Q. What is the product of the roots of the quadratic equation x² - 5x + 6 = 0? (2019)
Solution
The product of the roots of ax² + bx + c = 0 is c/a. Here, product = 6/1 = 6.
Correct Answer:
A
— 6
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Q. What is the projected economic growth rate for India in 2024 according to the IMF? (2024)
-
A.
5.5%
-
B.
6.0%
-
C.
6.5%
-
D.
7.0%
Solution
The IMF projects India's economic growth rate to be around 6.5% for the year 2024.
Correct Answer:
C
— 6.5%
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Q. What is the projected fiscal deficit of India for the year 2023? (2023)
-
A.
4.5%
-
B.
5.0%
-
C.
5.5%
-
D.
6.0%
Solution
The projected fiscal deficit of India for the year 2023 is around 5.5%.
Correct Answer:
C
— 5.5%
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Q. What is the projected population of India by the end of 2023? (2023)
-
A.
1.4 billion
-
B.
1.5 billion
-
C.
1.6 billion
-
D.
1.3 billion
Solution
The projected population of India by the end of 2023 is approximately 1.4 billion.
Correct Answer:
A
— 1.4 billion
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Q. What is the recommended daily intake of fiber for adults?
-
A.
10-15 grams
-
B.
20-25 grams
-
C.
25-30 grams
-
D.
30-35 grams
Solution
The recommended daily intake of fiber for adults is 25-30 grams to maintain digestive health.
Correct Answer:
C
— 25-30 grams
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Q. What is the recommended daily intake of fruits and vegetables for a healthy diet?
-
A.
1-2 servings
-
B.
3-5 servings
-
C.
5-7 servings
-
D.
7-10 servings
Solution
The recommended daily intake is 5-7 servings of fruits and vegetables for optimal health.
Correct Answer:
B
— 3-5 servings
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Q. What is the recommended daily intake of fruits and vegetables for adults?
-
A.
1-2 servings
-
B.
3-5 servings
-
C.
5-7 servings
-
D.
7-10 servings
Solution
The recommended daily intake of fruits and vegetables for adults is 5-7 servings to ensure adequate nutrient intake.
Correct Answer:
B
— 3-5 servings
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Q. What is the recommended daily intake of protein for an average adult? (2019)
-
A.
30 grams
-
B.
50 grams
-
C.
70 grams
-
D.
100 grams
Solution
The recommended daily intake of protein for an average adult is about 50 grams.
Correct Answer:
B
— 50 grams
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Q. What is the relationship between the amplitude of a sound wave and its loudness?
-
A.
Directly proportional
-
B.
Inversely proportional
-
C.
No relationship
-
D.
Exponential relationship
Solution
The loudness of a sound is directly proportional to the amplitude of the sound wave.
Correct Answer:
A
— Directly proportional
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Q. What is the resistance of a wire of length 2 m and cross-sectional area 1 mm² if the resistivity of the material is 1.7 x 10^-8 Ωm?
-
A.
0.034 Ω
-
B.
0.017 Ω
-
C.
0.068 Ω
-
D.
0.085 Ω
Solution
Resistance R = ρ * (L/A). Here, R = (1.7 x 10^-8 Ωm) * (2 m / (1 x 10^-6 m²)) = 0.034 Ω.
Correct Answer:
A
— 0.034 Ω
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Q. What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH?
-
A.
pH < 7
-
B.
pH = 7
-
C.
pH > 7
-
D.
Cannot be determined
Solution
Mixing equal volumes of 0.1 M HCl and 0.1 M NaOH results in a neutral solution with pH = 7.
Correct Answer:
B
— pH = 7
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Q. What is the role of antioxidants in nutrition? (2022)
-
A.
Energy production
-
B.
Cell protection
-
C.
Muscle growth
-
D.
Hormone regulation
Solution
Antioxidants play a role in cell protection by neutralizing free radicals that can cause cellular damage.
Correct Answer:
B
— Cell protection
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Q. What is the role of auxins in plant growth?
-
A.
Promote flowering
-
B.
Stimulate root growth
-
C.
Inhibit growth
-
D.
Promote cell elongation
Solution
Auxins are plant hormones that promote cell elongation, which is crucial for growth and development in plants.
Correct Answer:
D
— Promote cell elongation
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Q. What is the role of enzymes in biological reactions? (2023)
-
A.
Increase temperature
-
B.
Decrease activation energy
-
C.
Change the pH
-
D.
Provide energy
Solution
Enzymes act as catalysts that lower the activation energy required for biochemical reactions, thus speeding them up.
Correct Answer:
B
— Decrease activation energy
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Q. What is the role of ribosomes in a cell?
