Aptitude Test Reading Comprehension Analysis Questions and Answers Flashcards

Read the passage: 'All electrical installations must conform to the National Electrical Code (NEC). The NEC is updated every three years to incorporate new safety findings. Inspectors verify compliance before a certificate of occupancy is issued.' What is the main purpose of the NEC according to this passage?

Answer: To ensure electrical safety through standardized codes

The passage states the NEC is a safety code updated to 'incorporate new safety findings,' indicating its primary purpose is ensuring electrical safety.

Passage: 'Voltage is the electrical potential difference between two points. Without a potential difference, current cannot flow. This is analogous to water only flowing downhill when there is a height difference between two points.' What does this passage compare voltage to?

Answer: The height difference causing water flow

The passage explicitly states voltage is 'analogous to' the height difference that causes water to flow downhill.

Passage: 'Lockout/tagout (LOTO) procedures require that electrical equipment be de-energized before maintenance begins. Each worker must apply their own personal lock to the energy isolation device. This ensures that no single worker can re-energize the equipment while others are still working on it.' According to the passage, why must each worker apply their own lock?

Answer: To prevent any single worker from re-energizing equipment while others work

The passage directly states: 'This ensures that no single worker can re-energize the equipment while others are still working on it.'

Passage: 'Conduit must be supported at regular intervals to prevent sagging and mechanical damage. Rigid metal conduit (RMC) requires supports every 10 feet, while electrical metallic tubing (EMT) requires support every 10 feet but with additional supports within 3 feet of each box or fitting.' What is unique about EMT support requirements compared to RMC?

Answer: EMT requires additional supports near boxes and fittings

The passage says EMT needs supports every 10 feet like RMC, but also requires additional supports within 3 feet of each box or fitting.

Passage: 'A journeyman electrician mentors apprentices under the supervision of a master electrician. The master electrician holds the license that covers all work done by their crew. The journeyman may direct work but cannot pull permits independently.' What can a journeyman electrician NOT do according to this passage?

Answer: Pull permits independently

The passage explicitly states the journeyman 'cannot pull permits independently.'

Passage: 'Three-phase power is more efficient for transmitting electricity over long distances than single-phase power. It provides smoother power delivery and allows motors to be smaller for the same output. Most industrial facilities use three-phase power for these reasons.' What is the main idea of this passage?

Answer: Three-phase power offers efficiency and performance advantages

The passage describes multiple advantages of three-phase power (efficiency, smooth delivery, smaller motors), making that the main idea.