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GENERAL Learning Environment Category B (B, B1)

Question 131 of 1208

What are the criteria for assessing the effectiveness of the brakes?

A the braking distance;

B the shape of the pedal;

C the size of the braking mark imprinted on the carriageway.

See explanation

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Explanation

The criterion for assessing the effectiveness of the brakes is determined by the braking distance. The smaller the braking distance, the more effective the brakes are. And the braking distance depends the most on the speed at which the motor vehicle is moving.

The correct answer is: A

Recommendations:

Mechanics course (knowledge of the main elements) --> Mechanics course

Preventive driving course --> Preventive driving course

Reference articles

Speed (km/h)	10	20	30	40	50	60	70	80	90	100	110	120	130
Speed (m/s)	2.78	5.56	8.33	11.11	13.89	16.67	19.44	22.22	25.0	27.78	30.56	33.33	36.11
Distance travelled during the reaction time (m)	2.78	5.56	8.33	11.11	13.89	16.67	19.44	22.22	25.0	27.78	30.56	33.33	36.11
Distance travelled during the (mechanical) braking time (m) on dry surface	0.55	2.2	4.96	8.82	13.78	19.84	27.01	35.27	44.64	55.11	66.69	79.37	93.14
Distance travelled during the (mechanical) braking time (m) on wet surface	0.77	3.09	6.94	12.35	19.29	27.78	37.81	49.38	62.5	77.16	93.36	111.11	130.4
Total stopping distance (m) (min - max)	3.33 - 3.55	7.76 - 8.65	13.29 - 15.27	19.93 - 23.46	27.67 - 33.18	36.51 - 44.45	46.45 - 57.25	57.49 - 71.6	69.64 - 87.5	82.89 - 104.94	97.25 - 123.92	112.7 - 144.44	129.25 - 166.51

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