OAR OAR Reading Comprehension 5

Question 1

Read: 'The watch officer noted the contact on the port bow, bearing 315 degrees, and estimated its speed at 12 knots based on successive radar fixes.' What technique was used to estimate the contact's speed?

Accepted Answer

Successive radar fixes over time

Answer

Tracking changes in position across multiple radar fixes over time allows speed estimation, as the passage states.

Question 2

A passage reads: 'The treaty obligated signatory nations to share intelligence regarding maritime threats, though participation remained voluntary in practice.' What tension does the passage identify?

Accepted Answer

Between formal obligations and the voluntary nature of actual participation

Answer

The passage highlights a contradiction: nations are formally obligated by the treaty but participation is voluntary in practice.

Question 3

Read: 'Submariners must master the ability to interpret passive sonar data — sounds alone, without active pinging — to identify vessel types and estimate ranges.' Why would submarines prefer passive over active sonar?

Accepted Answer

Active sonar reveals the submarine's own position

Answer

Active sonar emits a ping that can be detected by others, compromising the submarine's stealth — a key reason passive sonar is preferred.

Question 4

A passage states: 'The captain's decision was vindicated when subsequent events confirmed that the risks she had dismissed were indeed negligible.' The word 'vindicated' most nearly means:

Accepted Answer

Shown to be correct or justified

Answer

'Vindicated' means shown to be right or justified, and the context confirms this through subsequent events proving the decision correct.

Question 5

Read: 'Logistical support ships replenish fuel, ammunition, and provisions at sea, allowing strike groups to remain deployed for extended periods without returning to port.' What operational advantage does this provide?

Accepted Answer

Extended deployment without requiring port visits

Answer

Replenishment at sea directly enables longer deployments without port calls, as the passage explicitly states.

OAR Test Practice Test

OAR Test Practice Test

OAR OAR Reading Comprehension 5