Which of these vehicles must always stop before crossing railroad tracks?

a. tank truck marked with hazardous materials placards
b. motor homes or pickup trucks towing a boat trailer
c. any vehicle with 3 or more axles or weighing more than 4,000 pounds


Answer: a. tank truck marked with hazardous materials placards

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If a compressor is energized but shows no activity on the gauges at all, yet an ammeter shows a very low current draw, the problem may be _____.

a. a broken crankshaft b. a damaged valve c. a burnout d. air in the system

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After a panel is cast, water should not be allowed to pond and freeze, because it would cause the concrete surface to _____.

a. discolor b. crack c. cure unevenly d. flake

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Technician A says that coolant from the upper radiator hose should be cooler than coolant from the lower radiator hose. Technician B says that many front wheel drive vehicles use a cooling fan mounted to the engines water pump shaft. Which technician is correct?

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

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What are the two areas into which electrical troubleshooting can be divided?

What will be an ideal response?

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