Defence Exams MCQ & Objective Questions
Defence Exams play a crucial role in shaping the future of aspiring candidates in India. These exams not only assess knowledge but also test the ability to apply concepts in real-world scenarios. Practicing MCQs and objective questions is essential for effective exam preparation, as it helps students identify important questions and enhances their understanding of key topics.
What You Will Practise Here
Fundamentals of Defence Studies
Key Historical Events and Their Impact
Important Defence Policies and Strategies
Current Affairs Related to National Security
Basic Concepts of Military Operations
Understanding Defence Technologies
Analysing Defence Budget and Expenditure
Exam Relevance
The topics covered in Defence Exams are highly relevant across various educational boards, including CBSE and State Boards, as well as competitive exams like NEET and JEE. Students can expect questions that focus on historical events, current affairs, and fundamental concepts related to defence. Common question patterns include multiple-choice questions that assess both theoretical knowledge and practical application.
Common Mistakes Students Make
Overlooking current affairs, which are often integrated into exam questions.
Confusing similar historical events or dates, leading to incorrect answers.
Neglecting the importance of definitions and key terms in objective questions.
Relying solely on rote memorization instead of understanding concepts.
FAQs
Question: What types of questions can I expect in Defence Exams?Answer: You can expect a mix of MCQs covering historical events, current affairs, and fundamental concepts related to defence.
Question: How can I improve my performance in Defence Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Start your journey towards success by solving practice MCQs today! Testing your understanding will not only boost your confidence but also prepare you for the important Defence Exams ahead.
Q. What is the primary component of the Earth's crust? (2021)
A.
Iron
B.
Silicon
C.
Oxygen
D.
Aluminum
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Solution
The Earth's crust is primarily composed of oxygen, which combines with silicon to form silicate minerals.
Correct Answer:
C
— Oxygen
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Q. What is the primary composition of the Earth's crust? (2022)
A.
Basalt and granite
B.
Iron and nickel
C.
Silicate minerals
D.
Water and gases
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Solution
The Earth's crust is primarily composed of basalt (oceanic crust) and granite (continental crust).
Correct Answer:
A
— Basalt and granite
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Q. What is the primary composition of the Earth's inner core?
A.
Solid iron
B.
Liquid iron
C.
Silicate rocks
D.
Water
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Solution
The inner core is primarily composed of solid iron, along with some nickel.
Correct Answer:
A
— Solid iron
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Q. What is the primary composition of the Earth's outer core? (2022)
A.
Solid rock
B.
Liquid iron and nickel
C.
Silicate minerals
D.
Granite
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Solution
The outer core is primarily composed of liquid iron and nickel, which is crucial for generating the Earth's magnetic field.
Correct Answer:
B
— Liquid iron and nickel
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Q. What is the primary factor that affects climate in a region? (2022)
A.
Altitude
B.
Latitude
C.
Longitude
D.
Population density
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Solution
Latitude is the primary factor that affects climate in a region, as it determines the angle of sunlight received.
Correct Answer:
B
— Latitude
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Q. What is the primary factor that affects the soil erosion rate in riverbanks? (2023)
A.
Soil type
B.
Vegetation cover
C.
Water flow speed
D.
All of the above
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Solution
All of the above factors affect soil erosion rate.
Correct Answer:
D
— All of the above
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Q. What is the primary factor that affects the state of matter?
A.
Temperature
B.
Pressure
C.
Volume
D.
Density
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Solution
Temperature is the primary factor that affects the state of matter by influencing particle energy.
Correct Answer:
A
— Temperature
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Q. What is the primary focus of the Beti Bachao Beti Padhao scheme? (2015)
A.
To promote women's entrepreneurship
B.
To improve the sex ratio and promote education for girls
C.
To provide financial assistance to women
D.
To enhance women's health services
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Solution
The Beti Bachao Beti Padhao scheme focuses on improving the sex ratio and promoting education for girls.
Correct Answer:
B
— To improve the sex ratio and promote education for girls
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Q. What is the primary function of carbohydrates in the body?
A.
Building tissues
B.
Providing energy
C.
Regulating hormones
D.
Transporting nutrients
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Solution
The primary function of carbohydrates in the body is to provide energy, especially for the brain and muscles.
Correct Answer:
B
— Providing energy
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Q. What is the primary function of dietary fats?
A.
Energy storage
B.
Building muscle
C.
Regulating metabolism
D.
Enhancing immunity
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Solution
The primary function of dietary fats is energy storage, providing 9 calories per gram.
Correct Answer:
A
— Energy storage
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Q. What is the primary function of fats in the diet?
A.
Energy storage
B.
Muscle building
C.
Bone health
D.
Immune function
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Solution
Fats primarily serve as energy storage, providing 9 calories per gram.
Correct Answer:
A
— Energy storage
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Q. What is the primary function of root hairs in plants?
A.
Photosynthesis
B.
Water absorption
C.
Nutrient storage
D.
Gas exchange
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Solution
Root hairs increase the surface area of roots, enhancing the plant's ability to absorb water and nutrients from the soil.
Correct Answer:
B
— Water absorption
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Q. What is the primary function of the cell membrane?
A.
To provide energy to the cell
B.
To control the movement of substances in and out of the cell
C.
To store genetic information
D.
To synthesize proteins
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Solution
The cell membrane regulates what enters and exits the cell, maintaining homeostasis.
Correct Answer:
B
— To control the movement of substances in and out of the cell
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Q. What is the primary function of the circulatory system in the human body?
