McqMate
| Q. |
The pressure of air for braking in case of heavy duty trucks in usually of the order of |
| A. | Depends upon the road conditions |
| B. | 1 to 2 atm |
| C. | 14 to 17 atm |
| D. | 4 to 7 atm |
| E. | 2 to 3 atm |
| Answer» D. 4 to 7 atm | |
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