When wiring goes wrong - Study guides, Revision notes & Summaries

A Latching relay: Used for call registration,direction selection or as selector relays Two types are: Set/Rest are electrical and Mechanical Latching relays Need to know latching relay symbol, Its a box with shaded triangle in lower right hand corner. Which relay do you need to Order 710 Pg, 7 RPM = 60 ∙ ƒ ÷ P÷2 = Step 1. 60 x Frequency (Hz.) = Step 2. Poles ÷ 2 = Take answer 1 and ÷ by answer 2 = Know the formula for RPM 435 Pg. 5 If you are referring to a mego...

2g 2022 EXAM 2g 2022 EXAM QUESTIONS & ANSWERS | REVIEW FROM ACTUAL EXAM| Rated A+2g 2022 EXAM 1) What is the minimum diameter of a pressure gauge needed to perform leak test on gas piping? A. 2" B. 2 - 3/4" C. 3" D. 3 - 1/2" Correct Answer: C. 3" 2) Amp meter can read what? A. Pressure drop. B. Conductor magnetic field. C. Load in parallel wires. D. Direct power across loads. Correct Answer: B. Conductor magnetic field. 3) What would be the primary voltage of a furn...