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Sample Electrician Red Seal Exam Practice Questions
Which precaution is taken first when working on an ionized dust-collection system?
A. Clean the system.
B. De-ionize the system.
C. De-energize the system.
D. Install grounding jumpers.
ANS. C
What type of signal does a pressure transmitter output in an environmental regulating system?
A. 0 to 5 V AC.
B. 0 to 5 V DC.
C. 4 to 20mA AC.
D. 4 to 20mA DC.
ANS. D
During the operating cycle of an electric central warm air furnace, in what order are the contacts controlling the blower motor arranged to operate, in relation to those of the heating elements?
A. Close first and open last.
B. Close last and open first.
C. Close last and open last.
D. Close first and open first.
ANS. A
When the input to a 0 - 10 V, 6 bit, Digital to Analog (D/A) converter changes from (binary) 100110 to 100111, how much has the output voltage changed?
A. 0.3 V
B. 1.6 V
C. 0.0159 V
D. 0.159 V
ANS. D
When checked with an ohmmeter, a capacitor reads 0 Ω. What is the capacitor’s condition?
A. Open-circuited.
B. Short-circuited.
C. Grounded.
D. Serviceable.
ANS. B
PLC in the assembly line has static on the inputs. What is the cause?
A. Defective motor.
B. Failed power supply.
C. Defective drive.
D. Failed bond conductor.
ANS. D
Which component of an off-line UPS prevents AC voltage spikes from reaching the load?
A. Rectifier.
B. Lead Acid Batteries.
C. Inverter.
D. Surge Suppressor.
ANS. D
How many No.12 AWG conductors are allowed in a size 21 EMT?
A. 6
B. 9
C. 11
D. 12
ANS IS IN THE PACKAGE
This exam prep Package is an essential tool for any 309A & 442A Electrician student preparing to write the Red Seal exam. Each practice test closely imitates the Red Seal exam in content and difficulty level.
Electricians must read and interpret standards, prints, drawings and codes for layout and installation of electrical equipment. They install, service and maintain electrical components such as lighting fixtures, switches, conduit and electrical controls. They test electrical systems and continuity of circuits using test equipment to ensure system safety and compatibility. They conduct preventative and predictive maintenance programs and keep maintenance records. Industrial electricians may specialize in maintenance functions in areas such as high voltage, building automation and process control
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