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FREE AVIATION AND STUDY GAMES ABOUT SHEET METAL
EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -143 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Select the alternative which best describes the function of the flute section of a twist drill.
Answer:
Forms the cutting edges of the drill point Question 2: How does acoustic emission testing detect defects in composite materials?
Answer:
By picking up the "noise" of any deterioration that may be present
Question 3: What is the most common method of cementing transparent plastics?
Answer:
Soak method Question 4: A piece of sheet metal is bent to a certain radius, the curvature of the bend is referred to as the
Answer:
Bend radius
Question 5: (1) When performing a ring (coin tap) test on composite structures, a change in sound may be due to damage or transition to a different internal structure.(2) The extent of separation damage in composite structures is most accurately measured by a ring
Answer:
Only no. 1 is true
Question 6: Rivet pitch is the distance between the
Answer:
Centers of adjacent in the same row Question 7: What is the purpose of a gusset or gusset plate used in the construction and repair of aircraft structures?
Answer:
To join and reinforce intersecting structural members.
Question 8: Which is an identifying characteristic of acrylic plastics?
Answer:
Zinc chloride will have no effect Question 9: A main difference between Lockbolt/huckbolt tension and shear fasteners (other than their application) is in the
Answer:
Number of locking collar grooves Question 10: Proper pre-preg composite lay-up curing is generally accomplished by
Answer:
- and 4 Applying external heat and Applying pressure
Question 11: the dzus turn lock fastener consists of a stud, grommet, and receptacle. The stud length is measured in
Answer:
Hundredths of an inch
Question 12: Under certain conditions, type A rivets are not used because of their
Answer:
low strength characteristic Question 13: What is the minimum edge distance allowed for aluminum alloy single lap sheet splices containing a single row of rivets as compared to a joint with multiple rows, all rivets being equal in diameter?
Answer:
the minimum edge distance for the single row is equal to that for the multiple row.
Question 14: Threaded rivets (Rivnuts) are commonly used to
Answer:
Attach parts or components with screws to sheet metal Question 15: When repairing a small hole on a metal stressed skin, the major consideration in the design of the patch should be
Answer:
the shear strength of the riveted joint Question 16: The coefficient of expansion of most plastic enclosure materials is
Answer:
Greater than both steel and aluminum Question 17: One of the main advantages of Hi-lok type fasteners over earlier generations is that
Answer:
They can be installed with ordinary hand tools
Question 18: (Refer to figure
5) What is the flat layout dimension?
Answer:
6.8 inches
Question 19: The primary alloying agent of 2024-T3 is indicated by the number
Answer:
2
Question 20: (Refer to figure
5) What is the length of flat A?
Answer:
3.7 inches
Question 21: The purpose of a joggle is to
Answer:
Allow clearance for a sheet or an extrusion
Question 22: (Refer to Figure
3) Which is the grip length of the flush rivet?
Answer:
3 Question 23: Which part of the 2017-T36 aluminum alloy designation indicates the primary alloying agent used in its manufacturer?
Answer:
2 Question 24: Aircraft structural units, such as spars, engine supports, etc., which have been built up from sheet metal, are normally
Answer:
Repairable, using approved methods.
Question 25: unless otherwise specified, the radius of a bend is the
Answer:
inside radius of the metal being formed Question 26: If it is necessary to compute a bend allowance problem and bend allowance tables are not available, the neutral axis of the bend can be
Answer:
Found by adding approximately one-half of the stock thickness to the bend radius.
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