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Worksheetsrecap the previous session 2
Total questions: 26
Worksheet time: 13mins
Generally, any voltage above __________ volts is considered dangerous.
6
30
12
120
Generally, any current flow through the body above __________ is considered dangerous.
5 milliamperes
5 amperes
1 ampere
15 amperes
According to Ohm's law, assuming a body path resistance of 100 ohms, what amount of current would flow if a person came contact with 120-V?
1.2 amperes
12 milliamperes
0.833 amperes
833 milliamperes
The electric shock intensity __________.
increases with an increase in current flow
is determined in part by the pathway the current takes through the body
increases with the length of time of exposure
all of these
The amount of current flowing through a body is equal to __________.
E / R
E x R
P / R
P x R
When a current is still applied to an unconscious victim of electrocution, your priority is to __________
turn off the power or separate the victim from the current
locate a telephone to call 911
administer artificial respiration
loosen any tight portions of clothing
An arc fault is the ball of fire that explodes from an electric __________.
series circuit
short circuit
parallel circuit
open circuit
Appropriate attire for a job site could include:
A hard hat
Safety shoes
Safety goggles
All of these
Material or equipment should be kept at least __________ feet away from high-voltage overhead power lines.
2
8
4
10
A __________ space is one that has a restrictive entrance or exit by way of location, size or means.
confined
constricted
safe
restricted
When installing new machinery, ensure that all metal framework is efficiently and permanently __________.
grounded
isolated
insulated
painted
Safety light curtains create a curtain of photoelectric light beams between a(n) __________and a __________.
emitter, receiver
source, sink
positive, negative
positive, negative
Which of the following safety solutions is most suitable for monitoring the position of a guard or gate?
Safety laser scanner
Emergency stop controls
Safety light curtain
Safety interlock switches
The __________ function of an emergency stop requires that the control process cannot be started again until the actuating stop switch has been reset to the on position.
automatic
overload
manual
self-holding
Which of the following safety solutions is most suitable for safeguarding the interior of robotic work cell?
Emergency stop controls
Safety interlock switches
Safety light curtain
Safety laser scanner
An exposed live wire makes contact with the metal frame of an ungrounded piece of electrical equipment. As a result:
the fuse will blow, or the breaker will trip
the metal frame will be live
the equipment will not operate at all
all of these
The purpose of bonding non-current carrying metal parts of an electrical system is to
establish a low resistance path for fault current
limit the touch voltage when metal parts are energized by a ground fault
facilitate the operation of overcurrent protection devices
all of these
If the current in the neutral wire is __________ the current in the hot conductor, a ground fault condition exists.
the same as
twice
greater than
less than
A GFCI protects against the most common form of electric shock hazard, the
line-to-line short circuit
ground fault
static discharge
overload
A GFCI circuit breaker or receptacle monitors
the current flow in the live conductor.
any difference in current flow between the live and neutral conductor.
the current flow in the neutral conductor.
the sum of the current flow in the live and neutral conductor.
Electrical __________ is the process of placing a danger tag on the source of electrical power, which indicates that the equipment may not be operated until the danger tag is removed.
tagout
lockout
remediation
certification
"Dead" circuits should be
checked by momentarily touching them
locked out and tagged out before starting any repairs
checked by metering the voltage
both b and c
All facets of the electrical industry apply the __________ as a minimum standard for the installation of electrical systems.
ABC
PBC
NEC
ANA
The National Electrical Code (NEC)
outlines the minimum requirements that must be met for a safe wiring installation
outlines the ideal requirements for a wiring installation
is a manual designed to teach how to properly wire houses
Governs safety in the workplace
In case of fire in the workplace, it is your responsibility to
Disconnect electrical power
Ensure all personnel leave the danger area in an orderly manner
Trigger the nearest fire alarm
all of these
Which of the following develops standard frame sizes for motors?
NEMA
IEEE
IEC
NEMA and IEC
