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. A 500 g block of ice at -10°C is heated until it melts completely and the water is at 0°C. How much heat is required? (Specific heat of ice = 2.1 J/g°C, Latent heat of fusion = 334 J/g) (2000)
A.
1050 J
B.
1340 J
C.
1500 J
D.
2000 J
Show solution
Solution
Heat to raise ice to 0°C = 500g * 2.1 J/g°C * 10°C = 10500 J. Heat to melt = 500g * 334 J/g = 167000 J. Total = 1050 J + 167000 J = 1340 J.
Correct Answer:
B
— 1340 J
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Q. A 6 kg object is at rest on a horizontal surface. If a horizontal force of 12 N is applied, what is the acceleration assuming no friction?
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Using F = ma, acceleration a = F/m = 12 N / 6 kg = 2 m/s².
Correct Answer:
B
— 2 m/s²
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Q. A 6 kg object is dropped from a height. What is the force acting on it just before it hits the ground?
A.
6 N
B.
60 N
C.
12 N
D.
0 N
Show solution
Solution
The force acting on it is its weight, F = mg = 6 kg * 10 m/s² = 60 N.
Correct Answer:
B
— 60 N
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Q. A 6 kg object is in free fall. What is the force acting on it due to gravity?
A.
6 N
B.
60 N
C.
600 N
D.
0 N
Show solution
Solution
Force due to gravity F = mg = 6 kg * 10 m/s² = 60 N.
Correct Answer:
B
— 60 N
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Q. A 6 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
A.
27 J
B.
36 J
C.
54 J
D.
18 J
Show solution
Solution
Kinetic energy KE = 0.5 * m * v² = 0.5 * 6 kg * (3 m/s)² = 27 J.
Correct Answer:
B
— 36 J
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Q. A 6 kg object is pulled with a force of 24 N. What is the acceleration of the object?
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Using F = ma, a = F/m = 24 N / 6 kg = 4 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 6 kg object is pushed with a force of 18 N. What is the resulting acceleration? (2023)
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Using F = ma, a = F/m = 18 N / 6 kg = 3 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 6 kg object is subjected to a net force of 12 N. What is its acceleration?
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Using F = ma, acceleration a = F/m = 12 N / 6 kg = 2 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 60W bulb is connected to a 120V supply. What is the resistance of the bulb?
A.
240 ohms
B.
120 ohms
C.
60 ohms
D.
30 ohms
Show solution
Solution
Using P = V^2 / R, we rearrange to find R = V^2 / P = (120V)^2 / 60W = 240 ohms.
Correct Answer:
B
— 120 ohms
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Q. A 9V battery is connected to a circuit with a total resistance of 3Ω. What is the total current flowing in the circuit? (2023)
Show solution
Solution
Using Ohm's law, I = V/R = 9V / 3Ω = 3A.
Correct Answer:
B
— 2A
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Q. A and B are mixed in the ratio 1:3. If there are 48 liters of the mixture, how much of liquid A is there?
A.
12 liters
B.
16 liters
C.
18 liters
D.
20 liters
Show solution
Solution
In a 1:3 ratio, the total parts = 1 + 3 = 4. Liquid A = (1/4) * 48 = 12 liters.
Correct Answer:
B
— 16 liters
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Q. A and B are mixed in the ratio 1:4. If the total volume of the mixture is 100 liters, how many liters of liquid A are there?
A.
20 liters
B.
25 liters
C.
30 liters
D.
40 liters
Show solution
Solution
Total parts = 1 + 4 = 5. Volume of A = (1/5) * 100 = 20 liters.
Correct Answer:
A
— 20 liters
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Q. A and B are mixed in the ratio 1:4. If there are 100 liters of the mixture, how much of A is there?
A.
20 liters
B.
25 liters
C.
30 liters
D.
40 liters
Show solution
Solution
Total parts = 1 + 4 = 5. A = (1/5) * 100 = 20 liters.
Correct Answer:
A
— 20 liters
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Q. A and B are mixed in the ratio 1:4. If there are 15 liters of B, how much A is there?
A.
3 liters
B.
4 liters
C.
5 liters
D.
6 liters
Show solution
Solution
If B = 4 parts = 15L, then A = (1/4) * 15 = 3.75L.
Correct Answer:
A
— 3 liters
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Q. A and B are mixed in the ratio 2:3. If the total quantity of the mixture is 50 liters, how much of A is there?
A.
20 liters
B.
30 liters
C.
25 liters
D.
15 liters
Show solution
Solution
Total parts = 2 + 3 = 5. A's part = (2/5) * 50 = 20 liters.
Correct Answer:
A
— 20 liters
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Q. A and B are mixed in the ratio 2:3. If the total volume of the mixture is 50 liters, how much of liquid A is present?
A.
20 liters
B.
30 liters
C.
25 liters
D.
15 liters
Show solution
Solution
The total parts in the mixture is 2 + 3 = 5. Liquid A is (2/5) * 50 = 20 liters.
Correct Answer:
A
— 20 liters
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Q. A and B are mixed in the ratio 2:3. If the total volume of the mixture is 50 liters, how much of liquid B is there?
