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. A rigid body is rotating about a fixed axis with an angular velocity ω. If the moment of inertia of the body is I, what is the angular momentum of the body?
A.
Iω
B.
ω/I
C.
I/ω
D.
Iω^2
Solution
Angular momentum L = Iω, where I is the moment of inertia and ω is the angular velocity.
Q. A rigid body is rotating about a fixed axis. If the moment of inertia of the body is I and it is rotating with an angular velocity ω, what is its angular momentum?
A.
Iω
B.
I/ω
C.
Iω^2
D.
ω/I
Solution
Angular momentum L = Iω, where I is the moment of inertia and ω is the angular velocity.
Q. A rigid body rotates about a fixed axis with an angular velocity ω. If the moment of inertia of the body is I, what is the angular momentum of the body?
A.
Iω
B.
ω/I
C.
I/ω
D.
Iω^2
Solution
Angular momentum L = Iω, where I is the moment of inertia and ω is the angular velocity.
Q. A river basin has an area of 200 km². If the average rainfall is 1000 mm per year, what is the total volume of water received by the basin in a year?
A.
200 million m³
B.
100 million m³
C.
300 million m³
D.
400 million m³
Solution
Volume = Area × Rainfall = 200 km² × 1000 mm = 200 km² × 1 m = 200 million m³.
Q. A river basin has an area of 200 square kilometers. If the average rainfall is 800 mm per year, how much water (in cubic meters) falls on the basin annually? (2019)
A.
160000000 m³
B.
200000000 m³
C.
240000000 m³
D.
320000000 m³
Solution
Water volume = Area × Rainfall = 200 km² × 800 mm = 200000000 m³.
Q. A river basin has an area of 2000 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
A.
1.6 billion m³
B.
1.2 billion m³
C.
1 billion m³
D.
800 million m³
Solution
Volume = Area × Rainfall = 2000 km² × 0.8 m = 1.6 billion m³.
Q. A river basin has an area of 500 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in a year? (2019)
A.
400,000,000 m³
B.
500,000,000 m³
C.
600,000,000 m³
D.
700,000,000 m³
Solution
Volume = area × rainfall = 500 km² × 800 mm = 500,000,000 m³.
Q. A river flows through a region with a soil erosion rate of 5 tons per hectare per year. If the area of the watershed is 100 hectares, how much soil is eroded in a year?
Q. A river flows through a region with a soil retention capacity of 20% of its volume. If the river has a volume of 1000 m³, how much water can be retained by the soil? (2023)
A.
100 m³
B.
200 m³
C.
300 m³
D.
400 m³
Solution
Water retained = 20% of 1000 m³ = 0.2 × 1000 m³ = 200 m³.
Q. A river flows through a valley with a gradient of 1 in 1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2023)
A.
Yes
B.
No
C.
Not enough information
D.
Depends on the soil type
Solution
Gradient = Rise / Run = 2 m / 2000 m = 1 in 1000, so it is consistent.
Q. A river flows through a valley with a gradient of 1:1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2022)
A.
Yes
B.
No
C.
Not enough information
D.
Depends on the soil type
Solution
Gradient = Rise / Run = 2 m / 2000 m = 1:1000, so it is consistent.
Q. A river has a length of 150 km and a width of 50 m. If the average depth is 3 m, what is the approximate volume of water in the river in cubic meters?
A.
22500000
B.
2250000
C.
15000000
D.
30000000
Solution
Volume = Length × Width × Depth = 150000 m × 50 m × 3 m = 22500000 m³.