A.
To digest food
B.
To transport nutrients and oxygen
C.
To regulate body temperature
D.
To produce hormones
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Solution
The circulatory system is responsible for transporting nutrients, oxygen, and waste products throughout the body.
Correct Answer:
B
— To transport nutrients and oxygen
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Q. What is the primary function of the digestive system? (2020)
A.
To absorb nutrients
B.
To circulate blood
C.
To regulate temperature
D.
To protect against pathogens
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Solution
The primary function of the digestive system is to break down food and absorb nutrients, making option 1 the correct answer.
Correct Answer:
A
— To absorb nutrients
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Q. What is the primary function of the Election Commission of India?
A.
Conducting elections
B.
Amending the Constitution
C.
Legislating laws
D.
Appointing judges
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Solution
The primary function of the Election Commission of India is to conduct free and fair elections in the country.
Correct Answer:
A
— Conducting elections
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Q. What is the primary function of the integumentary system?
A.
To protect the body
B.
To regulate temperature
C.
To provide sensory information
D.
All of the above
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Solution
The integumentary system, which includes the skin, hair, and nails, serves to protect the body, regulate temperature, and provide sensory information.
Correct Answer:
D
— All of the above
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Q. What is the primary function of the mitochondria? (2020)
A.
Photosynthesis
B.
Cellular respiration
C.
Protein synthesis
D.
DNA replication
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Solution
Mitochondria are known as the powerhouse of the cell, where cellular respiration occurs to produce ATP.
Correct Answer:
B
— Cellular respiration
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Q. What is the primary function of the respiratory system in the human body? (2021)
A.
To circulate blood
B.
To exchange gases
C.
To digest food
D.
To regulate temperature
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Solution
The primary function of the respiratory system is to exchange gases, specifically to take in oxygen and expel carbon dioxide.
Correct Answer:
B
— To exchange gases
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Q. What is the primary function of the ribosomes in a cell? (2021)
A.
Energy production
B.
Protein synthesis
C.
DNA replication
D.
Cell division
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Solution
Ribosomes are the cellular structures responsible for synthesizing proteins by translating messenger RNA (mRNA).
Correct Answer:
B
— Protein synthesis
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Q. What is the primary gas responsible for the greenhouse effect? (2023)
A.
Oxygen
B.
Nitrogen
C.
Carbon Dioxide
D.
Hydrogen
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Solution
Carbon Dioxide is the primary gas responsible for the greenhouse effect.
Correct Answer:
C
— Carbon Dioxide
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Q. What is the primary method used to study the Earth's interior? (2023)
A.
Seismic waves
B.
Magnetic field analysis
C.
Gravitational studies
D.
Satellite imagery
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Solution
Seismic waves generated by earthquakes are the primary method used to study the Earth's interior structure.
Correct Answer:
A
— Seismic waves
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Q. What is the primary objective of the Pradhan Mantri Awas Yojana (PMAY)? (2022)
A.
To provide free education to all children
B.
To ensure housing for all by 2022
C.
To promote digital literacy
D.
To enhance agricultural productivity
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Solution
The Pradhan Mantri Awas Yojana aims to provide affordable housing to the urban poor and ensure housing for all by the year 2022.
Correct Answer:
B
— To ensure housing for all by 2022
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Q. What is the primary product of the complete combustion of propane (C3H8)? (2020)
A.
Carbon monoxide
B.
Water
C.
Carbon dioxide
D.
Hydrogen
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Solution
The complete combustion of propane produces carbon dioxide (CO2) and water (H2O) as primary products.
Correct Answer:
C
— Carbon dioxide
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Q. What is the primary product when an acid reacts with a metal carbonate?
A.
Salt
B.
Water
C.
Carbon dioxide
D.
All of the above
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Solution
The reaction produces a salt, water, and carbon dioxide.
Correct Answer:
D
— All of the above
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Q. What is the primary product when sodium bicarbonate reacts with hydrochloric acid?
A.
Sodium chloride
B.
Carbon dioxide
C.
Water
D.
All of the above
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Solution
The reaction produces sodium chloride, carbon dioxide, and water.
Correct Answer:
D
— All of the above
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Q. What is the primary reason for the Earth's magnetic field? (2020)
A.
Movement of the crust
B.
Flow of molten iron in the outer core
C.
Solar winds
D.
Tectonic activity
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Solution
The Earth's magnetic field is primarily generated by the flow of molten iron in the outer core.
Correct Answer:
B
— Flow of molten iron in the outer core
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Q. What is the primary reason for the movement of tectonic plates?
A.
Gravity
B.
Convection currents
C.
Magnetic forces
D.
Centrifugal force
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Solution
Tectonic plates move primarily due to convection currents in the mantle, which are caused by the heat from the Earth's core.
Correct Answer:
B
— Convection currents
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Q. What is the primary reason for the occurrence of seasons on Earth? (2022)
A.
Distance from the Sun
B.
Tilt of the Earth's axis
C.
Revolution around the Sun
D.
Rotation of the Earth
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Solution
The primary reason for the occurrence of seasons on Earth is the tilt of the Earth's axis.
Correct Answer:
B
— Tilt of the Earth's axis
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Q. What is the primary reason that gases fill their containers? (2023)
A.
High density
B.
Low density
C.
High kinetic energy
D.
Low kinetic energy
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Solution
Gases fill their containers due to high kinetic energy, which allows particles to move freely and spread out.
Correct Answer:
C
— High kinetic energy
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