Industrial Electrician Certificate of Qualification Free Assessment

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Convert binary to decimal for 100110
a) 38
b) 101
c) 33 + 6
d) 38,000
How close to a natural gas meter can a 30 A disconnect be placed?
a) 500 mm
b) 750 mm
c) 1 m
d) 1.5 m
A remote 32 V emergency lamp drawing 10 A is located 80 m from the battery pack. What size wire should be used to feed it?
a) #10 AWG
b) #8 AWG
c) #6 AWG
d) #4 AWG
A distribution control system is being used to control a steam boiler. The temperature monitored from North = 2000 degrees F. The thermocouple is linear type K signaling 0 ÷ 45 mV. The actual measured temperature is 1500 degrees F, but indicated temperature is 1223 degrees F. Which component is fault?
a) thermocouple
b) transmitter
c) control system
d) display
There are three conductors in a raceway carrying 120 amps each. What size of R90 copper conductors must be installed?
a) #2
b) #4
c) #6
d) #8
One of the major benefits of using relays or magnetic switches is that:
a) when heavy loads are connected, there is less disturbance to the system than would occur when using manual switches.
b) it is possible to use compact actuating devices for any type or size load.
c) overcurrent devices may be eliminated.
d) overload devices may be eliminated
Calculate the current through the zener.
a) 55 milliamps
b) 51 milliamps
c) 4 milliamps
d) 9 milliamps
Holding contacts are:
a) in series with the stop button
b) in parallel with the stop button
c) in parallel with the holding coil
d) in series with the start button
An electrician changes an HID luminaire lamp located 8 meters above grade. The safety equipment requirements are:
a) LAN tester
b) fall arrest harness
c) meg-ohmmeter
d) ohm-meter
A certified industrial electrician who installed the lock out is the only person that can remove it.
True
False
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