MASTER OPENBOOK EXAM #2

The various components required for a complete induction heating equipment installation shall be connected by properly protected _____.

I. coaxial cable    II. busbar     III. multiconductor cable

• I only

• II only

• II or III only

• I, II, or II

Conductors installed for interior wiring of a recreational vehicle shall have a minimum insulation rating of 90°C (194°F) and engine compartment wiring shall have an insulation rating of ___.

• 250°C (482°F)  

• 150°C (302°F)

• 125°C (302°F)  

• 90°C (194°F)

Coaxial cables for a fire alarm system shall be permitted to have copper covered steel center conductors with a minimum of 30 percent copper and shall be listed as Type ___.

I. FPL               II. FPLR                       III. FPLS                      IV. FPLP

• I and II only

• II or II only

• I, II, or IV only

• I, II, III, or IV

Remote control circuits for safety control equipment shall be classified as ___ if the failure of the equipment to operate introduces a direct fire or life hazard.

• Class 1

• Class 2

• Class 3

• None of these

In fixed electrostatic spray zones, signs shall be conspicuously posted to ___.

I.      restrict access to qualified personnel only

II.    identify emergency exit routes

III.  designate the zone as dangerous with regard to fire and accident

IV. identify the grounding requirements for all electrically conductive objects in a spray area

• I only

• I and II only

• I, III, and IV only 

• I, II, III, and IV only

In a park trailer, lighting switches shall be rated not less than ___ amperes 120/125 volts and in no less than the connected load.

• 10

• 15

• 20

• 25

A Class 1 power-limited circuit shall be supplied from a source having a rated output of not more than 30 volts and ___ volt amperes.

• 1000

• 1200

• 1500

• 2000

Transformers insulated with listed flammable liquids having a fire point of not less than 300°C shall be permitted to be installed in Type I or Type II building if the transformer rated ___ volts or less.

• 600

• 7200

• 35,000

• 69,000

___ of fuses and circuit breakers for emergency circuit overcurrent protection, will ensure selective clearing of fault currents, and increase overall reliability of the system.

• Frequent interchange

• GFCI protection

• Manual operation

• Coordination

Insulation of conductors intended for use in the secondary circuit of electric welders shall be ___.

I. flame retardant        II. sislicone      III. TBS            IV. TFE

• I only

• I & II only

• II & III only

• I & IV only