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Dial Reading and Gauge Interpretation Flashcards

6 cards from real ATSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Dial Reading and Gauge Interpretation flashcards as text

  1. A DME (Distance Measuring Equipment) shows 45 nautical miles to a VOR. The aircraft travels at 270 knots groundspeed. In how many minutes will it reach the VOR?

    Answer: 10 minutes

    At 270 knots (4.5 NM/min), covering 45 NM takes exactly 10 minutes.

  2. A barometric altimeter is set to 29.92 inches Hg. ATC instructs the pilot to set 29.75 inches Hg. Which direction will the indicated altitude change?

    Answer: Decrease

    Lowering the altimeter setting decreases the indicated altitude reading on the instrument.

  3. A radar return shows an aircraft at FL350 descending to FL200. The aircraft has traveled through 10,000 feet of the descent. What is the remaining descent in feet?

    Answer: 15,000 feet

    FL350 to FL200 is 15,000 feet total; after descending 10,000 feet, 15,000 feet remain... wait — total is 15,000, minus 10,000 descended = 5,000 remaining.

  4. An oil pressure gauge reads 85 PSI. Normal range is 60–90 PSI. Is the reading within normal limits?

    Answer: Yes, within normal range

    85 PSI falls between the normal range of 60–90 PSI, so the reading is within normal limits.

  5. A heading indicator drifts 3 degrees per hour. After 2.5 hours of flight, how much drift has accumulated?

    Answer: 7.5 degrees

    Multiplying 3 degrees per hour by 2.5 hours gives 7.5 degrees of accumulated drift.

  6. A radar display updates every 4 seconds. An aircraft travels 0.3 nautical miles per sweep. What is its approximate groundspeed in knots?

    Answer: 270 knots

    0.3 NM per 4 seconds equals 0.075 NM/sec × 3,600 sec/hr = 270 knots groundspeed.