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Practice Questions for Assertion & Reason | Logical Reasoning (LR) and Data Interpretation (DI) - CAT PDF Download

Q1: Assertion (A): Birds have feathers.
Reason (R): Feathers help birds to fly.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans: 
(a)
Sol: Both the assertion and reason are true. Feathers indeed help birds fly, as they provide lift and control during flight.


Q2: Assertion (A): The Earth orbits the Sun.
Reason (R): The Sun is much larger than the Earth.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans: 
(a)
Sol: Both the assertion and reason are true. The Earth’s orbit around the Sun is due to the Sun’s gravitational pull, which is possible because the Sun is much larger than the Earth.


Q3: Assertion (A): Plants conduct photosynthesis.
Reason (R): Photosynthesis is essential for plant growth.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans: 
(a)
Sol: Both the assertion and reason are true. Photosynthesis is a vital process for plant growth and involves the conversion of sunlight into energy.


Q4: Assertion (A): Water boils at 100 degrees Celsius at sea level.
Reason (R): Atmospheric pressure affects the boiling point of water.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. The boiling point of water varies with changes in atmospheric pressure, and at sea level, it boils at 100 degrees Celsius.


Q5: Assertion (A): Oxygen is necessary for combustion.
Reason (R): Combustion is a chemical reaction involving the release of energy.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. Oxygen is a crucial component of combustion, which is indeed a chemical reaction releasing energy.


Q6: Assertion (A): Metal objects expand when heated.
Reason (R): Heating increases the kinetic energy of metal atoms.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans: 
(a)
Sol: Both the assertion and reason are true. Heating metal objects increases the kinetic energy of their atoms, causing expansion.


Q7: Assertion (A): The Moon has gravitational pull.
Reason (R): Gravity is a fundamental force of nature.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. The Moon’s gravitational pull is due to the fundamental force of gravity.


Q8: Assertion (A): Sound travels faster in solids than in gases.
Reason (R): Solids have a higher density than gases.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. Sound travels faster in denser materials, such as solids, due to the closer arrangement of particles.


Q9: Assertion (A): Adding salt to water lowers its freezing point.
Reason (R): Salt disrupts the formation of ice crystals in water.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. Adding salt lowers the freezing point of water by interfering with the formation of ice crystals.


Q10: Assertion (A): Human beings require oxygen to survive.
Reason (R): Oxygen is essential for cellular respiration, which produces
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Ans:
(a)
Sol: Both the assertion and reason are true. Humans require oxygen for cellular respiration, a process that produces energy necessary for survival.

The document Practice Questions for Assertion & Reason | Logical Reasoning (LR) and Data Interpretation (DI) - CAT is a part of the CAT Course Logical Reasoning (LR) and Data Interpretation (DI).
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FAQs on Practice Questions for Assertion & Reason - Logical Reasoning (LR) and Data Interpretation (DI) - CAT

1. What is an Assertion & Reason CAT?
Ans. An Assertion & Reason CAT is a type of examination format where candidates are presented with a series of statements called assertions, and they have to determine whether the given reason justifies the assertion or not.
2. How are Assertion & Reason questions different from other types of questions in CAT?
Ans. Assertion & Reason questions in CAT are different from other types of questions as they require candidates to analyze the relationship between an assertion and its reason. In other types of questions, candidates are usually asked to solve problems or answer questions based on given information.
3. How should I approach Assertion & Reason questions in the CAT exam?
Ans. To approach Assertion & Reason questions in the CAT exam, it is important to carefully analyze both the assertion and the reason. Candidates should evaluate whether the reason logically justifies the assertion or not. It is also crucial to eliminate options that do not have a valid relationship between the assertion and the reason.
4. Are Assertion & Reason questions more difficult than other types of questions in CAT?
Ans. Assertion & Reason questions in CAT can be more challenging for some candidates as they require a deeper understanding of the given statements and their logical relationships. However, with practice and familiarity with the format, these questions can be tackled effectively.
5. How can I improve my performance in Assertion & Reason questions in CAT?
Ans. To improve performance in Assertion & Reason questions in CAT, candidates should practice solving similar questions from previous year papers or mock tests. It is important to develop the ability to analyze the relationship between assertions and reasons and to eliminate options that do not have a valid connection. Regular practice and understanding of logical reasoning will help in enhancing performance in these types of questions.
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