Practice 148 Bioenergetics MCQs — Page 3 of 3
Question 101: If TEACHER is coded as UFBDIFS, how is DOCTOR coded?
- A EPCUPS
- B EPDUPS
- C ENDUPS
- D DPDUPS
Explanation: Each letter moves one step forward. Useful for: MDCAT 2027, NUMS 2027.
Question 102: Facing north, a man turns 90° right and then turns 180°. Which direction does he face?
- A East
- B North
- C South
- D West
Explanation: North → East → West. Useful for: MDCAT 2027, NUMS 2027.
Question 103: Find the next letter: A, D, G, J, ?
- A L
- B K
- C M
- D N
Explanation: Each letter moves 3 steps forward. Useful for: MDCAT 2027, NUMS 2027.
Question 104: Find the next number: 2, 5, 10, 17, 26, ?
- A 36
- B 37
- C 38
- D 35
Explanation: Differences are 3, 5, 7, 9, so the next is +11. Useful for: MDCAT 2027, NUMS 2027.
Question 105: Find the next number: 3, 6, 12, 24, ?
- A 36
- B 42
- C 30
- D 48
Explanation: Each number doubles. Useful for: MDCAT 2027, NUMS 2027.
Question 106: Choose the odd one out: Heart, Liver, Kidney, Femur
- A Liver
- B Kidney
- C Femur
- D Heart
Explanation: The femur is a bone; the others are organs. Useful for: MDCAT 2027, NUMS 2027.
Question 107: A is older than B, B is older than C, and D is older than A. Who is the youngest?
- A C
- B A
- C B
- D D
Explanation: D > A > B > C. Useful for: MDCAT 2027, NUMS 2027.
Question 108: All doctors are graduates. Some graduates are teachers. Conclusion: Some doctors are teachers.
- A Does not necessarily follow
- B Definitely true
- C Definitely false
- D Both statements are false
Explanation: The graduates who are teachers may not be doctors. Useful for: MDCAT 2027, NUMS 2027.
Question 109: Centripetal force acts:
- A Towards the centre of the circle
- B Away from the centre
- C Along the tangent
- D Along the motion
Explanation: It keeps a body on a circular path. Useful for: MDCAT 2027, NUMS 2027.
Question 110: The SI unit of angular velocity is:
- A rad/s²
- B rad/s
- C N·m
- D m/s
Explanation: Angular velocity is angle per unit time. Useful for: MDCAT 2027, NUMS 2027.
Question 111: The equivalent resistance of resistors in series is:
- A The difference of resistances
- B The sum of reciprocals
- C The product of resistances
- D The sum of the resistances
Explanation: R = R1 + R2 + R3. Useful for: MDCAT 2027, NUMS 2027.
Question 112: Kirchhoff's current law is based on conservation of:
- A Charge
- B Momentum
- C Energy
- D Mass
Explanation: Current entering a junction equals current leaving. Useful for: MDCAT 2027, NUMS 2027.
Question 113: Faraday's law relates the induced emf to:
- A The rate of change of magnetic flux
- B Charge
- C Capacitance
- D Resistance
Explanation: emf = −dΦ/dt. Useful for: MDCAT 2027, NUMS 2027.
Question 114: A transformer works on the principle of:
- A Self induction
- B Mutual induction
- C The photoelectric effect
- D Ohm's law
Explanation: A changing flux in the primary induces emf in the secondary. Useful for: MDCAT 2027, NUMS 2027.
Question 115: A step-up transformer has:
- A Fewer turns in the secondary
- B Equal turns
- C No secondary coil
- D More turns in the secondary than in the primary
Explanation: Secondary turns exceed primary turns. Useful for: MDCAT 2027, NUMS 2027.
Question 116: The SI unit of magnetic flux density is the:
- A Tesla
- B Weber
- C Farad
- D Henry
Explanation: Magnetic flux density is measured in tesla. Useful for: MDCAT 2027, NUMS 2027.
Question 117: Coulomb's law says the force between two point charges is:
- A Inversely proportional to the square of the distance
- B Directly proportional to the distance
- C Directly proportional to the square of the distance
- D Independent of distance
Explanation: F ∝ 1/r². Useful for: MDCAT 2027, NUMS 2027.
