USPS EXAM UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

USPS EXAM 943 944 945 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. HC
Answer:
hydrocarbons

Question:
2. Hc is caused by
Answer:
Misfire

Question:
3. Nox
Answer:
High exhaust temps caused by high combustion temp

Question:
4. Egr open
Answer:
Lean

Question:
5. Egr closed
Answer:
Rich

Question:
6. Rich
Answer:
Black smoke

Question:
7. Lean
Answer:
White smoke

Question:
8. Secondary spring
Answer:
Goes on first

Question:
9. lower ball joint

, Answer:
Load bearing

Question:
10. Vacuum range
Answer:
14-22 "

Question:
11. Cam to crank
Answer:
Crank turns 2 times per 1 cam rotation

Question:
12. What is used for piston pin diameter
Answer:
Micrometer

Question:
13. Amp
Answer:
Electrical current

Question:
14. Ohm
Answer:
unit of resistance

Question:
15. Volt
Answer:
Unit of electric pressure

Question:
16. What tool measures amps
Answer:
Ammeter

Question:
17. What tool measures ohms
Answer:
Ohmmeter

Question:
18. What tool measures Volts