Math Quiz Trainer Flashcards
You’re at FL370 traveling at 420KTAS with a 60Kt tailwind. ATC clears you to descent to 10000ft at VOR passage which is 104nm away. What is your rate of descent?
2100ft/min
2600ft/min
2000 ft/min
2400ft/min
2100ft/min
27000 feet, 480KGS, 104nm. 104NM / 8NM/min = 13min
27000 feet / 13min = 2100ft/min (round up)
You have to descend 12,000’ in 20 miles, your speed is .7 Mach. What should yourVSI be?
3800 FPM
4200 FPM
4100 FPM
4200FPM
12,000 ft/ 20 miles= 600 ft per mile
600 ft per mile X 7miles a minute = 4200
You are flying at 20000 feet with a thunderstorm 20nm in front of you. The radar look up angle is 5 degrees. How high is the thunderstorm?
28,000 ft
21,000 ft
25,000 ft
30,000 ft
30,000 ft
1 degree of radar elevation is equal to 100ft at 1nm.
5deg x 100feet x 20nm = 10000 feet. (Add to 20000ft to get 30000ft)
Winds are 340/28. RWY 1 in use. What is your crosswind?
9
16
18
14
14
Rule of six should be applied here 1/2 of wind=14
Flying direct to the station on the 180 degree radial, at 37000 feet, and 70 DME from the VOR. Approach tells you to cross 15DME on the 360 Radial at 10000 feet. What is your descent rate?
317 FT/NM (No airspeed given to convert it to FPM) or approx. 3 degree gradient
340 FT/NM (No airspeed given to convert it to FPM) or approx. 3 degree gradient
320 FT/NM (No airspeed given to convert it to FPM) or approx. 6 degree gradient
317 FT/NM (No airspeed given to convert it to FPM) or approx. 3 degree gradient
You need to lose 27000 feet and have 85NM to do it. 27000 ft/85NM = 317ft/NM
If you are given an airspeed in NM/min you can multiply it by 317ft/NM to get FPM.
What would have a faster Mach speed?
250KIAS at FL400 OAT -49 degrees C
250KIAS at 15K on a standard day
300KIAS at 5K on a standard day
300KIAS at 10K OAT 6 degrees C
250KIAS at FL400 OAT -49 degrees C
The coldest temperature is going to produce the lowest local speed of sound and thus the highest IMN. 250 at FL400 = 450KTAS, 300 at 10K = 350KTAS, 250 at 15K = 325KTAS, 300 at 5K = 325KTAS
MDA for the LOC 27 is 450’AGL, How far from the runway is the VDP?
- 8NM
- 5NM
- 4NM
- 0NM
1.5NM
450 ft/ 300ft/nm = 1.5nm (300 ft/nm is roughly a 3 degree glide path).
Visual Decent Point (VDP): A defined point on the final approach course of a non precision straight-in approach from which a normal decent from the MDA to the runway touch-down zone may commence, provided the runway or approach lights are clearly visible to pilot.
To calculate a 3 degree decent angle from the VDP t the runway, divide the groundspeed by 2, then multiple the result by 10 (100kts (GS) 2 x 10 = 500 fpm.
EEPP p. 77.
You’re holding in an aircraft that burns 3,000 lbs an hour on each of it’s three engines. You have 7500 lbs. of fuel on board. How long until fuel exhaustion?
20 mins
40 mins
50 mins
30 mins
50 mins
142 kts IAS on ILS with 20 kt headwind. What should your VSI be?
300
250
500
600
600
120/2= 60 add a zero = 600
You are at FL270, flying at .75IMN, and are 25 DME from the VOR. What descent gradient and VSI is required to be at 12000 feet over the VOR?
4800ft/min and 6 degrees
4100ft/min and 6 degrees
4600ft/min and 6 degrees
4500ft/min and 6 degrees
4500ft/min and 6 degrees
15000ft/25NM = 600ft/NM (remember 100ft/NM = 1 deg gradient), so 600ft/nm is 6 deg gradient. .75IMN = 7.5NM/min x 600ft/NM = 4500fpm descent rate.
