PSI Online Practice Examination Questions and Answers (100% Pass)
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Course
Cosmetology
Institution
Cosmetology
PSI Online Practice Examination
Questions and Answers (100% Pass)
Live parts of generators shall not be exposed to accidental contact where accessible
to unqualified operated persons if their voltage is greater than which of the
following?
1. 30 volts to ground
2. 40 volts to ground
3. 50 vo...
PSI Online Practice Examination
Questions and Answers (100% Pass)
Live parts of generators shall not be exposed to accidental contact where accessible
to unqualified operated persons if their voltage is greater than which of the
following?
1. 30 volts to ground
2. 40 volts to ground
3. 50 volts to ground
4. 60 volts to ground - Answer✔️✔️-445.14 Protection of Live Parts. Live parts of
generators operated at more than 50 volts to ground shall not be exposed to
accidental contact where accessible to unqualified persons.
Use of a higher class motor overload relay may preclude the need for which of the
following?
1. a shunt
2. a separate controller circuit
3. a separate terminal enclosure
4. selection of a higher trip current - Answer✔️✔️-
A panelboard for a mobile home shall be rated not less than which of the
following?
4. 60 amperes - Answer✔️✔️-550.11 (A) Disconnecting Means. A panelboard shall
be rated not less than 50 amperes....
The storage batteries used as a source of power for emergency system shall be of
suitable rating and capacity to supply and maintain the total load for a minimum of
how long?
1. 45 minutes
2. 60 minutes
3. 75 minutes
4. 90 minutes - Answer✔️✔️-III 700.12 (A) Storage Battery used as a source of
power for emergency systems shall be of suitable rating and capacity to supply and
maintain the total load for a minimum period of 1 1/2 hours. ( 4. 90 minutes)
What is the permissible noise exposure limit for an 8-hour day that, if exceeded,
requires hearing protection to be provide? - Answer✔️✔️-Cal/OSHA Table 3
Allowable Exposure Levels to Sound (page 103)
90dBA - 8 hours
For pool equipment, the disconnecting means for all ungrounded conductors shall
be readily accessible and within sight from its equipment and shall be located a
minimum of how many feet horizontally from the inside walls of a pool?
4. 10 feet - Answer✔️✔️-680.12 Maintenance Disconnecting Means Each means
shall be readily accessible and within sight from its equipment and shall be located
at least 1.5 m (5 ft.) horizontally from the inside walls of a pool.
For other than a totally enclosed switchboard or switchgear, what is the minimum
amount of space that shall be provided between the top of an unshielded
switchboard or switchgear and any combustible ceiling?
1. 18 inches
2. 24 inches
3. 30 inches
4. 36 inches - Answer✔️✔️-408.18(A) Clearances
From Ceiling. For other than a totally enclosed switchboard of switchgear, a space
not less than 900mm (3 ft.) shall be provided between the top of the switchboard or
switchgear and any combustible ceiling
What is the minimum branch-circuit rating for ranges of 8-3/4 kW or more?
1. 20 amperes
2. 30 amperes
3. 40 amperes
4. 50 amperes - Answer✔️✔️-210.19(A)(3) Household Ranges and Cooking
Appliances. For ranges of 8-3/4 or more rating, the minimum branch-circuit rating
shall be 40 amperes
Equipment grounding conductors of bare or insulated aluminum or copper-clad
aluminum shall not be terminated within how many inches of the earth?
1. 6 inches
3
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