Question 1

Using the assembly-line balancing procedure,which of the following is the required cycle time if the production time in minutes per day is 1440 and the required output per day in units is 2000?
A)0.72
B)1.388
C)250
D)500
E)Cannot be determined from the information above

Accepted Answer

The answer of Using the assembly-line balancing procedure,which of the...

Question 2

Assembling-to-order means moving the customer order decoupling point from finished goods to components.

Accepted Answer

Assembling-to-order is a manufacturing strategy where the final product is assembled based on a specific customer order by pulling components from inventory. This shifts the customer order decoupling point from finished goods to components.

Question 3

Workstation cycle time is the time between successive units coming off the end of the assembly line.

Accepted Answer

This is a correct definition of workstation cycle time.

Question 4

In designing a production layout a flexible line layout might have the shape of a "U".

Accepted Answer

A flexible line layout can take many shapes, but one common shape is the "U" shape, which allows for easier reconfiguration and flexibility in accommodating different product lines.

Question 5

process map shows the physical location of the various processes within a supply chain.

Accepted Answer

A process map is a visual representation of the steps involved in a process, not the physical location of processes within a supply chain.

Question 6

For the purposes of assembly-line balancing,the required workstation cycle time is found by dividing production time per day by the required units of output per day.

Accepted Answer

This is correct. The required workstation cycle time is calculated by dividing the production time per day by the required units of output per day in order to balance the workload across the assembly line.

Question 7

The assembly-line balancing procedure determines the precedence relationships of manufacturing tasks.

Accepted Answer

The assembly-line balancing procedure is primarily focused on distributing tasks among workstations in a way that each has an approximately equal amount of work, not on determining the precedence relationships of manufacturing tasks. Precedence relationships, which dictate the order in which tasks must be performed, are typically established before the balancing process.

Question 8

The first step in balancing an assembly line is to specify the precedence relationships among tasks to be performed on the line.

Accepted Answer

This is correct as specifying the order of tasks is the first step in balancing an assembly line.

Question 9

Little's law states that supply chain processes can be regarded as unrelated and thus treated and analyzed separately.

Accepted Answer

Little's law actually states that there is a relationship between inventory, throughput, and flow time in a supply chain process, and they cannot be treated independently.

Question 10

In balancing an assembly line,workstation cycle time has to be less than the time between successive units coming off the end of the line.

Accepted Answer

In balancing an assembly line, workstation cycle time has to be equal to or less than the time between successive units coming off the end of the line to ensure a smooth and continuous production flow without bottlenecks or idle time.

Question 11

In assembly-line balancing the theoretical minimum number of workstations is found by a ratio of the sum of all task times divided by the cycle time.

Accepted Answer

This is the formula for calculating the minimum number of workstations in assembly-line balancing.

Question 12

If the sum of the task times required to produce a product is 80 minutes and the cycle time for the same product is 15 minutes,the theoretical minimum number of workstations is 8 using the assembly-line balancing procedure.

Accepted Answer

The theoretical minimum number of workstations would be calculated by dividing the sum of task times by the cycle time, which would be 80/15 = 5.33 (rounded up to 6). Therefore, the statement is false.

Question 13

If the sum of the task times required to produce a product is 45 minutes and the cycle time for the same product is 10 minutes.Thus,the theoretical minimum number of workstations is 5 using the assembly-line balancing procedure.

Accepted Answer

The answer of If the sum of the task times...

Question 14

The term "assembly line" refers to progressive assembly linked by some material handling device.

Accepted Answer

This statement accurately describes the definition of an assembly line.

Question 15

Using the assembly-line balancing procedure,which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 7,4,7,8,9,4,3,and 6 minutes,and the cycle time is 8 minutes?
A)3
B)5
C)6
D)8
E)None of these

Accepted Answer

1. Calculate the sum of all task times: 
7 + 4 + 7 + 8 + 9 + 4 + 3 + 6 = 48 minutes

2. Calculate the minimum number of required workstations: 
Ceiling(48/8) = 6

3. Calculate the maximum task time for each workstation:
Station 1: 7 + 8 = 15
Station 2: 4 + 9 = 13
Station 3: 7 + 4 + 3 = 14
Station 4: 6

4. Check if the maximum task times exceed the cycle time:
All maximum task times are less than or equal to the cycle time of 8 minutes.

Therefore, the theoretical minimum number of workstations is 6.

Question 16

Using the assembly-line balancing procedure,which of the following is the required cycle time in minutes per unit if the daily production time is 480 minutes and the required daily output is 50 units?
A)0.104
B)50
C)9.6
D)480
E)Cannot be determined from the information above

Accepted Answer

The cycle time can be calculated using the formula:

Cycle time = Production time available per day / Required daily output

Substituting the given values:

Cycle time = 480 minutes / 50 units
Cycle time = 9.6 minutes per unit

Therefore, the required cycle time is 9.6 minutes per unit. Option C is the correct answer.

Question 17

The efficiency of an assembly-line is found by a ratio of the sum of all task times divided by the cycle time.

Accepted Answer

The efficiency of an assembly-line is found by a ratio of the cycle time divided by the sum of all task times.

Question 18

high-level map or diagram of a supply chain process can be useful to understand how material flows and where inventory is held.

Accepted Answer

A high-level map or diagram of a supply chain process can provide a visual representation of the flow of materials and the location of inventory, making it a useful tool for understanding the overall supply chain process.

Question 19

Little's law can be thought of as a relationship between units and time.

Accepted Answer

Little's law states that the average number of units in a system is equal to the product of the average rate at which units arrive in the system and the average time units spend in the system. Hence, it involves a relationship between units, time, and arrival rate.

Question 20

Using the assembly-line balancing procedure,which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4,6,7,2,6,and 5 minutes,and the cycle time is 10 minutes?
A)3
B)5
C)6
D)8
E)None of these

Accepted Answer