$1.$ What are motion study principles? How are they classified?

$2.$ Comment on the following: $"$At any given instant, then standard times for many jobs will not be strictly correct." a$.$ Why is this so$?$ b$.$ Does this mean those standards are useless? Explain.

$3.$ What re the trade$-$offs in the following?

a$.$ Using self$-$directed teams instead of a more conventional approach with occasional use of teams.

b$.$ Deciding how often to update standard times due to minor changes in work methods.

c$.$ Choosing between time study and work sampling for work measurement.

$4.$ How are devices such as flow process charts and worker$-$machine charts useful?

$5.$ What are behavioral approaches to job design? How can they help enhance the quality of an employee's work life?