Mod 7.7 quiz

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