MSA Quiz

Which of the following is NOT a method of performing an inspection for security of multiple fasteners on an LRU?

• (A) Visual Inspection

• (B) Dimension Inspection

• (C) Hardness testing

• (D) Torque Testing

• (E) Vibration testing

What is the purpose of a visual inspection?

• (A) To identify any obvious flaws such as fractures, burrs, or abnormalities

• (B) To measure the screw's dimension to ensure that they meet the required specifications

• (C) To test the hardness of the screw for high stress or wear

• (D) To test the screw's ability to withstand a specified torque without breaking or stripping

• (E) To examine the screw's surface for any imperfections or roughness that could affect its performance

What is the purpose of a hardness test?

• (A) To identify any obvious flaws such as fractures, burrs, or abnormalities

• (B) To measure the screw's dimension to ensure that they meet the required specifications

• (C) To test the hardness of the screw for high stress or wear

• (D) To test the screw's ability to withstand a specified torque without breaking or stripping

• (E) To examine the screw's surface for any imperfections or roughness that could affect its performance

What is the purpose of a torque test?

• (A) To identify any obvious flaws such as fractures, burrs, or abnormalities

• (B) To measure the screw's dimension to ensure that they meet the required specifications

• (C) To test the hardness of the screw for high stress or wear

• (D) To test the screw's ability to withstand a specified torque without breaking or stripping

• (E) To examine the screw's surface for any imperfections or roughness that could affect its performance

What tool is used to measure the dimension of a screw?

• Magnifying lens

• Caliper

• Torque wrench

• Indenter

What is the key difference between a self-locking nut and a non-locking nut?

• (A) A self-locking nut has a built-in locking mechanism, while a non-locking nut does not.

• (B) A self-locking nut is typically made of a different material than a non-locking nut.

• (C) A self-locking nut is always more expensive than a non-locking nut.

• (D) None of the above.

Which of the following is NOT an example of a self-locking nut?

• (A) Nylock nut

• (B) All-metal self-locking nut

• (C) Prevailing torque nut

• (D) Hex nut

What is the primary function of a wingnut?

• (A) To provide a quick and convenient way to tighten or loosen a fastener without the need for tools.

• (B) To prevent a nut from loosening due to vibration or other external forces.

• (C) To secure two nuts or bolts together.

• (D) None of the above.

What is the primary function of a check nut?

• (A) To provide a quick and convenient way to tighten or loosen a fastener without the need for tools.

• (B) To prevent a nut from loosening due to vibration or other external forces.

• (C) To secure two nuts or bolts together.

• (D) None of the above.

What is the key difference between a countersunk screw and a non-countersunk screw?

• (A) A countersunk screw has a tapered head that sinks flush into the surface of the material, while a non-countersunk screw has a flat head that protrudes from the surface.

• (B) A countersunk screw is typically made of a different material than a non-countersunk screw.
  

• (C) A countersunk screw is always more expensive than a non-countersunk screw.
  

• (D) None of the above.