THREAD CUTTING 2 - Practice Mode
1) Which type of thread have higher mechanical advantage?
Correct Answer: Square thread
Explanation:
Sine Function:
sin(θ) = Opposite / Hypotenuse
Cosine Function:
cos(θ) = Adjacent / Hypotenuse
Tangent Function:
tan(θ) = Opposite / Adjacent
2) What is the term the distance from a point on thread to the corresponding point on next thread?
Correct Answer: Pitch
Explanation:
Sine Function:
sin(θ) = Opposite / Hypotenuse
Cosine Function:
cos(θ) = Adjacent / Hypotenuse
Tangent Function:
tan(θ) = Opposite / Adjacent
3) Which method of multi-start thread cutting is depends upon the graduations marked on the dial and the number of teeth in worm wheel?
Correct Answer: Thread chasing dial
method
Explanation:
Sine Function:
sin(θ) = Opposite / Hypotenuse
Cosine Function:
cos(θ) = Adjacent / Hypotenuse
Tangent Function:
tan(θ) = Opposite / Adjacent
4) Which type of trapezoidal thread is used in places there motion is to be transmitted between shafts at right angle?
Correct Answer: Worm thread
Explanation:
Sine Function:
sin(θ) = Opposite / Hypotenuse =4/5, means that in the right-angled triangle, the opposite side is 4 and the hypotenuse is 5. the adjacent side must therefore be 3. (Pythagorean triple 3,4,5)
Tangent Function:
tan(θ) = Opposite / Adjacent = 4/3
5) What is the term of thread the advancement of mating part in one complete rotation?
Correct Answer: Lead
Explanation:
Sin θ = Opposite / Hypotenuse