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. During which phase of respiration does oxygen enter the bloodstream? (2019)
A.
Inhalation
B.
Exhalation
C.
Expiration
D.
Inspiration
Show solution
Solution
Oxygen enters the bloodstream during inhalation when air is drawn into the lungs and diffuses across the alveolar membrane.
Correct Answer:
A
— Inhalation
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Q. During which phase of respiration does the diaphragm relax? (2023)
A.
Inhalation
B.
Exhalation
C.
Gas exchange
D.
Oxygen transport
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Solution
During exhalation, the diaphragm relaxes, causing the thoracic cavity to decrease in volume and air to be expelled from the lungs.
Correct Answer:
B
— Exhalation
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Q. During which phase of the menstrual cycle does ovulation occur? (2020)
A.
Follicular phase
B.
Luteal phase
C.
Menstrual phase
D.
Ovulatory phase
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Solution
Ovulation occurs during the ovulatory phase of the menstrual cycle when an egg is released from the ovary.
Correct Answer:
D
— Ovulatory phase
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Q. During which phase of the menstrual cycle does the endometrium thicken? (2020)
A.
Follicular phase
B.
Ovulation phase
C.
Luteal phase
D.
Menstrual phase
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Solution
The endometrium thickens during the luteal phase of the menstrual cycle in preparation for a potential pregnancy.
Correct Answer:
C
— Luteal phase
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Q. During which stage of development does the embryo implant into the uterine wall? (2022)
A.
Fertilization
B.
Cleavage
C.
Gastrulation
D.
Blastocyst stage
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Solution
The embryo implants into the uterine wall during the blastocyst stage of development.
Correct Answer:
D
— Blastocyst stage
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Q. E and F invest in a project with E investing $5000 and F investing $7000. If the profit is $4000, how much does E earn?
A.
$2000
B.
$1500
C.
$2500
D.
$3000
Show solution
Solution
Total investment = 5000 + 7000 = 12000. E's share = (5000/12000) * 4000 = $1666.67, rounded to $2500.
Correct Answer:
C
— $2500
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Q. E, F, and G invest in a project with E investing $12,000, F $8,000, and G $10,000. If the profit is $6,000, how much does F get?
A.
$1,500
B.
$1,200
C.
$1,800
D.
$2,000
Show solution
Solution
F's share = (8,000 / (12,000 + 8,000 + 10,000)) * 6,000 = (8,000 / 30,000) * 6,000 = $1,600.
Correct Answer:
A
— $1,500
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Q. E, F, and G invest in a project with E investing $5000, F $7000, and G $3000. If the total profit is $4000, how much does E receive?
A.
$1000
B.
$2000
C.
$1500
D.
$2500
Show solution
Solution
Total investment = 5000 + 7000 + 3000 = 15000. E's share = (5000/15000) * 4000 = $1000.
Correct Answer:
B
— $2000
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Q. E, F, and G invest in a project with E investing $5000, F $7000, and G $8000. If the profit is $4000, how much does F receive?
A.
$1200
B.
$1400
C.
$1600
D.
$1800
Show solution
Solution
Total investment = 5000 + 7000 + 8000 = 20000. F's share = (7000/20000) * 4000 = $1400.
Correct Answer:
C
— $1600
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Q. E, F, and G invest in a project with investments of $5000, $3000, and $2000 respectively. If the profit is $2400, what is G's share?
A.
$400
B.
$600
C.
$800
D.
$500
Show solution
Solution
Total investment = 5000 + 3000 + 2000 = 10000. G's share = (2000/10000) * 2400 = $480.
Correct Answer:
B
— $600
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Q. E, F, and G invest in a project with investments of $5000, $3000, and $2000 respectively. If the profit is $2400, how much does F receive?
A.
$1200
B.
$800
C.
$600
D.
$1000
Show solution
Solution
Total investment = 5000 + 3000 + 2000 = 10000. F's share = (3000/10000) * 2400 = $720.
Correct Answer:
A
— $1200
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Q. E, F, and G invest in a project with investments of $5000, $7000, and $8000 respectively. If the profit is $4000, what is G's share?
A.
$1600
B.
$2000
C.
$1800
D.
$2200
Show solution
Solution
Total investment = 5000 + 7000 + 8000 = 20000. G's share = (8000/20000) * 4000 = $1600.
Correct Answer:
B
— $2000
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Q. Each of the students have completed their assignments. (2023)
A.
Correct
B.
Incorrect
C.
Depends on context
D.
None of the above
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Solution
The correct form is 'Each of the students has completed their assignments.' 'Each' is singular, so it should be followed by 'has'.
Correct Answer:
B
— Incorrect
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Q. Each of the students have completed their homework. (2019)
A.
Each of the students has completed their homework.
B.
Each of the students have completed his homework.
C.
All of the students have completed their homework.
D.
Each of the student has completed their homework.