A.
20 liters
B.
30 liters
C.
25 liters
D.
35 liters
Show solution
Solution
Total parts = 2 + 3 = 5. Volume of B = (3/5) * 50 = 30 liters.
Correct Answer:
B
— 30 liters
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Q. A and B are mixed in the ratio 2:3. If the total volume of the mixture is 50 liters, how much of A is there?
A.
20 liters
B.
30 liters
C.
10 liters
D.
25 liters
Show solution
Solution
Total parts = 2 + 3 = 5. A = (2/5) * 50 = 20 liters.
Correct Answer:
A
— 20 liters
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Q. A and B are mixed in the ratio 2:3. If there are 30 liters of mixture, how much of A is there?
A.
12 liters
B.
18 liters
C.
20 liters
D.
15 liters
Show solution
Solution
In a 2:3 ratio, total parts = 2 + 3 = 5. A = (2/5) * 30 = 12 liters.
Correct Answer:
B
— 18 liters
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Q. A and B are mixed in the ratio 4:5. If the total volume of the mixture is 90 liters, how many liters of liquid B are there?
A.
40 liters
B.
50 liters
C.
45 liters
D.
30 liters
Show solution
Solution
Total parts = 4 + 5 = 9. Volume of B = (5/9) * 90 = 50 liters.
Correct Answer:
B
— 50 liters
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Q. A and B are mixed in the ratio 4:5. If the total volume of the mixture is 90 liters, how much of liquid B is present?
A.
40 liters
B.
50 liters
C.
45 liters
D.
30 liters
Show solution
Solution
Total parts = 4 + 5 = 9. Volume of B = (5/9) * 90 = 50 liters.
Correct Answer:
B
— 50 liters
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Q. A and B are mixed in the ratio 5:3. If there are 64 liters of the mixture, how much of liquid B is there?
A.
24 liters
B.
32 liters
C.
40 liters
D.
16 liters
Show solution
Solution
In a 5:3 ratio, the total parts = 5 + 3 = 8. Liquid B = (3/8) * 64 = 24 liters.
Correct Answer:
A
— 24 liters
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Q. A and B can complete a work in 12 days and 18 days respectively. If they work together, how long will it take them to complete the work?
A.
6 days
B.
8 days
C.
10 days
D.
12 days
Show solution
Solution
A's work rate = 1/12, B's work rate = 1/18. Together, they work at (1/12 + 1/18) = 5/36. Time taken = 36/5 = 7.2 days.
Correct Answer:
B
— 8 days
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Q. A and B can complete a work in 12 days and 18 days respectively. In how many days can they complete the work together?
Show solution
Solution
A's work rate = 1/12, B's work rate = 1/18. Together, they work at (1/12 + 1/18) = 5/36. Therefore, time = 36/5 = 7.2 days.
Correct Answer:
A
— 7.2
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Q. A and B can do a piece of work in 12 days and 18 days respectively. If they work together for 6 days, how much of the work is left?
A.
1/3
B.
1/4
C.
1/2
D.
2/3
Show solution
Solution
A's rate = 1/12, B's rate = 1/18. Combined rate = 1/12 + 1/18 = 5/36. In 6 days, they complete 5/6 of the work, leaving 1/6.
Correct Answer:
C
— 1/2
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Q. A and B can do a piece of work in 20 days and 30 days respectively. If they work together for 10 days, how much of the work is left?
A.
1/3
B.
1/4
C.
1/5
D.
1/6
Show solution
Solution
A's rate = 1/20, B's rate = 1/30. Combined rate = 1/20 + 1/30 = 1/12. In 10 days, they complete 10/12 = 5/6 of the work. Remaining = 1 - 5/6 = 1/6.
Correct Answer:
A
— 1/3
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Q. A and B have an average weight of 60 kg. If A weighs 70 kg, what is B's weight?
A.
50 kg
B.
60 kg
C.
70 kg
D.
80 kg
Show solution
Solution
Average = (A + B) / 2 = 60. Therefore, A + B = 120. If A = 70, then B = 120 - 70 = 50 kg.
Correct Answer:
A
— 50 kg
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Q. A and B invest in a business in the ratio 3:2. If A's share of profit is $600, what is B's share?
A.
$400
B.
$300
C.
$500
D.
$600
Show solution
Solution
If A's share is $600 and the ratio is 3:2, then B's share is (2/3) * 600 = $400.
Correct Answer:
A
— $400
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Q. A and B invest in a business in the ratio 3:2. If the total profit is $5000, how much does B receive?
A.
$2000
B.
$2500
C.
$3000
D.
$1500
Show solution
Solution
Total parts = 3 + 2 = 5. B's share = (2/5) * 5000 = $2000.
Correct Answer:
A
— $2000
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Q. A and B invest in a business in the ratio of 3:2. If the total profit is $5000, how much does B receive?
A.
$2000
B.
$3000
C.
$2500
D.
$1500
Show solution
Solution
Total parts = 3 + 2 = 5. B's share = (2/5) * 5000 = $2000.
Correct Answer:
A
— $2000
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