Question

The Kiwi-99 is assembled by QGI with parts supplied by different vendors. Each Kiwi-99 has a lead time of 3 weeks and the Bill of Material consists of the following 3 assemblies:

1) Gimbal Set: 1 per gyroscope lead time is 2 weeks

2) Rotor Set: 1 per gyroscope lead time is 1 week

3) Base: 1 per gyroscope lead time is 3 weeks

• Each Gimble Set comes from a manufacturer in China and consists of 3 separate Gimbals: one inner, one center, and one outer. They each have a lead time of 5 weeks.
• Each Rotor Set comes from a supplier in Japan and consists of one rotor and one matching spindle. They each have a lead time of 4 weeks.

Consider the four product trees shown below.

Kiwi 99 Kiwi 99 Gimbal Set Base Center Outer Rotor Spindle nnerC Gimbal Gimbal Base Gimbal Inner Gimbal Center Gimbal Outer Gimbal Product Tree A Rotor Spindle Product Tree D Kiwi 99 Kiwi 99 Gimbal Set Gimbal Set Rotor Spindle Base Base Rotor Set Inner Gimbal Outer Gimbal Outer Gimbal Spindle Rotor Gimbal Gimbal Gimbal Product Tree C Product Tree B

Which of the four product trees is correct for the Kiwi-99 gyroscope?

Select the best answer

1) Product Tree A

2) Product Tree B

3) Product Tree C

4) Product Tree D

5) None of the above

Answer 1

Answer : Correct Option B : Product Tree B

Product Tree B is correct because it meets al the requirements mentioned inthe question.

• First Requirement - It has three assemblies at BoM level 1, B structure has three assemblies Glibel set, Rotor set and Base. None of the other structure has three assmeblies at bom level 1, hence B strcuture is correct.
• Second Requirement - Gimbals set has three parts as : one inner, one center, and one outer. Thsi is available in B structure. This is also available in other structure like C & D also, but they do not meet level structure.
• Thrid Requirement - It meets rotor set codition also as one rotor set needs one rotor and one matching spindle. Thisis available in B structure and D structure, but D structure does not meet level 1 requirements.