7. Maintenance practices - Q&A
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When leak testing with a colour contrast field kit, the soak time for a component less than 1/8 in. (3mm) thick would be
- at least twice the normal required soak time.
- at least 3 times the normal soak time.
- at least the standard normal soak time.
I dont get the question.
To check the structure of a wing
- ultrasound NDT methods are used.
- high voltage X-rays are used.
- low voltage X-rays are used instead.
low voltage x rays are used
When using a D.T.I. to check the run-out of a shaft, readings of -15 to +25 would indicate a run-out of
- 0.025 inches.
- 0.020 inches.
- 0.040 inches.
how is it calculated plz help .
If the operator varies the content of the maintenance schedule, what action must be taken?
- Amend the Maintenance Schedule first and then seek CAA approval.
- Await CAA approval before amending the Maintenance Schedule.
- Amend the Maintenance Schedule without further approval.
whenever manufacturer makes any changes in the publication it is the duty of operator to revise their maintenance schedule and apply for approval.Authority may take time to approve.so its first step is to amend and seek for approval rather than waiting for CAA approval before amending because in some cases it may be mandatory and needs to be done in very short period of time.
please explain those who agree to
Await CAA approval before amending the Maintenance Schedule
A thread on a drawing is labeled 1/2-20 UNF - 1B. The thread is
- bi-directional.
- external.
- internal.
how come, please explain :)
The sharpest bend that can be placed in a piece of metal without critically weakening the part is called the
- maximum radius of bend.
- minimum radius of bend.
- bend allowance limit.
souldnt it be maximum radius...........if not please explain
Which type crack can be detected by magnetic particle inspection using either circular or longitudinal magnetisation?
- 45degrees.
- longitudinal.
- transverse.
which crack is this?
A 3 1/2 bit multimeter will indicate readings up-to
- 999.
- 1999.
- 19999.
im not quite understand why..please help me and explain..
Which of the following NDT methods requires that the surface of the test piece is cleaned down to bare metal?
- Eddy Current.
- Magnetic Particle.
- Dye-penetrant.
Why is this not eddy current?
When torque loading, a wrench should be selected where the required value falls
- at the top end of the range.
- in the middle of the range.
- at the bottom end of the range.
should torque be mid range?
Avdel rivets are closed by
- a broaching process.
- a tapered mandrel.
- a squeezing process.
broaching process ?
Avdel rivets are closed by
- a broaching process.
- a tapered mandrel.
- a squeezing process.
broaching process ?
A micro-shaver is used to
- cut rivets to the required length before forming.
- mill the rivet head after forming.
- trim the rivet shank diameter before installation.
What is Mill the revit Head?.
A Silver coated conductor in an unpresurised area is subject to moisture and has a damaged coating would be likely to cause
- Wet Arc Tracking.
- Silver Migration.
- Red Plague.
plz explain the Question and answer
How is a D.T.I. initially set up?
- The gauge plunger should be fully extended and then the needle zeroed.
- The gauge plunger should be partly depressed and the needle zeroed.
- The needle should be zeroed first, then the plunger fully extended.
plz explain how gauge plunger should be partly depresed and needle zeroed in D.T.I
Whenever possible a functional test should be carried out on an aircraft using which power supply?
- The aircraft battery.
- The aircraft generators.
- An external supply.
anyone got a reference for this question? i would have thought best option is to use the aircraft generators where possible as you would then be checking the entire system.
When an aircraft has been reweighed under EU OPS, what should be done to the old Weight and Balance Report?
- Kept in the aircraft technical logbook.
- Destroyed after 3 months.
- Kept in the weight and balance records.
ive just read some notes that say weight and balance reports should be retained in the weight and balance schedule. anyone got any info on this subject?
A fire resistant cable is proof tested by exposure to a standard fire for
- 5 minutes.
- 15 minutes.
- 30 minutes.
is this correct? anyone got any info on fire proof cables. I would of thought 15 mins would be the correct answer
The riveting defect in the figure shown is
- excessive hammering on the rivet head.
- the dolly was held at an angle.
- the snap was not square.
explain please :)
The damping force in a meter
- prevents oscillation of the pointer.
- returns the pointer to zero.
- assists the pointer across the scale.
Does this question make sense to anyone?
If the aircraft is away from base who may certify the second part of the duplicate inspection?
- a pilot with a current licence for the aircraft type.
- engineer after obtaining approval from maintenance control center.
- any licensed engineer holding type approval.
Wouldn't this be based on company approvals? a pilot with a license wouldn't be able to certify duplicates, unless he had been trained and be given a company approval.
The length of a hose assembly with elbowed end fittings is taken from
- the maximum length of the straight hose portion.
- the extreme overall length of the assembly.
- the centre of the bore at the nipple extremity.
The length of a hose assembly with elbowed end fittings is taken from??? please explain it??
When manufacturing aircraft control cables, the cable can be cut by
- using a hacksaw with the cable held under tension.
- using an oxy-acetylene cutting torch.
- using a chisel on a flat metal surface.
can neone help me wid dis questn plz?