Job refers to giving an employee more tasks to do at one time; job refers to giving an employee the same number of tasks to perform at any one time but different tasks from time to time; job refers to giving employees more responsibility for performing their jobs

enlargement, rotation, enrichment

Explanation:

Job enlargement raises the scope of a job position by addition of extra tasks and responsibilities within the same level and department. Such an activity makes a job position more challenging.

Job rotation refers to shifting of employees from one task to another in the same department. Job rotation is aimed at breaking the monotony associated w.r,t performing the same task on routine basis.

Job enrichment is aimed at providing better satisfaction to an employee related to his work. It usually includes assignment of those responsibilities which are reserved for superior levels.