Skills and Trades

Replies / Views	Last post
Discuss the difference between a load center and a fused disconnect. What will be an ideal ... Started by londonang	3 Replies 82 Views	Jul 26, 2018 by cascooper22
Define the term saturation as it applies to an electromagnet. What will be an ideal ... Started by j.rubin	1 Replies 63 Views	Jul 26, 2018 by kilada
Impedance is the total opposition to an AC circuit caused by inductive reactance, capacitive ... Started by go.lag	1 Replies 39 Views	Jul 26, 2018 by tdewitt
The units of impedance are ohms. Indicate whether the statement is true or ... Started by asd123	1 Replies 20 Views	Jul 26, 2018 by miss.ashley
Explain the principle of electromagnetic induction. What will be an ideal ... Started by imowrer	3 Replies 64 Views	Jul 26, 2018 by soda0602
The rms voltage in an AC circuit is 110 V, the peak voltage will also be 110 V. Indicate whether ... Started by chandani	1 Replies 62 Views	Jul 26, 2018 by HandsomeMarc
A main circuit breaker panel (load center) is the point where incoming voltage is connected in a ... Started by 123654777	1 Replies 43 Views	Jul 26, 2018 by Kingjoffery
Rms voltage is the voltage measured by a VOM meter. Indicate whether the statement is true or ... Started by theo	1 Replies 56 Views	Jul 26, 2018 by poopface
The strength of the magnetic field of a permanent magnet can be changed easily. Indicate whether ... Started by xclash	3 Replies 55 Views	Jul 26, 2018 by bubulittle310@msn.cn
Provide an example of a step-up transformer in a heating system. What will be an ideal ... Started by JMatthes	1 Replies 18 Views	Jul 26, 2018 by 31809pancho
If a circuit has two large refrigeration or air-conditioning compressor motors and has a low power ... Started by lilldybug07	1 Replies 62 Views	Jul 26, 2018 by durant1234
Polarity of an electromagnet can be changed by ________. A) changing the amount of current flow ... Started by saraeharris	1 Replies 91 Views	Jul 26, 2018 by Dominic
The VA rating for a transformer is determined by multiplying the voltage at the secondary winding by ... Started by PhilipSeeMore	3 Replies 38 Views	Jul 26, 2018 by dawsa925
Explain how inductance is used in the operation of a transformer. What will be an ideal ... Started by clippers!	1 Replies 31 Views	Jul 26, 2018 by dmurph1496
Discuss how it is possible to have a control transformer whose primary winding can be connected to ... Started by rosent76	1 Replies 57 Views	Jul 26, 2018 by debra928
Explain how you would test for 240 and 120 V AC in a fusible disconnect on the line-side and ... Started by mp14	1 Replies 62 Views	Jul 26, 2018 by ririgirl15
Explain why a control transformer is required in some air-conditioning systems. What will be an ... Started by vHAUNG6011	3 Replies 10 Views	Jul 26, 2018 by Jadwiga9
If the voltage L1L2 is 240 V and the voltage L1N is 120 V, the transformer is connected as a delta ... Started by newbem	1 Replies 54 Views	Jul 26, 2018 by bassamabas
The secondary voltage is larger than the primary voltage in a step-up transformer. Indicate ... Started by ss2343	1 Replies 70 Views	Jul 26, 2018 by katheyjon
The 208 V from L2 to N for a high-leg delta transformer is usable for compressor loads that require ... Started by HCHenry	1 Replies 40 Views	Jul 26, 2018 by JaynaD87
The air-conditioning or refrigeration system is connected to the ________of a fused disconnect. ... Started by Anajune7	3 Replies 73 Views	Jul 26, 2018 by dajones82
A transformer that is wired as a wye transformer has ________. A) 480 and 240 V B) 480 and 110 V ... Started by MGLQZ	1 Replies 51 Views	Jul 26, 2018 by Jadwiga9
Explain why the rotor rotates when a voltage is applied to the stator of an AC motor. What will ... Started by lunatika	1 Replies 31 Views	Jul 26, 2018 by atrochim
The AC split-phase motor is called an induction motor because it uses a transformer with a capacitor ... Started by bucstennis@aim.com	1 Replies 73 Views	Jul 26, 2018 by bd5255
The run winding is physically placed offset from the start winding in the stator of an AC motor to ... Started by WhattoUnderstand	3 Replies 89 Views	Jul 26, 2018 by blfontai