Q. What is the shortcut key to create a new presentation in PowerPoint? (2023)
A.
Ctrl + N
B.
Ctrl + M
C.
Ctrl + P
D.
Ctrl + O
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Solution
The shortcut key 'Ctrl + N' is used to create a new presentation in PowerPoint.
Correct Answer: A — Ctrl + N
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Q. What is the SI unit of dynamic viscosity?
A.
Pascal-second
B.
Newton-second
C.
Kilogram-meter
D.
Joule-second
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Solution
The SI unit of dynamic viscosity is Pascal-second (Pa·s).
Correct Answer: A — Pascal-second
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Q. What is the SI unit of electric charge? (2020)
A.
Coulomb
B.
Ampere
C.
Volt
D.
Ohm
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Solution
The SI unit of electric charge is Coulomb (C).
Correct Answer: A — Coulomb
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Q. What is the SI unit of electric current? (2021)
A.
Volt
B.
Ohm
C.
Ampere
D.
Coulomb
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Solution
The SI unit of electric current is the Ampere (A).
Correct Answer: C — Ampere
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Q. What is the SI unit of energy? (2022)
A.
Joule
B.
Newton
C.
Watt
D.
Calorie
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Solution
The SI unit of energy is Joule (J).
Correct Answer: A — Joule
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Q. What is the SI unit of force?
A.
Newton
B.
Pascal
C.
Joule
D.
Watt
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Solution
The SI unit of force is Newton (N), which is defined as the force required to accelerate a 1 kg mass by 1 m/s².
Correct Answer: A — Newton
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Q. What is the SI unit of length?
A.
Meter
B.
Kilometer
C.
Centimeter
D.
Millimeter
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Solution
The SI unit of length is the meter.
Correct Answer: A — Meter
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Q. What is the SI unit of magnetic field strength? (2023)
A.
Tesla
B.
Weber
C.
Henry
D.
Ampere
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Solution
The SI unit of magnetic field strength is the Tesla (T).
Correct Answer: A — Tesla
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Q. What is the SI unit of magnetic moment? (2023)
A.
Ampere-meter
B.
Tesla
C.
Joule per Tesla
D.
Newton per Ampere
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Solution
The SI unit of magnetic moment is Joule per Tesla (J/T), which can also be expressed as Ampere-meter squared (A·m²).
Correct Answer: C — Joule per Tesla
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Q. What is the SI unit of power?
A.
Joule
B.
Watt
C.
Newton
D.
Pascal
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Solution
Power is defined as the rate at which work is done or energy is transferred. The SI unit of power is the Watt (W), which is equivalent to one Joule per second.
Correct Answer: B — Watt
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Q. What is the SI unit of pressure?
A.
Pascal
B.
Newton
C.
Joule
D.
Bar
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Solution
Pressure is defined as force per unit area, and its SI unit is Pascal (Pa).
Correct Answer: A — Pascal
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Q. What is the SI unit of temperature?
A.
Celsius
B.
Fahrenheit
C.
Kelvin
D.
Rankine
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Solution
The SI unit of temperature is Kelvin.
Correct Answer: C — Kelvin
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Q. What is the SI unit of thermal conductivity?
A.
W/m·K
B.
J/kg·K
C.
K/W
D.
J/m·s
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Solution
The SI unit of thermal conductivity is Watts per meter per Kelvin (W/m·K).
Correct Answer: A — W/m·K
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Q. What is the SI unit of time?
A.
Minute
B.
Hour
C.
Second
D.
Day
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Solution
The SI unit of time is the second.
Correct Answer: C — Second
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Q. What is the SI unit of viscosity?
A.
Pascal-second
B.
Newton-second
C.
Kilogram-meter per second
D.
Joule-second
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Solution
The SI unit of viscosity is Pascal-second (Pa·s), which is equivalent to Newton-second per square meter.
Correct Answer: A — Pascal-second
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Q. What is the significance of 'calculus' in modern mathematics?
A.
It is used exclusively for geometry.
B.
It provides tools for modeling change and motion.
C.
It is only applicable in theoretical mathematics.
D.
It simplifies basic arithmetic operations.
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Solution
Calculus is significant because it provides essential tools for modeling and understanding change and motion in various fields.
Correct Answer: B — It provides tools for modeling change and motion.
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Q. What is the significance of 'chaos theory' in modern mathematics?
A.
It deals with predictable systems.
B.
It studies complex systems that are highly sensitive to initial conditions.
C.
It simplifies mathematical models.
D.
It focuses solely on linear equations.
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Solution
Chaos theory is significant because it explores how small changes in initial conditions can lead to vastly different outcomes in complex systems.
Correct Answer: B — It studies complex systems that are highly sensitive to initial conditions.
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Q. What is the significance of 'mathematical modeling' in modern mathematics?
A.
It is used exclusively for theoretical research.
B.
It helps in representing real-world problems through mathematical expressions.
C.
