ELEC 6011 - Introduction to Electricity (Chp 15) Flashcards
An open circuit is one in which:
A) A switch is closed B) The wire is bare C) The current flows through the resistance D) A switch is open E) Voltage may exit
D) A switch is open
In accordance with the Electrical Code, circuits and appliances should be:
A) Waterproof B) White C) NFPA approved D) Connected to ground E) CGA approved
D) Connected to ground
When an overload occurs on a system protected by a circuit breaker, the circuit breaker opens __________ and must be closed __________.
A) Manually, manually B) By itself, by itself C) By itself, manually D) Manually, by itself E) By itself, remotely
C) By itself, manually
When a person receives an electrical shock, this shock can be lethal because of:
A) Resistance
B) Voltage
C) Ungrounded appliance
D) Length of time the shock lasts
E) Current
E) Current
All receptacles that are outdoors, in bathrooms or supply power to water fed appliances are required to be protected by a/an:
A) Emergency stop B) Fuse C) GFI D) Trap E) Circuit breaker
E) Circuit breaker
Read the Following dials and select the correct energy reading
A) 3188 this is the answer B) 8814 C) 4188 D) 8713 E) 3178
The buildup of electrical pressure on an object which does not flow is called:
A) Corporeal electricity B) Juminal electricity C) Dynamic electricity D) Metaphysical electricity E) Static electricity
E) Static electricity
What is the wattage in an electrical circuit when 5 amps of current flow under a pressure of 24 volts?
A) 90 watts B) 0.2083 watts C) 240 watts D) 4.8 watts E) 120 watts
C) 240 watts
An electric grinder uses 45 watts for 3 hours. How much energy will show on an electric meter?
A) 15 kwh B) 0.135 kwh C) 1500 kwh D) 1350 kwh E) 0.07 kwh
B) 0.135 kwh
The flow of electrons in a uniform direction is called?
A) Potential difference B) Direct current C) Electromotive force D) Voltage drop E) Electrical current flow
E) Electrical current flow
Rubber, glass, plastic, and ceramics are examples of:
A) Conductors B) Neutrons C) Convectors D) Circuits E) Insulators
E) Insulators
The white wire back to the generator in an electrical circuit is known as a __________ wire.
A) Brown B) Hot C) Black D) Neutral E) Cold
D) Neutral
A continuous, unbroken path from a current-producing device to a current-consuming device and back again to the current-producing source is a:
A) Route B) Ring C) Circuit D) Generator E) Circle
C) Circuit
A device which has a primary and a secondary winding, which is used to either stepdown or step up voltage in a circuit, is called a:
A) Switch B) Fuse C) Wall receptacle D) Circuit breaker E) Transformer
E) Transformer
The most basic safety device used to prevent damage to electrical equipment and supply systems is the:
A) Resistor B) Fuse C) Ground wire D) Switch E) Circuit breaker
B) Fuse
If the power dissipated by a resistor is 1.2 kW when supplied with 110 volts, the amperage will be _____ amperes.
A) 1320 B) 19.006 C) 10.909 D) 132 E) 91.666
C) 10.909
The reduction in voltage across a resistor or load in an electrical circuit is known as the:
A) Amperage draw B) Wattage C) Voltage drop D) Resistance E) Conductive loss
C) Voltage drop
In fluorescent lighting systems, starting the light frequently may cause:
A) Short lamp life B) Blinking of the lamps C) Blackening at the end of the lamps D) The ends of the lamps to stay lit E) Colour and brightness differences within the lamp
A) Short lamp life
A material that will not carry an electrical current is called a/an:
A) Ampere B) Insulator C) Circuit D) Conductor E) Switch
B) Insulator
Negatively charged particles rotating about the center of an atom are called?
A) Molecules B) Neutrons C) Protons D) Electrons E) Shell
D) Electrons
To avoid fake or unsafe electrical equipment, you should ensure it is certified by:
A) CSA
B) CBC
C) ASA
D) AMA
A) CSA
