INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
a. Carbon
b. Nickel
c. Nickel-Chrome
d. Chrome-Vanadium - ANSWER-A Piece of pipe has an AISI classification of A105, the major alloy is:
a. Chemical Exposure Sheet
b. Material Safety Data Sheet
c. Manufactured Substance Data Sheet
d. Hazardous Exposure Sheet - ANSWER-Which of the following contains information about chemicals
found on a job site?
a. Color properties of oxygen
b. Dissolvability of oxygen in water c.Liquefaction properties of oxygen d.Paramagnetic properties of
oxygen - ANSWER-One method of oxygen analysis focuses on the:
a. High-carbon steel
b. Low-carbon steel
c. Nickel Alloy
d. Nonferrous Alloy - ANSWER-Which of the following materials is selected when resistance to corrosion
or high temperatures is required?
a. Humidity level
b. Heat level
c. Oxygen content
d. MSDS content - ANSWER-Atmosphere testing must be conducted before entry into a confined space
to check for:
a. In pairs in the same enclosure
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
CORRECT ANSWERS 2025
a. Carbon
b. Nickel
c. Nickel-Chrome
d. Chrome-Vanadium - ANSWER-A Piece of pipe has an AISI classification of A105, the major alloy is:
a. Chemical Exposure Sheet
b. Material Safety Data Sheet
c. Manufactured Substance Data Sheet
d. Hazardous Exposure Sheet - ANSWER-Which of the following contains information about chemicals
found on a job site?
a. Color properties of oxygen
b. Dissolvability of oxygen in water c.Liquefaction properties of oxygen d.Paramagnetic properties of
oxygen - ANSWER-One method of oxygen analysis focuses on the:
a. High-carbon steel
b. Low-carbon steel
c. Nickel Alloy
d. Nonferrous Alloy - ANSWER-Which of the following materials is selected when resistance to corrosion
or high temperatures is required?
a. Humidity level
b. Heat level
c. Oxygen content
d. MSDS content - ANSWER-Atmosphere testing must be conducted before entry into a confined space
to check for:
a. In pairs in the same enclosure
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025