BECE 2019 Integrated Science Past Questions and Answers
The BECE 2019 Integrated Science paper has 38 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. Steel is an alloy of iron and
- A. aluminium.
- B. carbon.
- C. silicon.
- D. gold.
Answer: B. carbon.
Answer: B. Steel is iron alloyed with a small amount of carbon.
Answer: B. Steel is iron alloyed with a small amount of carbon.
2. An atom that has lost one or more electron(s) is called
- A. a molecule.
- B. a proton.
- C. am ion.
- D. a negative particle.
Answer: C. am ion.
Answer: C. An atom that has lost (or gained) electrons is an ion.
Answer: C. An atom that has lost (or gained) electrons is an ion.
3. In all machines, the efficiency is
- A. always 100%
- B. less than 100%
- C. more than 100%
- D. always 0%
Answer: B. less than 100%
Answer: B. Some energy is always lost to friction, so efficiency is always less than 100%.
Answer: B. Some energy is always lost to friction, so efficiency is always less than 100%.
4. In electronic circuits, LEDs are used to indicate the absence or presence of
- A. voltage source.
- B. p-n junction.
- C. electric current.
- D. emitted and collector.
Answer: C. electric current.
Answer: C. An LED (light-emitting diode) glows only when current flows through it in the forward direction, so it is used to show whether current is present in a circuit.
Answer: C. An LED (light-emitting diode) glows only when current flows through it in the forward direction, so it is used to show whether current is present in a circuit.
6. Which of the following substances is a compound?
- A. Hydrogen
- B. Nitrogen
- C. Oxygen
- D. Water
Answer: D. Water
Answer: D. Water is a compound of hydrogen and oxygen.
Answer: D. Water is a compound of hydrogen and oxygen.
7. Which of the following source(s) of energy is/are renewable?
I. Solar
II. Crude oil
III. Wind
I. Solar
II. Crude oil
III. Wind
- A. I only
- B. I and II only
- C. I and III ONLY
- D. I, II and III
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8. The pressure in fluids
- A. increase with depth.
- B. decrease with depth.
- C. acts upwards at any point.
- D. acts differently in all directions.
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9. Which of the following chemical equations is balanced?
- A. N$_{2}$+H$_{2}$→NH$_{3}$
- B. N$_{2}$+3H$_{2}$→NH$_{3}$
- C. N$_{2}$+H$_{2}$→2NH$_{3}$
- D. N$_{2}$+3H$_{2}$→2NH$_{3}$
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10. Lime juice taste sour because it is
- A. acidic.
- B. alkaline.
- C. basic.
- D. salty.
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11. A metal block has a mass of 1.0 kg. What is the volume of the block if its density is 10 kg m$^{-3}$?
- A. 0.01 m$^{3}$
- B. 0.10 m$^{3}$
- C. 1.00 m$^{3}$
- D. 10.00 $^{3}$
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Answer all 44 questions of the BECE 2019 Integrated Science paper
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