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MCQs

Total Questions : 199 | Page 16 of 20 pages
Question 151. . What are the basic building blocks that all matter is composed of?
  1.    electrons, neutrons, and protons
  2.    two protons for each neutron
  3.    two protons for each electron
  4.    electrons, neutrons, and charged ions
 Discuss Question
Answer: Option A. -> electrons, neutrons, and protons
Question 152. . What is a characteristic of a secondary cell?
  1.    rechargeability
  2.    not rechargeable
  3.    a dry cell
  4.    non-liquid
 Discuss Question
Answer: Option A. -> rechargeability
Question 153. . If a fluid system is compared to an electrical system, the fluid pump will correspond to a:
  1.    conductor
  2.    lamp
  3.    battery
  4.    insulator
 Discuss Question
Answer: Option C. -> battery
Question 154. . An element is a substance that is:
  1.    varied throughout the entire piece
  2.    used only in electronics
  3.    electrically charged
  4.    found only in its pure form
 Discuss Question
Answer: Option D. -> found only in its pure form
Question 155. . What do you call a diagram that shows the electrical connections of a circuit's components?
  1.    A schematic diagram
  2.    A pictorial diagram
  3.    A block diagram
  4.    An electrical diagram
 Discuss Question
Answer: Option A. -> A schematic diagram
Question 156. . Current is:
  1.    the presence of a positive charge
  2.    the abundance of electrons
  3.    the movement of electrons
  4.    the repulsion of electrons
 Discuss Question
Answer: Option C. -> the movement of electrons
Question 157. . A short circuit will have:
  1.    a small current flow
  2.    a large current flow
  3.    no current flow
  4.    some current flow
 Discuss Question
Answer: Option B. -> a large current flow
Question 158. . The basic difference between a fuse and a circuit breaker is
  1.    a fuse is slower
  2.    a fuse is reusable
  3.    a circuit breaker is reusable
  4.    a circuit breaker is more reliable
 Discuss Question
Answer: Option C. -> a circuit breaker is reusable
Question 159. . Which is the smallest?
  1.    atom
  2.    proton
  3.    neutron
  4.    electron
 Discuss Question
Answer: Option D. -> electron
Question 160. . A secondary cell generates dc via chemical activity; a primary cell generates dc:
  1.    electrically
  2.    thermally
  3.    optically
  4.    chemically
 Discuss Question
Answer: Option D. -> chemically

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