Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. What is the shape of the s orbital? (2021) 2021
A.
Spherical
B.
Dumbbell
C.
Double dumbbell
D.
Linear
Show solution
Solution
The s orbital has a spherical shape.
Correct Answer:
A
— Spherical
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Q. What is the shape of the water molecule (H2O)?
A.
Linear
B.
Bent
C.
Trigonal planar
D.
Tetrahedral
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Solution
The water molecule has a bent shape due to the two lone pairs on the oxygen atom.
Correct Answer:
B
— Bent
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Q. What is the shear modulus of a material if a shear stress of 100 MPa produces a shear strain of 0.05? (2021)
A.
2000 MPa
B.
500 MPa
C.
1000 MPa
D.
1500 MPa
Show solution
Solution
Shear modulus (G) = Shear stress / Shear strain = 100 MPa / 0.05 = 2000 MPa.
Correct Answer:
A
— 2000 MPa
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Q. What is the shear modulus of a material if a shear stress of 100 MPa produces a shear strain of 0.02? (2022)
A.
5000 MPa
B.
2000 MPa
C.
1000 MPa
D.
2500 MPa
Show solution
Solution
Shear modulus (G) = Shear stress / Shear strain = 100 MPa / 0.02 = 5000 MPa.
Correct Answer:
A
— 5000 MPa
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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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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 'cost-benefit analysis' in resource allocation? (2023)
A.
It helps in determining the most equitable distribution of resources.
B.
It evaluates the financial implications of resource allocation decisions.
C.
It assesses the potential benefits against the costs of a decision.
D.
It ensures that all stakeholders are satisfied with the allocation.
Show solution
Solution
Cost-benefit analysis is significant as it assesses the potential benefits against the costs of a decision, making option 2 the correct answer.
Correct Answer:
C
— It assesses the potential benefits against the costs of a decision.
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Q. What is the significance of 'graph theory' in modern mathematics?
A.
It is only applicable in theoretical mathematics.
B.
It helps in understanding relationships and networks.
C.
It is irrelevant to real-world applications.
D.
It focuses solely on linear equations.
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Solution
Graph theory is significant as it helps in understanding relationships and networks, which are prevalent in various fields.
Correct Answer:
B
— It helps in understanding relationships and networks.
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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 'probability theory' in modern mathematics?
A.
It is used exclusively in statistics.
B.
It helps in making predictions based on data.
C.
It is irrelevant to real-world applications.
D.
It only applies to discrete events.
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Solution
Probability theory is significant as it helps in making predictions based on data, applicable in various fields including statistics and finance.
Correct Answer:
B
— It helps in making predictions based on data.
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Q. What is the significance of 'resource allocation models' in decision-making?
A.
They provide a framework for evaluating the effectiveness of resource use.
B.
They eliminate the need for strategic planning.
C.
They focus solely on financial metrics.
D.
They are only applicable in large organizations.
Show solution
Solution
Resource allocation models help evaluate the effectiveness of resource use, making option 0 the best answer.
Correct Answer:
A
— They provide a framework for evaluating the effectiveness of resource use.
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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.
Show solution
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.
Show solution
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 analyzing previous years' question papers according to the passage?
A.
It helps in understanding the exam format.
B.
It is a waste of time.
C.
It only benefits students who are weak in math.
D.
It is not mentioned in the passage.
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Solution
Analyzing previous years' question papers helps students understand the exam format and types of questions asked.
Correct Answer:
A
— It helps in understanding the exam format.
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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
Show solution
Solution
August 15 is celebrated as Independence Day in India.
Correct Answer:
B
— Independence Day
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