technician a states that it is not required for the technician to take the customer on the test drive when…

technician a states that it is not required for the technician to take the customer on the test drive when diagnosing drum brake problems. technician b states that during the test drive, one should find a safe place to operate the brakes at a variety of speeds with a variety of brake pedal pressures. who is correct?\na. technician a\nb. technician b\nc. both technician a and technician b\nd. neither technician a nor technician b
Answer
Brief Explanations:
To diagnose drum brake problems, a test drive with the customer (as per Technician A's view) is not required? No, actually, a test drive (with safe conditions, varying speeds and brake pedal pressures as Technician B says) is necessary. Wait, no—Technician B's statement about finding a safe place, varying speeds and brake pedal pressures during test drive for drum brake diagnosis is correct. Technician A is wrong because taking the customer on test drive (or doing a test drive, maybe the customer's presence isn't mandatory but test drive is) – actually, for diagnosing drum brakes, a test drive is needed to check at different speeds and pressures. So Technician B is correct. Wait, let's re-express: Technician A says it's not required to take customer on test drive (maybe the test drive itself is needed, regardless of customer? But the key is: when diagnosing drum brake problems, a test drive (with varying speeds, brake pressures, in a safe place) is necessary. So Technician B is correct, Technician A is wrong (since test drive is required, so Technician A saying "not required" is wrong). So the correct answer is b. Technician B.
Answer:
b. Technician B