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（1） and （2） （1）, （2） and （3） （1） and （3） （2） and （3）
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（1） only （1） and （2） （2） and （3） （1）, （2） and （3）
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A cut-off lever A swivel block A cross-head A driving gear
turning gear steering gear spur gear chain gear
If one screw is stopped, the ship will turn toward the side of the stopped screw The principal force which turns the ship is set up by the wake against the forward side ofthe rudder Turning response by use of the rudder only is greater than on a single-screw vessel With the rudder amidships, the ship will steer a fairly steady course"
screwing into being screw on to screw on screwed into
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spur geared screw geared worm geared belt driven
a reciprocating pump a vane pump a centrifugal pump a triple screw pump
The three moving vanes and the three fixed vanes form three pressure chambers The three moving vanes and the three fixed vanes form six pressure chambers The three moving vanes and the three fixed vanes form nine pressure chambers The three moving vanes and the three fixed vanes form twelve pressure chambers
variable stroke pumps multistage pumps positive displacement pumps triple-ported pumps
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