Question 118: The SI unit of capacitance is the:
- A Henry
- B Farad
- C Tesla
- D Weber
Explanation: Capacitance is measured in farads. Useful for: MDCAT 2027, NUMS 2027.
Question 119: Which of the following is a base SI unit?
- A Joule
- B Watt
- C Newton
- D Kelvin
Explanation: Kelvin is the SI unit of temperature. Useful for: MDCAT 2027, NUMS 2027.
Question 120: The dimensions of force are:
- A [MLT⁻²]
- B [MLT⁻¹]
- C [ML⁻¹T⁻²]
- D [ML²T⁻²]
Explanation: Force = mass × acceleration. Useful for: MDCAT 2027, NUMS 2027.
Question 121: The photoelectric effect was explained by:
- A Niels Bohr
- B Isaac Newton
- C Ernest Rutherford
- D Albert Einstein
Explanation: Einstein explained it with photons in 1905. Useful for: MDCAT 2027, NUMS 2027.
Question 122: The energy of a photon is given by:
- A E = qV
- B E = hf
- C E = ½mv²
- D E = mgh
Explanation: Photon energy equals Planck's constant times frequency. Useful for: MDCAT 2027, NUMS 2027.
Question 123: The atomic nucleus was discovered by:
- A Niels Bohr
- B Ernest Rutherford
- C J.J. Thomson
- D James Chadwick
Explanation: Rutherford's gold foil experiment revealed the nucleus. Useful for: MDCAT 2027, NUMS 2027.
Question 124: A body moving with uniform velocity has:
- A Constant acceleration
- B Decreasing acceleration
- C Increasing acceleration
- D Zero acceleration
Explanation: Uniform velocity means no acceleration. Useful for: MDCAT 2027, NUMS 2027.
Question 125: The area under a velocity-time graph represents:
- A Acceleration
- B Displacement
- C Force
- D Speed
Explanation: Area = ∫v dt = displacement. Useful for: MDCAT 2027, NUMS 2027.
Question 126: When a ball is thrown vertically upward, its velocity at the highest point is:
- A 9.8 m/s
- B Zero
- C Infinite
- D Maximum
Explanation: It momentarily stops before falling. Useful for: MDCAT 2027, NUMS 2027.
Question 127: Momentum is the product of:
- A Force and distance
- B Mass and acceleration
- C Mass and velocity
- D Weight and time
Explanation: p = mv. Useful for: MDCAT 2027, NUMS 2027.
Question 128: The SI unit of momentum is:
- A kg·m/s²
- B J
- C kg·m/s
- D N·m
Explanation: Momentum is mass times velocity. Useful for: MDCAT 2027, NUMS 2027.
Question 129: The range of a projectile is maximum at a launch angle of:
- A 60°
- B 45°
- C 90°
- D 30°
Explanation: R = u² sin 2θ / g is maximum at 45°. Useful for: MDCAT 2027, NUMS 2027.
Question 130: The force of friction acts:
- A Along the motion
- B Perpendicular to the surface
- C Upward only
- D Opposite to the relative motion
Explanation: Friction opposes relative motion between surfaces. Useful for: MDCAT 2027, NUMS 2027.
Question 131: Which radiation is the most penetrating among alpha, beta, gamma and UV?
- A Gamma rays
- B Ultraviolet rays
- C Alpha particles
- D Beta particles
Explanation: Gamma rays penetrate matter deeply. Useful for: MDCAT 2027, NUMS 2027.
Question 132: The half-life of a radioactive substance is the time in which:
- A All the nuclei decay
- B A quarter of the nuclei decay
- C The activity doubles
- D Half of the nuclei decay
Explanation: After one half-life, half remain. Useful for: MDCAT 2027, NUMS 2027.
Question 133: The bending of light as it passes from one medium to another is called:
- A Refraction
- B Diffraction
- C Polarization
- D Reflection
Explanation: Light changes speed and direction at the boundary. Useful for: MDCAT 2027, NUMS 2027.
Question 134: Total internal reflection occurs when light travels from:
- A Vacuum to water
- B Air to glass
- C A denser to a rarer medium
- D A rarer to a denser medium
Explanation: It requires the incidence angle to exceed the critical angle. Useful for: MDCAT 2027, NUMS 2027.
