pnd cHPT1-3

What is the safe voltage limit for DC supplies?

• 10V

• 24V

• 50V

• 100V

In the RBN, what system is used to isolate electrical equipment safely?

• Red Alert System

• Lockout Tagout System

• Tag-Out Control System

• Isolation Board System

What minimum current can cause a person to be unable to release an electric device?

• 1mA

• 5mA

• 10mA

• 15mA

What is the recommended body resistance under normal conditions?

• 2500 ohms

• 500 ohms

• 640 ohms

• 1500 ohms

Which item must be worn when working on live equipment?

• Fireproof clothing

• Rubber gloves

• Safety helmet

• Ear defenders

In a generator, the rotating part is called the:

• Stator

• Field

• Rotor

• Core

An EMF is induced when a conductor:

• Stays stationary in a magnetic field

• Moves through a magnetic field

• Is heated

• Is cooled

What type of magnetic source is commonly used in ship generators?

• Natural magnet

• Permanent magnet

• Coil windings supplied with DC

• Solar magnet

Which factor does NOT increase the EMF induced in a conductor?

• Increasing magnetic field strength

• Increasing speed of rotation

• Increasing number of conductor turns

• Decreasing conductor size

The stator is the part of the generator that:

• Rotates

• Remains stationary

• Generates magnetic field

• Moves the conductor