Professor Coypu stood frozen at the controls with his hand locked on the closed switch.

When you turn on a fluorescent tube, the starter is a closed switch.

This mode corresponds to a logical "on", or a closed switch.

Coupling a car ahead of the engine or driving into a closed switch will derail the train and end the game.

So now that resistor that's still on the upper half of this little circuit, its lower lead is connected through the closed switch to ground.

Certain combinations of closed switches (jackpot winners) will configure the machine's electrical circuit to operate the payout mechanism.

The stop button itself is wired as a normally closed switch.

A RBD may be drawn using switches in place of blocks, where a closed switch represents a working component and an open switch represents a failed component.

The two men operating three Conrail locomotives that moved past a closed switch and were struck by a speeding Amtrak train used marijuana before the fatal accident, Federal railroad officials said today.

In the Jan. 4 accident, three linked Conrail locomotives ran past a stop signal and through a closed switch into the path of an oncoming passenger train.