Which situation most often results in hearing loss in a shop environment?

A. An individual incident.
B. Improperly maintained air tools.
C. Years of exposure to repetitive and excessive noise levels.
D. Shop noise exceeding 160 decibels.


Answer: C

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Two technicians are discussing the coolant flow through a heater core. Technician A says that heated coolant enters the heater inlet hose close to the engine thermostat. Technician B says the coolant from the heater core returns to the water pump outlet. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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Use the accompanying figure to compute angle C to the nearest hundredth of a degree. Angle A is 32o and angle B is 25o.

A. 19.59o B. 22.09o C. 25.77o D. 29.52o

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What is the purpose of a bit for a horse?

What will be an ideal response?

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?What type of groove is usually used for horizontal butt welds on ΒΌ in (6 mm) thick plates?

A. ?fillet groove B. ?V-groove C. ?U-groove, slower D. ?bevel groove

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