Question 135: For a real object, a concave lens always forms an image that is:
- A Real and magnified
- B Real and inverted
- C Virtual and magnified
- D Virtual and diminished
Explanation: A diverging lens gives a virtual, smaller image. Useful for: MDCAT 2027, NUMS 2027.
Question 136: Interference of light was demonstrated by:
- A Thomas Young
- B James Maxwell
- C Isaac Newton
- D Christiaan Huygens
Explanation: Young's double-slit experiment showed interference. Useful for: MDCAT 2027, NUMS 2027.
Question 137: The first law of thermodynamics is a statement of conservation of:
- A Momentum
- B Charge
- C Energy
- D Mass
Explanation: ΔU = Q − W. Useful for: MDCAT 2027, NUMS 2027.
Question 138: Absolute zero is equal to:
- A −373 °C
- B 0 °C
- C −100 °C
- D −273.15 °C
Explanation: Absolute zero is 0 K. Useful for: MDCAT 2027, NUMS 2027.
Question 139: In an isothermal process, which quantity remains constant?
- A Entropy
- B Pressure
- C Volume
- D Temperature
Explanation: Isothermal means constant temperature. Useful for: MDCAT 2027, NUMS 2027.
Question 140: The most efficient heat engine operating between two temperatures is the:
- A Carnot engine
- B Diesel engine
- C Petrol engine
- D Steam engine
Explanation: The Carnot cycle sets the maximum efficiency. Useful for: MDCAT 2027, NUMS 2027.
Question 141: Which of the following is a vector quantity?
- A Time
- B Mass
- C Speed
- D Velocity
Explanation: Velocity has magnitude and direction. Useful for: MDCAT 2027, NUMS 2027.
Question 142: The dot product of two perpendicular vectors is:
- A Infinite
- B Maximum
- C One
- D Zero
Explanation: A·B = AB cos 90° = 0. Useful for: MDCAT 2027, NUMS 2027.
Question 143: The speed of sound in air at 0°C is about:
- A 331 m/s
- B 100 m/s
- C 3 × 10⁸ m/s
- D 1,500 m/s
Explanation: Sound travels at roughly 331 m/s at 0°C. Useful for: MDCAT 2027, NUMS 2027.
Question 144: Which waves do not need a medium to travel?
- A Sound waves
- B Electromagnetic waves
- C Water waves
- D Waves on a string
Explanation: EM waves travel through vacuum. Useful for: MDCAT 2027, NUMS 2027.
Question 145: Work done by a force perpendicular to the displacement is:
- A Maximum
- B Negative
- C Zero
- D Infinite
Explanation: W = Fd cos 90° = 0. Useful for: MDCAT 2027, NUMS 2027.
Question 146: The SI unit of work is the:
- A Joule
- B Newton
- C Watt
- D Pascal
Explanation: Work is measured in joules. Useful for: MDCAT 2027, NUMS 2027.
Question 147: Gravitational potential energy is given by:
- A ½mv²
- B mgh
- C mg/h
- D mv
Explanation: PE = mass × g × height. Useful for: MDCAT 2027, NUMS 2027.
Question 148: The escape velocity from the Earth is approximately:
- A 9.8 km/s
- B 11.2 km/s
- C 7.9 km/s
- D 3 km/s
Explanation: Escape velocity is about 11.2 km/s. Useful for: MDCAT 2027, NUMS 2027.
Frequently Asked Questions
How many Bioenergetics MCQs are available on TestMasterMCQs?
There are currently 148 Bioenergetics MCQs on this page, each with four options, the correct answer and a short explanation to help you understand the concept — not just memorise the answer.
Are these Bioenergetics MCQs useful for PPSC, FPSC, NTS, CSS and MDCAT?
Yes — our Bioenergetics questions follow the syllabus of common Pakistani competitive exams including CSS, PMS, PPSC, FPSC, NTS, and university entry tests like MDCAT and ECAT.
How should I practice Bioenergetics MCQs for better retention?
Attempt 15–20 questions at a time, read the explanation after every question (even the ones you get right), and revisit wrong answers after 24 hours to reinforce memory.