TOOLINGU: THREAD STANDARDS AND
INSPECTION 151 CORRECT 100%
Which part of a thread is indicated by the arrow? - ANSWER Pitch point
Which part of a thread is indicated by the arrow? - ANSWER Flank
What two purposes do threads serve? - ANSWER Transmitting motion and fastening.
Which type of thread form is used when the screw or bolt must undergo a great deal of
pressure? - ANSWER Buttress threads
How does an inspector inspect threads using a screw pitch gage? The inspector must: -
ANSWER Find the corresponding pitch and place it on the threads.
What type of inspection device determines actual part dimensions? - ANSWER Variable
Inspection Tools
Which of the following is a thread plug gage used to check? - ANSWER ID threads
Which of the following can be checked by a metal rule? - ANSWER Pitch count
Which type of indicating thread gage measures pitch diameter? - ANSWER Cone and
vee rolls
Which is true of using a mating part as a gage? - ANSWER The mating part is less
reliable with each use.
Which system most often applies to aerospace parts? - ANSWER System 23
What is the lead of a thread? - ANSWER The distance that a screw travels in one
revolution.
Which gage is used by adjusting the anvils to the proper distance and wiggling them
onto the part? - ANSWER Thread Snap Gage
How does an inspector inspect threads using a thread ring gage? The inspector must: -
ANSWER Screw the threads onto the gage.
In the unified thread specification .500 -16UNF - 1A x 5.0000, what does 16 indicate? -
ANSWER Threads per inch
What is the purpose of a standard thread gage? A standard thread gage: - ANSWER
Shows whether a thread passes or fails inspection.
INSPECTION 151 CORRECT 100%
Which part of a thread is indicated by the arrow? - ANSWER Pitch point
Which part of a thread is indicated by the arrow? - ANSWER Flank
What two purposes do threads serve? - ANSWER Transmitting motion and fastening.
Which type of thread form is used when the screw or bolt must undergo a great deal of
pressure? - ANSWER Buttress threads
How does an inspector inspect threads using a screw pitch gage? The inspector must: -
ANSWER Find the corresponding pitch and place it on the threads.
What type of inspection device determines actual part dimensions? - ANSWER Variable
Inspection Tools
Which of the following is a thread plug gage used to check? - ANSWER ID threads
Which of the following can be checked by a metal rule? - ANSWER Pitch count
Which type of indicating thread gage measures pitch diameter? - ANSWER Cone and
vee rolls
Which is true of using a mating part as a gage? - ANSWER The mating part is less
reliable with each use.
Which system most often applies to aerospace parts? - ANSWER System 23
What is the lead of a thread? - ANSWER The distance that a screw travels in one
revolution.
Which gage is used by adjusting the anvils to the proper distance and wiggling them
onto the part? - ANSWER Thread Snap Gage
How does an inspector inspect threads using a thread ring gage? The inspector must: -
ANSWER Screw the threads onto the gage.
In the unified thread specification .500 -16UNF - 1A x 5.0000, what does 16 indicate? -
ANSWER Threads per inch
What is the purpose of a standard thread gage? A standard thread gage: - ANSWER
Shows whether a thread passes or fails inspection.
