Electrical ppt 8

What must be ensured about leads, probes, and instruments before testing begins?

• They are new and shiny.

• They are in good condition and undamaged.

• They are expensive.

• They are lightweight.

What is the purpose of shrouding the connectors?

• To enhance safety

• To improve aesthetics

• To reduce weight

• To increase conductivity

What should be robust in the equipment?

• The leads

• The casing

• The display

• The buttons

What is the purpose of having a barrier on the leads?

• To prevent access to terminals

• To improve signal quality

• To enhance appearance

• To reduce weight

What is the maximum amount of exposed conductor that is allowed?

• 4mm

• 6mm

• 8mm

• 10mm

What can multimeters check using the resistance setting?

• If a cable has gone open circuit

• If a cable is too long

• If a cable is too short

• If a cable is insulated

What is the role of the dial on the multimeter?

• To adjust the brightness

• To select the measurement type

• To change the battery

• To turn the device on/off

What is the purpose of the magnetic field in the context of the digital clamp meter?

• To generate electricity

• To interpret current flow

• To cool the device

• To light up the display

What do the instruments cater for in fixed wiring installations?

• Only insulation testing

• Only continuity testing

• Both insulation and continuity testing

• Neither insulation nor continuity testing

Who should carry out the test for measuring impedance in a live circuit?

• A novice electrician

• A competent electrician

• A homeowner

• A student