Instrument Tech Nccer Final Exam And Answers Graded A+ 2025.

Instrument Tech Nccer Final Exam And Answers Graded A+ 2025. 1) When is the BEST time to document each loop check for commissioning ? A. Prior to the start of inspection B. When all test and inspection activities are complete C. When updating information on a daily basis D. At the time each test is completed - Correct Answer D. At the time each test is completed (INST LVL4)(12410-16/ Section 3.2.0) 2) Teflon paste must not be used on : A. Nitrogen service B. Natural gas service C. Water service D. Oxygen service - Correct Answer D. Oxygen service (INST LVL 1 )(12109-14/Section 2.1.1) 3) A 24VDC power supply is not working . With your multimeter you verify no DC voltage . On the 120VAC input you measure 120V between hot and ground , and 72V between hot and neutral . What is the most likely cause of this ? A. Lost the ground B. Lost the hot C. Lost the neutral D. Lost the fuse - Correct Answer C. Lost the neutral 4) Gain increase when tube : A. Back bends are made B. Bend radius increases C. Size decreases D. Long radius elbows are used - Correct Answer B. Bend radius increases (INST LVL 2)(12302-15 section 2.1.1) 5) A temperature measuring device that produces a voltage as the temperature changes is a / an : A. RTD B. Thermistor C. Thermometer D. Thermocouple - Correct Answer D. Thermocouple (INST LVL 2) (12110-15 section 1.2.2) 6) A pressure piping code is found in : A. ANSI B 31.1 B. NEC 690 . C. OSHA1910 . D. ISA S 5.1 - Correct Answer A. ANSI B 31.1 7) When marking tubing for cutting , the preferred method is A. Scribe a mark into the tube with a sharp object . B. Mark the tube with a grease pencil C. Mark the tube with a felt tip pen D. Mark the tube with a crayon - Correct Answer C. Mark the tube with a felt tip pen 8) An example of direct measurement indicator is a : A. Pressure gauge B. Bulb thermometer C. Sight glass D. Flowmeter - Correct Answer C. Sight glass 9) On the image , how many hand valves are installed on Tank 1201C A. 1 B. 2 C. 3 D. 4 - Correct Answer C. 3 10) What is the first step in troubleshooting a problem in a system ? A. Turn off power to the instrument B. Stimulate an input C. Verify that there is a problem D. Stimulate an output - Correct Answer C. Verify that there is a problem 11) Where can the appropriate elevation of an instrument be found ? A. Location drawing B. P & ID C. Flow diagram D. Loop drawing - Correct Answer A. Location drawing 12) Chemical cleaning of tubing attached to instruments may cause damage to sensor A. Electronics