Mr. Spielman requires the engineers to respond within 24 hours.

Our top engineers responded vigorously and personally to those reports, as they did when the plant began operation.

He cut the connection before the chief engineer could respond.

A sullen-looking engineer with a plumber's snake responded in about 46 minutes.

If the engineer does not respond within seconds and bring the train to the required speed, the train will stop itself.

McCoy waved down at Scott and the engineer responded, making his way to the restaurant entrance below.

"Depends on how careful you need to be with the cargo," the chief engineer responded.

The engineers responded at once, and again Chicago slowed.

'You wouldn't understand,' a young male engineer responded loftily when I asked what was wrong with the photocopier.

"You could generate a lot of power," the engineer responded.