You are flying at FL370 in cruise flight and the OAT increases 5 degrees C, and the headwind increases 5kts. What happens to your TAS and GS?
TAS increases by 6kts, therefore GS increases by 1kt
TAS increases by 10kts, therefore GS increases by 1kt
TAS increases by 4kts, therefore GS increases by 1kt
TAS increases by 6kts, therefore GS increases by 1kt
TAS increases approx. 1.2kts/1o C increase. So 50C x 1.2kts = 6KTAS increase
6KTAS-5KTS headwind = 1kt GS increase.
You’re at 1500 AGL in a plane that slows at 10 kts per mile. Your approach speed is 130 and you’re going 230. How far from the field to you want to begin slowing down, assuming a 3 degree glideslope?
15 miles
14 miles
10 miles
15 miles
100kt speed reduction / 10kts/NM = 10nm. The outer marker of a typical ILS is at 5nm, where you would want to be at approach speed. So, 15nm from the airport.
You are 6nm from the rwy on final and the localizer shows 1 degree of deflection. How far from the runway course are you?
.4nm (or 300 ft)
.1nm (or 600 ft)
.1nm (or 900 ft)
.1nm (or 600 ft)
VOR 2 degrees per dot with full scale deflection equal to 10 degrees
ILS localizer 0.5 degrees per dot with full scale deflection 2.5 degrees
ILS glidepath 0.14 degrees per dot with full scale deflection 0.7 degrees
So the old 60-to-1 rule comes into play here again. At 6mn there are 10 degrees/NM. So 1 degree is = to 0.1NM, and 0.5 degrees is = to 0.05NM which is about 300 feet.
ROT: 50’/NM per dot deviation (so 6NM = 300 ft)
ROT: 24’/NM per dot deviation off glidepath
You are at 25000 ft, there is a Level 5 thunderstorm 80nm in front of you. You tilt your radar up 1.5 degrees and the cell disappears. How high is the top of the thunderstorm?
37000 ft
31000 ft
35000 ft
32000 ft
37000 ft
1 degree of radar elevation is equal to 100ft at 1nm.
1.5deg x 100feet x 80nm = 150 x 80 = 12000 feet. (Add to 25000ft to get 37000)
You’re at 1500’ AGL and you are flying at 230KIAS. Your approach speed is 130KIAS and your aircraft slows at a rate of 10kts/NM. How far out from the runway do you need to slow down in order to shoot the ILS?
15nm
18nm
24nm
22nm
15nm
100kt speed reduction / 10kts/NM = 10nm. The outer marker of a typical ILS is at 5nm, where you would want to be at approach speed. So,15nm from the airport.
What is the higher TAS?
350KTAS at FL200 and -20deg C
250KCAS at FL370 and -40deg C
260KCAS at FL300 and -30deg C
350KTAS at 10000ft
250KCAS at FL370 and -40deg C
A quick ROT to use is KTAS = KIAS + ALT/200. So for 250 + 37000/200 = 250 + 185 = 435KTAS. 260 + 30000/200 = 410KTAS.
One aircraft departs ATL traveling at .7IMN and a second aircraft departs ATL 30 minutes later traveling .8IMN. How long before the second aircraft overtakes the first?
230 Minutes
160 Minutes
180 Minutes
210minutes
210 minutes
7NM/min x 30min = 210NM head start
Every min the second airplane is airborne it will gain 1NM on the first plane.
Landing runway 09 and winds are 050/30kts. What is the crosswind component?
18KTS
15KTS
22KTS
20KTS
20KTS
The rule of sixths…Relative to the runway 10deg=1/6, 20deg=1/3, 30deg=1/2, 40deg=4/6 50deg=5/6 60deg-90deg=6/6. 050deg is 40deg relative to 090. So 4/6 of the wind is crosswind. 4/6 x 30 = 20kts.