BECE 2012 Integrated Science Past Questions and Answers
The BECE 2012 Integrated Science paper has 39 objective and 6 theory questions. Here are sample objective questions with the correct answers and explanations. Sit the full paper with the real time limit on ePrep.
Sample questions with answers
1. The S.I unit for measuring the work done by a force is
- A. J.
- B. K.
- C. N.
- D. W.
Answer: A. J.
Answer: A. Work is measured in joules (J).
Answer: A. Work is measured in joules (J).
2. The chemical formula of a compound describes the
- A. number of molecules in the compound.
- B. type of bonding in the compound.
- C. ratio in which the elements are combined.
- D. state of the compound.
Answer: C. ratio in which the elements are combined.
Answer: C. A formula shows the ratio in which elements combine.
Answer: C. A formula shows the ratio in which elements combine.
3. Which of the following life processes is represented by the equation glucose + oxygen → carbon dioxide + water + energy?
- A. Digestion
- B. Excretion
- C. Photosynthesis
- D. Respiration
Answer: D. Respiration
Answer: D. Glucose + oxygen → carbon dioxide + water + energy is respiration.
Answer: D. Glucose + oxygen → carbon dioxide + water + energy is respiration.
4. Each layer of soil profile is known as
- A. horizon.
- B. litter.
- C. regolith.
- D. solum.
Answer: A. horizon.
Answer: A. Each layer in a soil profile is a horizon.
Answer: A. Each layer in a soil profile is a horizon.
5. When the p-n junction of a transistor is reversed biased
- A. current flows from the p-type to the n-type.
- B. no current flows from the p-type to the n-type.
- C. conduction of current occurs.
- D. current flows from the n-type to the p-type.
Answer: B. no current flows from the p-type to the n-type.
Answer: B. A reverse-biased p-n junction allows (almost) no current.
Answer: B. A reverse-biased p-n junction allows (almost) no current.
6. When a solid-liquid mixture is filtered, the liquid that separates out into the container is called
- A. filtrate.
- B. residue.
- C. sediment.
- D. solution.
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7. Which of the following processes involves the solid state of matter?
- A. Boiling
- B. Condensation
- C. Evaporation
- D. Melting
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8. Which of the following farming systems is most effective in maintaining soil fertility?
- A. Crop rotation
- B. Land rotation
- C. Mixed cropping
- D. Monoculture
Answer and explanation: practise this paper on ePrep.
9. The disease in humans which is associated with insufficient intake of calcium is
- A. goiter.
- B. kwashiorkor.
- C. rickets.
- D. scurvy.
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10. The arrow in the circuit symbol of either n-p-n or p-n-p transistor is always on the
- A. base lead.
- B. collector lead.
- C. emitter lead.
- D. receiver lead.
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