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Practice Problems in Mathematics For Automotive Technicians
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Question 1 of 11
1. Question
1 pointsA valve will expand in length when it is heated. The length of the valve when cold is 4.8750 inches. It expands 0.0015 inch when heated. What is its length when hot?
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Question 2 of 11
2. Question
1 pointsA 165 R14 radial tire costs $44.95, and the Federal Excise Tax (FET) is $2.09. what is the total cost of the tire?
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Question 3 of 11
3. Question
1 pointsA customer at a gasoline station buys 1 quart of oil for $1.55, polish for $2.48, and a polish cloth for $0.79. What amount is paid to the attendant?
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Question 4 of 11
4. Question
1 pointsA Nissan valve stem measures 102.35 mm. Maximum guide clearance is 0.045 mm. What is the largest permissible guide diameter in millimeters?
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Question 5 of 11
5. Question
1 pointsWhat is the total amount of a bill itemized as follows: compressor seal, $8.75; refrigerant, $17.12; clutch brush set, $9.20; labor, $98.50; sales tax, $2.81?
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Question 6 of 11
6. Question
1 pointsA starter ring gear with a 14.675inch inside diameter will expand 0.075 inch in diameter when heated. What is the diameter when heated?
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Question 7 of 11
7. Question
1 pointsA standard piston diameter is 72.967 mm. The largest oversize piston available is 1.55 mm larger than standard. What is the diameter of the oversize piston in millimeters?
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Question 8 of 11
8. Question
1 pointsIf 15 out of 75 piston pins are rejected, what percent is rejected?
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Question 9 of 11
9. Question
1 pointsIf 15 out of 75 piston pins are rejected, what percent is accepted?
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Question 10 of 11
10. Question
1 pointsA repair shop reduces the working hours from 40 to 35 without reducing the weekly rate of pay of the mechanics. What is the percent of decrease in hours?
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Question 11 of 11
11. Question
1 pointsIf 4 out of every 10 car sales are made directly to women, what percent of car sales are made to women?
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