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WorksheetsMod 7.7 quiz
Total questions: 19
Worksheet time: 10mins
When can an ohmeter be used to test for defective electrical components in a circuit?
When the power is off.
When the power is on.
Never, an ohmeter cannot be used.
How are metal parts bonded in an aircraft of non-metallic construction?
Using primary conductors to bond metal parts together.
Metal parts are bonded to a cage that is part of the aircraft structure.
Metal parts need not be bonded.
What protection is required on a cable loom that passes through a bulkhead?
A grommet fitted to the bulkhead.
The loom is covered with spi-wrap.
The loom is securely "P" clipped.
If it is required to use a cable which will not radiate energy the best cable to use would be:
screened twisted pair as used in databuses.
as large a current carrying capacity cable as possible.
coaxial cable.
Bonding checks are carried out on an aircraft to:
reduce the effects of galvanic corrosion.
ensure minimum interference from precipitation static
ensure that all crimped terminations have a minimum resistance.
The resistance between the centre core of a coaxial cable and the braiding(screening)should be approximately:
0.05 ohms.
infinity.
10kohms.
Electrical cables are chosen for a given circuit according to the:
impedance of the device being powered.
current required.
heat dissipation required.
The white end of a plastic insert/extract tool is used to:
insert pins.
extract pins.
lock pins.
When using AMP crimp tools the acronym PIDG stands for:
Pre Insulated Diamond Grip.
Pre Inspection Diamond Grip.
Protective Insulation Diamond Grip.
The amount of conductor which should protrude beyond the barrel of a terminal is:
1/32 inch
1/64 inch
1 mm
After crimping a PIDG termination it can be safely used if:
there are no markings found on it.
the termination can be pulled hard without its wire coming out.
it has the correct dot code stamped onto it.
Electrical crimp joint testing includes the following:
Tensile strength and Voltage drop tests
Tensile strength and Current capacity tests
Tensile strength and Insulation tests
Which of the following statements is true regarding AWG conductors:
The larger the number the smaller the size of the conductor and greater the resistance value
The smaller the number the smaller the size of the conductor and greater the resistance value
The larger the number the smaller the size of the conductor and smaller the resistance value
Which of the following statements is correct, regarding the use of flexible bonding leads in Flight Control Systems?
Flexible bonding leads should not be used in Flight Control Systems
They should be kept as short as possible to avoid fouling the control surface mechanism
They should be kept as long as possible to avoid fouling the control surface mechanism
Which of the following is not a major factor when determining the current rating of a conductor?
Number of cables in a loom
Duration current is flowing
Cable bend radius
The adjustment pins on an AMP crimp tool when set at position 1:
sets the jaws to their largest opening for thick insulation
sets the jaws to the smallest opening for thin insulation
sets the jaws to the smallest opening for thick insulation
When carrying out a bonding test on an aircraft, which Test Set cable is connected to the main earth point?
The 6 foot cable
The 60 foot cable
It does not matter which cable is connected to the main earth point
Crimping pliers used for crimping thinwall cables may have different colour handles. This is because:
the crimps used have two identification colours.
they indicate the colours of the low temperature and high temperature crimps that may be used.
two different size crimps with different identifying colours may be crimped with the same pliers.
When using “P” Clips to support cabling they must be fitted to ensure:
the cable loom is held flush against the airframe.
the cable loom is held away from the airframe.
either a or b dependent on the use & purpose of the assembly
