Water Based Layout Exam Nicet Level 1 Questions With Correct Answers
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Nicet
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Nicet
Water Based Layout Exam Nicet Level 1 Questions With
Correct Answers
Which of the following should you inspect on an extension cord before each use?☑️Correct
Ans-The grounding prong & the insulation for nicks, cuts, or damage
Water Based Layout Exam Nicet Level 1 Questions With
Correct Answers
Which of the following should you inspect on an extension cord before each use?☑️Correct
Ans-The grounding prong & the insulation for nicks, cuts, or damage
________ indicates a mandatory req. according to NFPA definitions.☑️Correct Ans-Shall.
(Ref. NFPA 13 2016, Sec. 3.2.4.)
100 GPM is flowing through 100' of 1 1/4 in. Sch. 40 pipe. How many feet of 1 1/2 in. pipe will
produce the same friction loss?☑️Correct Ans-Assume this is Schedule 40 pipe, C = 120. Use
the Hazen-Williams formula to calculate the friction loss for the 1 ¼ in. pipe and the 1 ½ in.
pipe.
For 1 ¼ in. pipe (ID = 1.38):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
,120 1.85 x 1.38 4.87
P friction loss = 0.672 psi/ft
For 1 ½ in. pipe (ID = 1.61):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
120 1.85 x 1.61 4.87
P friction loss = 0.317 psi/ft
Step #2: Determine the total friction loss for 100 gpm flowing through 100 ft. of 1 ¼ in.
Schedule 40 black steel pipe: 100 ft. x 0.672 psi/ft = 67.2 psi
, Step #3: Determine the pipe length to produce the same friction loss in the 1 ½ in. pipe:
y ft. x 0.317 psi/ft = 67.2 psi
y = 67.2 ÷ 0.317
y = 212 ft.
A basic contract: (choose all that apply)☑️Correct Ans-Contains the names of the parties
involved, References the contract documents, Discusses the work that is to be done, and
Discusses start and completion dates.
Define both the constant, y, and the exponent ,z, for q in the Hazen-Williams friction loss
formula shown Below:
P = L x (y x Q^z)
(c^1.85 x d^4.87)☑️Correct Ans-4.52, 1.85.
Reference NFPA 13 2016 Section 23.4.2.1.1.
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