The marking for this assignment is 1 marks for correctly identifying steer, single, tandem, tridem and .5 marks for adding together axle groups and GVW
For the following question, calculate the maximum allowable weights.
A truck and trailer with the following tire information:
Steering Tires: Tire Size: P235/75R15
Single Rated Capacity: 2,400 kg
Dual Rated Capacity: 2,300 kg
Drive Axle Tires (dual): Tire Size: P235/75R15
Single Rated Capacity: 2,400 kg
Dual Rated Capacity: 2,200 kg
Trailer Tires (single): Tire Size: P215/75R15
Single Rated Capacity: 2,400 kg
Dual Rated Capacity: 2,300 kg
2350×2=4700 _________ 2200×4=8800_________ 2150×2=4300_________
GVW: 17800_________
For questions 2-7, assume the interaxle spacing is correct unless otherwise indicated AND all carrying axles have 279mm (11”) dual tires.
A truck tractor and semi trailer with 254mm steering tires.
3.7m
3.7m
5100_______ 17000____ 24000________
41000______
GVW: 46100_________
4/4
A truck and trailer with 381mm steering tires.
7300______ 17000____ 9100______ 17000_____
GVW: _50400________
_26100____
A truck tractor and semi trailer with 279mm steering tires
2.9m
2.9m
4.7m
4.7m
_5600________ 17000____ 21000_____
34000______
GVW: 39600______
A-Train with 254mm steering tires on a 75% road ban hauling plywood.
__12750___ ___6825___ __12750___ _12750__ _5100_
___19575___ ___19575_ __25500____
GVW: _50175________
A truck with 465mm steering tires on a 90% road ban.
13600 _________ 15300________
GVW: 28900_________
Classification: Protected A
Classification: Protected A
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