That depends on the configuration. It could be anywhere from 10 to 30.
Provided it's not a short tandem, 15 yards with a 'rock tub' dump body and 16 yards with a 'dirt tub' dump body are typical.
17 tons
How many cubic yards will my dump truck hold it is 16x5.5x8
16
20
16 yards is standard 20 yards for a 12 wheeler
The size of dump trucks can vary greatly, with the smallest dump trucks containing about 3 yards of material. Coal mine dump trucks, on the other hand, may contain up to 100 yards.
15.2911
25 - 30.
25-28
Roughly 6 yards - typically half the weight rating of a tandem axle truck - of course this will depend on the type of material you're hauling. Wet saturated materials and coarse rock will be less volumetrically than sand, organic soil etc.
Dump truck specifications vary greatly- too much so for a "one size fits all" type of answer. A better idea of what type of dump truck, how many cubic yards the bed can hold, etc would be needed here.