For operations up to 8000 ft, which VMO applies?

For operations up to 8000 ft, which VMO applies?

• A. 275
• B. 300
• C. 320
• D. 340

Answer: (B)

VMO is the maximum operating speed in indicated airspeed that applies at a given altitude. For the ERJ 175, up to 8000 feet the published VMO is 320 knots. That means when you're operating at or below 8000 ft, you must not exceed 320 knots IAS. The other speeds aren’t the published limit for this altitude range: 340 knots would be above the VMO, while 275 and 300 knots are lower than the published limit but not the applicable maximum you’re being asked about. Above 8000 ft, the restriction typically shifts to a Mach number, but this question focuses on the range up to 8000 ft, where the limit is 320 knots.

VMO is the maximum operating speed in indicated airspeed that applies at a given altitude. For the ERJ 175, up to 8000 feet the published VMO is 320 knots. That means when you're operating at or below 8000 ft, you must not exceed 320 knots IAS. The other speeds aren’t the published limit for this altitude range: 340 knots would be above the VMO, while 275 and 300 knots are lower than the published limit but not the applicable maximum you’re being asked about. Above 8000 ft, the restriction typically shifts to a Mach number, but this question focuses on the range up to 8000 ft, where the limit is 320 knots.