Free MCQs with Answers | Military Brat Defence Academy
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Free MCQs with Answers | Military Brat Defence Academy

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QID #25368 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Work done is zero when force and displacement are:

Correct Answer: B. Perpendicular to each other
W = Fs cos theta; at 90 degrees, cos theta is zero.
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QID #25367 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Which mirror is commonly used as a rear-view mirror in vehicles?

Correct Answer: C. Convex mirror
A convex mirror provides a wide field of view and forms erect diminished images.
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QID #25366 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

The SI unit of electric current is:

Correct Answer: C. Ampere
The ampere is the SI base unit of electric current.
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QID #25365 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Which gas is evolved when a dilute acid reacts with an active metal such as zinc?

Correct Answer: B. Hydrogen
Acid-metal reactions commonly release hydrogen gas.
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QID #25364 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

A solution with pH 3 is:

Correct Answer: C. Acidic
A pH below 7 indicates an acidic solution.
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QID #25363 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

The atomic number of an element is equal to the number of:

Correct Answer: B. Protons
Atomic number is defined by the number of protons in the nucleus.
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QID #25362 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Insulin is secreted by which cells of the pancreas?

Correct Answer: B. Beta cells
Beta cells of the islets of Langerhans secrete insulin.
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QID #25361 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Which blood cells are primarily responsible for oxygen transport?

Correct Answer: B. Red blood cells
Red blood cells contain haemoglobin, which transports oxygen.
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QID #25360 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

The functional unit of the kidney is:

Correct Answer: B. Nephron
The nephron is the structural and functional unit of the kidney.
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QID #25359 MNS MNS Full Mock Test 2026-12th Entry MNS Full Mock Test 13 - Latest CBT 2026 Easy

Which organelle is known as the powerhouse of the cell?

Correct Answer: B. Mitochondrion
Mitochondria generate most cellular ATP through aerobic respiration.
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QID #25278 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Primary prevention is most accurate?

Correct Answer: D. acts before disease begins by controlling causes or risk factors
Primary prevention acts before disease begins by controlling causes or risk factors. The other choices describe different concepts.
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QID #25277 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Specificity is most accurate?

Correct Answer: C. is a test's ability to identify people who truly do not have the condition
Specificity is a test's ability to identify people who truly do not have the condition. The other choices describe different concepts.
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QID #25276 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Sensitivity is most accurate?

Correct Answer: B. is a test's ability to identify people who truly have the condition
Sensitivity is a test's ability to identify people who truly have the condition. The other choices describe different concepts.
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QID #25275 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Case fatality ratio is most accurate?

Correct Answer: A. is the proportion of identified cases who die from the disease
Case fatality ratio is the proportion of identified cases who die from the disease. The other choices describe different concepts.
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QID #25274 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Attack rate is most accurate?

Correct Answer: D. is the proportion becoming ill among an exposed at-risk group during an outbreak
Attack rate is the proportion becoming ill among an exposed at-risk group during an outbreak. The other choices describe different concepts.
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QID #25273 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Pandemic is most accurate?

Correct Answer: C. is an epidemic spreading across countries or continents
Pandemic is an epidemic spreading across countries or continents. The other choices describe different concepts.
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QID #25272 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Endemic disease is most accurate?

Correct Answer: B. is consistently present at a usual level in a geographic area
Endemic disease is consistently present at a usual level in a geographic area. The other choices describe different concepts.
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QID #25271 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Epidemic is most accurate?

Correct Answer: A. is disease occurrence above the expected level in a community
Epidemic is disease occurrence above the expected level in a community. The other choices describe different concepts.
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QID #25270 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Prevalence is most accurate?

Correct Answer: D. measures existing cases in a population at a point or during a period
Prevalence measures existing cases in a population at a point or during a period. The other choices describe different concepts.
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QID #25269 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual Community Medicine and NHM Hard

Which explanation of Incidence is most accurate?

Correct Answer: C. counts new cases occurring in a population during a specified period
Incidence counts new cases occurring in a population during a specified period. The other choices describe different concepts.
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Free MCQs with Answers and Explanations

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