1.

Using LPT priority would result in what sequence for Jobs A, B, C, and D if their process times are 4, 6, 5, 2 respectively?

Group of answer choices

none of these

ABCD

DACB

DABC

DCBA

2.

Which of the following is not a concern of suppliers as they prepare to enter into JIT partnerships?

Group of answer choices

Suppliers feel that their processes are suited for larger lot sizes than the customer wants.

Suppliers are concerned that customers will present frequent engineering changes with inadequate lead time to deal with them.

Suppliers are concerned that frequent delivery of small quantities is economically prohibitive.

all of these represent JIT supplier concerns.

Suppliers feel that they would be less at risk if they contracted with more than one customer.

3.

The list of 5S's, although it looks like a housekeeping directive, supports lean production by

Group of answer choices

identifying non-value items and removing them, in the "sort/segregate" item

building good safety practices, in the "shine/sweep" item

reducing inventory, in the "standardize" item

increasing variability through standardized procedures, in the "standardize" item

eliminating wasted motion through ergonomic studies, in the "support" item

4.

For a machine to be a good candidate for preventive maintenance

Group of answer choices

the consequences of failure must exceed the cost of preventive maintenance and the MTBF distribution must have a relatively low standard deviation

the consequences of failure must be relatively unknown and, therefore, risky

the consequences of failure must exceed the cost of preventive maintenance and the MTBF must be relatively high

the consequences of failure must exceed the cost of preventive maintenance and the MTBF distribution must have a large standard deviation

the consequences of failure must exceed the cost of preventive maintenance and the MTBF must be relatively low

5.

As the number of components in a system connected in a series decreases, all other things being equal, the reliability of the system usually

Group of answer choices

increases, then decreases

decreases, then increases

decreases

increases

stays the same