Q&A Forum
1106 questions found
Browse by module
A freely falling body, falling from a height of 2km, and assuming g = 10m/s2, will strike the ground in a time of
- 40s.
- 80s.
- 20s.
Can you give me the formula for this?
Reheat is the term used to describe
- adding fuel in the exhaust section.
- adding of fuel in the turbine section.
- adding of fuel in the compressor section.
By reheat do you mean afterburner?
Simplify (a+b)(a-c)(b-c) divided by (b+a)(c-a)(c-b).
- -1
- 1
- (a+b)(a-c)(b-c)
The first option seems more appropriate here
When a volume of air is compressed
- heat is gained.
- no heat is lost or gained.
- heat is lost.
please someone help me understand how this is. i thought heat is gained?
What is the purpose of the flow divider in a turbine engine duplex fuel nozzle?
- Allows an alternate flow of fuel if the primary flow clogs or is restricted.
- Provides a flow path for bleed air which aids in the atomization of fuel.
- Creates the primary and secondary fuel supplies.
what?
On a Hartzell prop with counterweights, full oil supply would indicate
- on-speed condition.
- overspeed condition.
- underspeed condition.
why?
On a (VP) cocoon bag, if the humidity indicator turns pink/lilac
- desiccant is effective and does not need changing.
- desiccant is ineffective and needs changing.
- desiccant is changed weekly.
why change the desiccant and not confirm if there is anywhere the humidity is entering from? what is the reference?
Induced drag
- is equal to the profile drag at Vmd.
- is equal to the profile drag at the stalling speed.
- is never equal to the profile drag.
Vmd ?
What moves the swash plate away from the minimum stroke position?
- Reduced inlet pressure.
- A spring.
- Increased servo pressure.
what moves the swash plate towards the minimum stroke position?
Calculate the area of the shape shown:
- 12 sq.ins.
- 14 sq.ins.
- 16 sq.ins.
Someone please explain why ?
Two Vectors are at 90 degrees to each other having magnitudes of 3N and 4N. The resultant is
- 5N.
- 1N.
- 7N.
how??
Damping in a servomechanism is easier to apply if
- the mechanism is light and has high inertia.
- the mechanism is light and has low inertia.
- the mechanism is heavy and has high inertia.
how??? please explain someone....thanks
The median of the values 20, 28, 17, 34, 40, 11, 34, 26 is
- 26.25.
- 27.0.
- 34.0.
how to solve this?
When an SCR is switched on it has
- low resistance.
- no change in resistance.
- high resistance.
Please write your comment here.
A triangle always has
- exactly one right angle.
- at least two acute angles.
- exactly two acute angle.
Please write your comment here.
The work done in lifting a mass of 2000 kg vertically to a height of 40 metres is
- 392.4 kJ.
- 784.8 kJ.
- 196.2 kJ.
how?
What is the area of the shape shown, in square centimeters?
- 1000
- 1130
- 1264
Could u tell me how ?
Log 9 - Log 3 + Log 4 =
- Log 10
- Log 12
- Log 16
how could it be log 12?
With the flaps lowered, the stalling speed will
- increase.
- decrease.
- not change.
help!!
The angular velocity of 500 RPM is, in rads/seconds is equal to
- 33.33pi rads/s.
- 52.36pi rads/s.
- 16.66pi rads/s.
how ?
For an aircraft climbing at a constant IAS the Mach number will
- increase.
- decrease.
- remain constant.
help!!
The fundamental frequency of a control cable is 10 Hz, the frequency of the 2nd Harmonic is
- 10 Hz.
- 20 Hz.
- 40 Hz.
any help with this ?
When the trailing edge flaps are lowered, the aircraft will
- pitch nose up.
- pitch nose down.
- yaw to one side.
how come?
An aircraft flying above the tropopause descends at a constant True Airspeed, its Mach No. will
- remain the same.
- decrease steadily.
- increase at a constant rate.
please explain.
How many people sign a CRS after scheduled maintenance?
- Two, one for mechanical activities and one for the avionics.
- One in each category.
- One only.
one person signs for A&C part and 1 for Avionics. Then how is the answer "one only"