MCQ Collection
MDCAT 2026 MCQs
Practice MDCAT 2026 questions with answers and explanations.
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Correct Answer: A. 100 Hz
Explanation:
The fundamental wavelength is 2L for a string or open pipe and 4L for a closed pipe.
Frequency follows from v=fλ.
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Correct Answer: B. 200 Hz
Explanation:
The fundamental wavelength is 2L for a string or open pipe and 4L for a closed pipe.
Frequency follows from v=fλ.
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Correct Answer: C. 200 Hz
Explanation:
The fundamental wavelength is 2L for a string or open pipe and 4L for a closed pipe.
Frequency follows from v=fλ.
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Correct Answer: D. 100 Hz
Explanation:
The fundamental wavelength is 2L for a string or open pipe and 4L for a closed pipe.
Frequency follows from v=fλ.
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Correct Answer: A. 2 Hz
Explanation:
Frequency and period are reciprocals.
f = 1/T.
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Correct Answer: B. 4 Hz
Explanation:
Frequency and period are reciprocals.
f = 1/T.
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Correct Answer: C. 12000 Pa
Explanation:
For horizontal flow, P + ½ρv² is constant.
The pressure drop is ½ρ(v₂²−v₁²).
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Correct Answer: D. Drag balances its effective weight
Explanation:
Fluid motion follows force balance and conservation principles.
The stated explanation matches the described flow condition.
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Correct Answer: A. sp
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
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Correct Answer: A. Velocity or Reynolds number becomes sufficiently high
Explanation:
Fluid motion follows force balance and conservation principles.
The stated explanation matches the described flow condition.
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Correct Answer: B. CO₂
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
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Correct Answer: B. Speed rises and static pressure tends to fall
Explanation:
Fluid motion follows force balance and conservation principles.
The stated explanation matches the described flow condition.