Dennis Alwon said:Personally the max means the max given all possibilities.
I agree and well stated. This is why I always did poorly in verbal questions. It seems I either read to much into the question or not enough.crossman said:Personally, I dislike questions like this because it can trip up even the most astute NEC expert.
If you answer 20, I can say you are wrong, I was talking about the ultimate highest max ever allowed under any circumstance.
If you say 25, I can say you are wrong, i was talking about the maximum rating in Table 430.52
M. D. said:Crossman,. the maximum rating is not 20 because there is a circumstance which will allow 25 amps.
How on earth can 20 be a maximum when it is not?
crossman said:What is the maximum (go ahead and apply all your definitions to the word) allowable setting for the OCP if the 20 amp breaker will hold when the motor starts?
crossman said:.
"What is the largest breaker you could ever use on this pump in any case?" then I am with you. ..
M. D. said:I hope this is a joke, words have meanings it is how we communicate
M. D. said:Maximum is a word and it has meaning and it supports the 25 amp answer. If they wanted to limit the answer to the table value only ,.. they should have stated so
M. D. said:That is exactly what the question asked,... any other answer is not the maximum rating allowed
crossman said:It did not ask for the "maximum rating allowed". It asked for the maximum rating as defined by Table 430.52.
brother said:...What is the maximum rating for an inverse time circuit breaker used to provide
motor branch-circuit short-circuit and ground-fault protection for a residential 240 VAC, single-phase, ?
horsepower well pump motor, controller, and branch-circuit?
A) 30 amps, B) 25 amps, C) 20 amps, D) 15 amps.....
crossman said:...
Your use of "maybe" pretty much validates my claim that the writer's intent is a toss-up.:smile:
crossman said:here is a question for all of you....
2" Rigid Metallic Conduit shall be supported at intervals not to exceed a maximum of _____ feet.
A. 10
B. 12
C. 16
D. 20
crossman said:here is a question for all of you....
2" Rigid Metallic Conduit shall be supported at intervals not to exceed a maximum of _____ feet.
A. 10
B. 12
C. 16
D. 20
crossman said:Iwire:
But that 20 feet is a maximum under very specific conditions. Under other conditions, the maximum is 10 feet.
I say this is actually a bad question
Let's turn it around. Say an apprentice was running 2" rigid conduit and he came to you and asked what was the maximum distance he could use between supports. What would you tell him?
crossman said:here is a question for all of you....
2" Rigid Metallic Conduit shall be supported at intervals not to exceed a maximum of _____ feet.
A. 10
B. 12
C. 16
D. 20
To the installer, maybe, but not the NEC.windtech007 said:Doesn't it depend if ran vertical or horizontal?