-
A.
Energy production
-
B.
Protein synthesis
-
C.
DNA replication
-
D.
Cell division
Solution
Ribosomes are the sites of protein synthesis, translating mRNA into polypeptide chains.
Correct Answer:
B
— Protein synthesis
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Q. What is the role of the circulatory system? (2019)
-
A.
To break down food
-
B.
To transport nutrients and oxygen
-
C.
To produce hormones
-
D.
To protect against diseases
Solution
The circulatory system's role is to transport nutrients, oxygen, and hormones to cells and remove waste products.
Correct Answer:
B
— To transport nutrients and oxygen
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Q. What is the role of the endoplasmic reticulum?
-
A.
Energy production
-
B.
Synthesis of lipids and proteins
-
C.
Storage of genetic information
-
D.
Cell division
Solution
The endoplasmic reticulum is involved in the synthesis of lipids and proteins.
Correct Answer:
B
— Synthesis of lipids and proteins
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Q. What is the role of the Golgi apparatus in the cell?
-
A.
Energy production
-
B.
Modification and packaging of proteins
-
C.
Cell division
-
D.
Photosynthesis
Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or use within the cell.
Correct Answer:
B
— Modification and packaging of proteins
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Q. What is the role of the respiratory system?
-
A.
To break down food
-
B.
To exchange gases
-
C.
To circulate blood
-
D.
To protect against pathogens
Solution
The respiratory system is responsible for the exchange of gases, primarily oxygen and carbon dioxide, between the body and the environment.
Correct Answer:
B
— To exchange gases
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Q. What is the role of xylem in plants?
-
A.
Transport of nutrients
-
B.
Transport of water
-
C.
Photosynthesis
-
D.
Storage of food
Solution
Xylem is responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer:
B
— Transport of water
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Q. What is the shape of an s orbital? (2023)
-
A.
Spherical
-
B.
Dumbbell
-
C.
Double dumbbell
-
D.
Linear
Solution
The s orbital has a spherical shape.
Correct Answer:
A
— Spherical
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Q. What is the significance of August 15 in India?
-
A.
Constitution Day
-
B.
Independence Day
-
C.
Republic Day
-
D.
Gandhi Jayanti
Solution
August 15 is celebrated as Independence Day in India.
Correct Answer:
B
— Independence Day
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Q. What is the slope of the line represented by the equation y = 2x + 3?
Solution
The slope of the line in the equation y = mx + b is m, which is 2.
Correct Answer:
B
— 2
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Q. What is the slope of the line represented by the equation y = 3x + 2? (2021)
Solution
In the equation y = mx + b, m is the slope. Here, m = 3.
Correct Answer:
A
— 3
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Q. What is the specific heat capacity of a substance if 500 J of heat is required to raise the temperature of 2 kg of the substance by 10°C? (2021)
-
A.
25 J/kg°C
-
B.
50 J/kg°C
-
C.
75 J/kg°C
-
D.
100 J/kg°C
Solution
Specific heat capacity (c) = Q / (m * ΔT) = 500 J / (2 kg * 10°C) = 25 J/kg°C.
Correct Answer:
B
— 50 J/kg°C
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Q. What is the sum of the first five prime numbers?
Solution
The first five prime numbers are 2, 3, 5, 7, and 11. Their sum is 2 + 3 + 5 + 7 + 11 = 28.
Correct Answer:
A
— 28
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Q. What is the sum of the interior angles of a pentagon?
-
A.
360°
-
B.
540°
-
C.
720°
-
D.
180°
Solution
The sum of the interior angles of a polygon is given by (n-2) * 180°, where n is the number of sides. For a pentagon, n = 5, so (5-2) * 180° = 540°.
Correct Answer:
B
— 540°
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Q. What is the term duration for a member of the Rajya Sabha?
-
A.
3 years
-
B.
5 years
-
C.
6 years
-
D.
4 years
Solution
Members of the Rajya Sabha serve a term of 6 years, with one-third of the members retiring every two years.
Correct Answer:
C
— 6 years
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Q. What is the term for a large body of saltwater that is smaller than an ocean? (2019)
-
A.
Sea
-
B.
Lake
-
C.
River
-
D.
Bay
Solution
A large body of saltwater that is smaller than an ocean is called a sea.
Correct Answer:
A
— Sea
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Q. What is the term for the amount of water vapor present in the air?
-
A.
Humidity
-
B.
Precipitation
-
C.
Evaporation
-
D.
Condensation
Solution
Humidity refers to the amount of water vapor present in the air.
Correct Answer:
A
— Humidity
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