The phrase "alternate duties" is correct and usable in written English.
It can be used when referring to different tasks or responsibilities that can be performed instead of the usual ones.
Example: "Due to the unexpected circumstances, employees may be assigned alternate duties to ensure the workflow continues smoothly."
Alternatives: "substitute tasks" or "replacement responsibilities".
These vessels, the New York and the New Jersey, alternate duty at this site in the ocean, and one or the other is always there.
The existing approach consumes valuable node energy and shortens the network lifetime, however the proposed approach of alternate duty cycles for relay nodes brings elongated network lifetime, as nodes will live longer.
His replacement, John Blick, later alternated duties with Bollinger for much of the rest of the shoot.
Following the pattern of alternating duty at sea with duty ashore, he was assigned to the Fleet Training Division of the Bureau of Navigation from June 1937 to May 1939.
Following the usual pattern of alternating duty afloat and ashore, Parsons was posted to the battleship in June 1930, with the rank of lieutenant.
Continuing the pattern of alternating duty afloat and ashore, he then spent two years as Officer in Charge of the Portland Navy Recruiting Station, before returning to the Atlantic as engineering officer of the light cruiser in June 1925.
If desired, shelf brackets can be alternated; heavy duty, lighter duty, heavy duty, etc. in order to accommodate toolbox placement and to be able to comfortably pull up a chair underneath the workbench.
But Orpik is on a one-year deal, and this could be his last season with the team, so eventually his alternate captain duties will pass to someone else.
Berkeley and Harvard will alternate hosting duties for eight weekly lectures ― double the number offered in the first semester.
When feeding, degus alternate sentinel duties and produce alarm calls to warn conspecifics of danger [reviewed in [ 69]].
