Very expensive
B.
Very cheap
C.
Very difficult
D.
Very easy
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Solution
'Costs an arm and a leg' means something is very expensive.
Correct Answer: A — Very expensive
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Q. What is the meaning of the idiom 'once in a blue moon'? (2022)
A.
Very rarely
B.
Very often
C.
Every month
D.
Every year
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Solution
'Once in a blue moon' means something that happens very rarely.
Correct Answer: A — Very rarely
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Q. What is the meaning of the idiom 'spill the beans'? (2019)
A.
To reveal a secret
B.
To waste resources
C.
To make a mess
D.
To cook poorly
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Solution
'Spill the beans' means to disclose confidential information or secrets.
Correct Answer: A — To reveal a secret
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Q. What is the meaning of the idiom 'the ball is in your court'? (2020)
A.
It is your turn to make a decision
B.
You are in trouble
C.
You are being watched
D.
You are not responsible
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Solution
'The ball is in your court' means it is your responsibility to take action or make a decision.
Correct Answer: A — It is your turn to make a decision
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Q. What is the meaning of the idiom 'to break the ice'? (2021)
A.
To start a conversation in a social setting
B.
To cause a delay
C.
To make a mistake
D.
To end a relationship
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Solution
'To break the ice' means to initiate conversation in a social situation, especially among strangers.
Correct Answer: A — To start a conversation in a social setting
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Q. What is the meaning of the phrase 'let the cat out of the bag'? (2023)
A.
To reveal a secret
B.
To adopt a pet
C.
To be careless
D.
To lose something
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Solution
'Let the cat out of the bag' means to accidentally reveal a secret.
Correct Answer: A — To reveal a secret
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Q. What is the measure of each angle in a regular hexagon? (2019)
A.
120 degrees
B.
90 degrees
C.
60 degrees
D.
150 degrees
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Solution
The measure of each interior angle in a regular hexagon can be calculated using the formula (n-2) * 180/n, where n is the number of sides. For a hexagon, n=6, so the measure is (6-2) * 180/6 = 120 degrees.
Correct Answer: A — 120 degrees
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Q. What is the measure of each angle in a regular quadrilateral? (2019)
A.
90 degrees
B.
60 degrees
C.
120 degrees
D.
180 degrees
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Solution
A regular quadrilateral is a square, and each angle in a square measures 90 degrees.
Correct Answer: A — 90 degrees
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Q. What is the measure of the exterior angle of a triangle if the interior angles are 50 degrees and 60 degrees? (2021)
A.
70 degrees
B.
80 degrees
C.
90 degrees
D.
100 degrees
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Solution
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. Therefore, the exterior angle = 50 + 60 = 110 degrees.
Correct Answer: B — 80 degrees
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Q. What is the measure of the exterior angle of a triangle if the two interior opposite angles are 50 degrees and 60 degrees? (2023)
A.
110 degrees
B.
100 degrees
C.
120 degrees
D.
130 degrees
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Solution
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. Therefore, the exterior angle = 50 + 60 = 110 degrees.
Correct Answer: A — 110 degrees
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