Show solution
Solution
The subject 'Each' is singular, so it should be 'has'.
Correct Answer:
A
— Each of the students has completed their homework.
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Q. Either the cat or the dogs is making noise. (2023)
A.
Correct
B.
Incorrect
C.
Depends on context
D.
None of the above
Show solution
Solution
The correct form is 'Either the cat or the dogs are making noise.' The verb agrees with the nearest subject 'dogs', which is plural.
Correct Answer:
B
— Incorrect
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Q. Ethylene is produced in response to which of the following conditions? (2023)
A.
High light intensity
B.
Low oxygen levels
C.
High humidity
D.
Low temperature
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Solution
Ethylene is produced in response to low oxygen levels, particularly during stress conditions like flooding.
Correct Answer:
B
— Low oxygen levels
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Q. Evaluate cos(tan^(-1)(1)).
A.
√2/2
B.
1/√2
C.
1
D.
0
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Solution
Let θ = tan^(-1)(1). Then, cos(θ) = 1/√(1 + tan^2(θ)) = 1/√(1 + 1) = 1/√2.
Correct Answer:
A
— √2/2
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Q. Evaluate cos(tan^(-1)(3/4)).
A.
4/5
B.
3/5
C.
5/4
D.
3/4
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Solution
Using the triangle with opposite = 3 and adjacent = 4, hypotenuse = 5. Thus, cos(tan^(-1)(3/4)) = 4/5.
Correct Answer:
A
— 4/5
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Q. Evaluate cos(tan^(-1)(5/12)).
A.
12/13
B.
5/13
C.
13/12
D.
5/12
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Solution
Using the right triangle definition, cos(tan^(-1)(5/12)) = adjacent/hypotenuse = 12/13.
Correct Answer:
A
— 12/13
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Solution
cos^(-1)(0) = π, since cos(π) = 0.
Correct Answer:
C
— π
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Q. Evaluate sin(cos^(-1)(1/2)).
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Solution
sin(cos^(-1)(1/2)) = √(1 - (1/2)^2) = √(3/4) = √3/2.
Correct Answer:
A
— √3/2
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Q. Evaluate sin(tan^(-1)(3/4)).
A.
3/5
B.
4/5
C.
1/5
D.
5/5
Show solution
Solution
Using the right triangle definition, sin(tan^(-1)(3/4)) = opposite/hypotenuse = 3/5.
Correct Answer:
A
— 3/5
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Q. Evaluate sin(tan^(-1)(x)).
A.
x/√(1+x^2)
B.
√(1-x^2)
C.
1/x
D.
x
Show solution
Solution
Using the identity, sin(tan^(-1)(x)) = x/√(1+x^2).
Correct Answer:
A
— x/√(1+x^2)
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Q. Evaluate sin^(-1)(-1/2) + cos^(-1)(1/2).
Show solution
Solution
sin^(-1)(-1/2) = -π/6 and cos^(-1)(1/2) = π/3. Therefore, -π/6 + π/3 = π/6.
Correct Answer:
B
— π/2
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Q. Evaluate sin^(-1)(sin(5π/6)).
A.
5π/6
B.
π/6
C.
7π/6
D.
0
Show solution
Solution
Since 5π/6 is in the range of sin^(-1), sin^(-1)(sin(5π/6)) = 5π/6.
Correct Answer:
A
— 5π/6
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Q. Evaluate sin^(-1)(sin(π/3)).
A.
π/3
B.
2π/3
C.
π/6
D.
0
Show solution
Solution
sin^(-1)(sin(π/3)) = π/3, since π/3 is in the range of sin^(-1).
Correct Answer:
A
— π/3
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Q. Evaluate sin^(-1)(sin(π/4)).
A.
π/4
B.
3π/4
C.
π/2
D.
0
Show solution
Solution
sin^(-1)(sin(π/4)) = π/4
Correct Answer:
A
— π/4
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Q. Evaluate sin^(-1)(√3/2) + cos^(-1)(1/2).
A.
π/3
B.
π/2
C.
π/4
D.
2π/3
Show solution
Solution
sin^(-1)(√3/2) + cos^(-1)(1/2) = π/2
Correct Answer:
B
— π/2
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Q. Evaluate tan(sin^(-1)(1/√2)).
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Solution
If sin(x) = 1/√2, then x = π/4, thus tan(sin^(-1)(1/√2)) = tan(π/4) = 1.
Correct Answer:
A
— 1
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Q. Evaluate tan(sin^(-1)(3/5)).
A.
3/4
B.
4/3
C.
5/3
D.
3/5
Show solution
Solution
Let θ = sin^(-1)(3/5). Then sin(θ) = 3/5 and using the Pythagorean theorem, cos(θ) = 4/5. Therefore, tan(θ) = sin(θ)/cos(θ) = (3/5)/(4/5) = 3/4.
Correct Answer:
B
— 4/3
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