It is only applicable in pure mathematics.
D.
It simplifies complex equations without any real-world application.
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Solution
Mathematical modeling is significant as it allows for the representation of real-world problems through mathematical expressions, facilitating analysis and solution finding.
Correct Answer: B — It helps in representing real-world problems through mathematical expressions.
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Q. What is the significance of 'resource constraints' in project planning?
A.
They help in identifying potential risks.
B.
They ensure that all projects are completed on time.
C.
They limit the scope of projects to fit available resources.
D.
They allow for more innovative project designs.
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Solution
Resource constraints limit the scope of projects to fit available resources, which is accurately described in option 2.
Correct Answer: C — They limit the scope of projects to fit available resources.
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Q. What is the significance of a negative ΔG in biochemical reactions?
A.
It indicates the reaction is reversible.
B.
It indicates the reaction is spontaneous.
C.
It indicates the reaction is at equilibrium.
D.
It indicates the reaction requires energy.
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Solution
A negative ΔG indicates that the biochemical reaction is spontaneous under the given conditions.
Correct Answer: B — It indicates the reaction is spontaneous.
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Q. What is the significance of biodiversity hotspots? (2020)
A.
They are areas with high pollution levels.
B.
They are regions with a high number of endemic species.
C.
They are places with low human activity.
D.
They are regions with abundant resources.
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Solution
Biodiversity hotspots are significant because they are regions with a high number of endemic species and are under threat from human activities.
Correct Answer: B — They are regions with a high number of endemic species.
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Q. What is the significance of biopesticides in agriculture? (2020)
A.
They are more toxic than chemical pesticides
B.
They are derived from natural materials
C.
They require more application frequency
D.
They are less effective than traditional pesticides
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Solution
Biopesticides are derived from natural materials and are considered safer for the environment compared to chemical pesticides.
Correct Answer: B — They are derived from natural materials
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Q. What is the significance of bioremediation in biotechnology? (2023)
A.
Production of biofuels
B.
Waste management
C.
Food production
D.
Genetic engineering
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Solution
Bioremediation is significant in biotechnology as it involves the use of microorganisms to clean up contaminated environments, thus aiding in waste management.
Correct Answer: B — Waste management
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Q. What is the significance of Bt cotton? (2020)
A.
It is resistant to drought
B.
It produces its own insecticide
C.
It has higher nutritional value
D.
It grows faster than normal cotton
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Solution
Bt cotton is genetically modified to produce a toxin that is harmful to specific pests, reducing the need for chemical insecticides.
Correct Answer: B — It produces its own insecticide
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Q. What is the significance of digital sum in data analysis as mentioned in the passage? (2023)
A.
It reduces the complexity of data sets.
B.
It enhances the accuracy of data interpretation.
C.
It simplifies the process of data storage.
D.
It increases the speed of data processing.
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Solution
The passage highlights that digital sum plays a crucial role in enhancing the accuracy of data interpretation.
Correct Answer: B — It enhances the accuracy of data interpretation.
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Q. What is the significance of historical context in understanding inequalities, according to the passage?
A.
It is irrelevant to current discussions.
B.
It provides insight into the roots of inequalities.
C.
It complicates the issue unnecessarily.
D.
It is only important for economic inequalities.
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Solution
The passage highlights that understanding historical context is essential for grasping the roots and persistence of inequalities.
Correct Answer: B — It provides insight into the roots of inequalities.
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Q. What is the significance of practicing with mock tests according to the passage?
A.
It helps in memorizing answers.
B.
It familiarizes candidates with the exam format.
C.
It guarantees a high score.
D.
It is the only preparation method needed.
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Solution
The passage highlights that mock tests are crucial for understanding the exam format and improving performance.
Correct Answer: B — It familiarizes candidates with the exam format.
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Q. What is the significance of prenatal care? (2023)
A.
To ensure the health of the mother and fetus
B.
To promote smoking during pregnancy
C.
To encourage unplanned pregnancies
D.
To avoid medical check-ups
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Solution
Prenatal care is crucial for monitoring the health of both the mother and the developing fetus, ensuring a healthy pregnancy.
Correct Answer: A — To ensure the health of the mother and fetus
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Q. What is the significance of setting clear roles and responsibilities in a team?
A.
To limit creativity
B.
To avoid accountability
C.
To enhance efficiency and reduce confusion
D.
To create hierarchy
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Solution
Setting clear roles and responsibilities enhances efficiency and reduces confusion, allowing team members to focus on their specific tasks.
Correct Answer: C — To enhance efficiency and reduce confusion
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Q. What is the significance of significant figures in a measurement? (2019)
A.
They indicate the precision of the measurement
B.
They indicate the accuracy of the measurement
C.
They are used for unit conversion
D.
They are irrelevant
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Solution
Significant figures indicate the precision of a measurement, reflecting the certainty of the digits.
Correct Answer: A — They indicate the precision of the measurement
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