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NIMS MMS EXAM SCRIPT 2026 FULL
SOLUTION PRACTICE
โ The safest way to remove metal chips from a lathe or milling machine is to use a: Answer: Brush โ SDS stands for: Answer: Safety Data Sheet โ The threshold limit valued (TLV) found on SDS sheets is defined as: Answer: The safe limit of unprotected exposure to a material โ The LEL found on an SDS refers to the: Answer: Lower Explosive Limit โ HMIS stands for: Answer: Hazardous Materials Information System โ When should safety glasses be worn? Answer: All of the above โ The acronym for the government agency that regulates safety is: Answer: OSHA
โ Which of the following is not an important safety precaution? Answer: All of the above are important safety precautions โ Oily shop towels or wipes are stored in a red fireproof can with a lid to prevent: Answer: Fires through spontaneous combustion โ The first course of action to take if a material (solid) becomes lodged in the eye is to: Answer: Pull the top lid over the bottom lid โ The first course of action to take with a bleeding wound is to: Answer: Stop the bleeding by applying pressure to the wound โ The best technique for lifting is to: Answer: Lift with the legs and keep the back straight โ When operating a lathe, long hair, dangling jewelry or loose clothes can: Answer: Become caught in the lathe pulling the operator toward the machine โ Government safety regulations state that a person must wear a ____while working around material stored overhead, or when working around cranes or hoists. Answer: Hard hat
โ When using hand files, pinning refers to: Answer: Loading the file with metal chips โ Files should be stored: Answer: In a toolbox separated from each other โ The best way to clean chips out of a file is to use: Answer: File card โ The best lubricant to prevent wear and increase cutting efficiency for tapping common steel: Answer: Sulfur-based oil โ Which of the following combinations of gage blocks (from an 81 piece set) can be used to gage a length of 0.9528 inches? Answer: 0.1008, 0.102, 0. โ The process of displacing air between gage blocks for accurate measurements is called: Answer: Wringing โ To check the height of multiple parts with gage blocks, a machinist would use a: Answer: Dial indicator and digital height gage โ Surface finish is checked with a: Answer: Both B & C
โ A surface finish is as follows: Answer: The surface finish is 15 micro inches โ What is the most common type of surface finish callout? Answer: Roughness โ A part is considered a reject when: Answer: Dimensions are out of tolerance โ A sampling is referred to as a: Answer: Samples taken from a machine over a period of time โ Inspection plans are needed to: Answer: Coordinate inspection procedures B. Identify measuring tools C. Check dimensions in a repeatable and reliable way D. All of the above E. Only A and C โ The first thing to do when constructing an inspection plan is to: Answer: Select the critical and important dimensions to inspect โ The most important factor in selecting measuring tools for inspection is: Answer: Tolerancing of dimensions to inspect
โ What is the gage block height for an angle of 19 degrees on a 5" sine bar? Answer: 1. โ Thread percentage is dependent on the: Answer: Tap hole size โ The most accurate method for aligning a vise mounted on a vertical mill table is to: Answer: Use a dial indicator mounted on the quill or in a collet โ When dressing the grinding wheel, the diamond dresser should be located on the: Answer: Outfeed side of the wheel rotation (left side) โ When milling, tough material causes accelerated tool wear. Machinists can ___ to reduce tool wear and possible tool breakage. Answer: Decrease the spindle speed โ Reamers cutting oversize due to built up edges may be caused by: Answer: Excessive stock allowance โ Which material listed below is a ferrous material? Answer: Iron โ Which material listed below is a non-ferrous material? Answer: C. Aluminum D. Copper
โ Steel is primarily an alloy of Answer: Iron and Carbon โ What type of steel in SAE 1018? Answer: A. Plain Carbon B. Low Carbon โ What is the Carbon content of SAE 1018 Steel? Answer: .18% โ Which steel would be the hardest to bend? Answer: High Carbon โ When performing a spark test, which material would produce a longer straw colored spark with few forks? Answer: Low carbon โ Stainless steel in the 200 and 300 series is: Answer: A. Non- magnetic B. Contains chromium and nickel โ Characteristics of stainless steels in the 400 series are: Answer: Magnetic โ Chips from which material are highly flammable? Answer: Magnesium
โ What are the main alloying elements in AISI/SAE 4140 steel? Answer: Chromium-Molybdenum โ What is the carbon content of AISI/SAE 4140 steel? Answer: .40% โ A steel alloy that contains a minimum of 10% chromium is referred to as: Answer: Stainless Steel โ ____ is when steel is heated to a specific temperature in a furnace and then cooled rapidly. Answer: Hardening โ An alloy of iron and carbon is commonly referred to as: Answer: Steel โ
