Technical Measurements Flashcards

Why must ramp scales used for cargo and bag weights be calibrated on a regular schedule?

Answer: So recorded weights stay accurate for weight and balance

Accurate scale readings are needed for correct load sheets and aircraft balance.

Hot temperatures make a given weight of jet fuel take up more volume. What does this mean for fuel density?

Answer: Density goes down as temperature rises

Fuel expands when warm, so its density falls and each gallon weighs less.

How many liters are in one US gallon, approximately?

Answer: 3.785 L

One US gallon equals about 3.785 liters.

A tug's drawbar pull is listed as 5,000 lbf. What does that figure measure?

Answer: The pulling force the tug can apply

Drawbar pull is the tractive force the tug can apply to the load it is towing.

When loading bulk cargo, the load sheet usually expects compartment weights given in:

Answer: The unit specified by the carrier's load control (lb or kg)

Compartment weights must be reported in the unit the carrier's load control uses so the figures are consistent.

A belt loader's maximum load rating is 300 kg. About how many pounds is that?

Answer: 661 lb

300 kg × 2.205 ≈ 661 lb.

A temperature of 14°F on a winter ramp equals what in Celsius?

Answer: −10°C

°C = (°F − 32) × 5/9 = (14 − 32) × 5/9 = −10°C.