AST55 Quiz Verified Exam Questions and Answers Latest update
2026/2027
Question:
1. The GM EV1 was what type of vehicle?
Answer:
Totally electric powered
Question:
2. Which type of hybrid uses 36 to 42 volts?
Answer:
Mild hybrid
Question:
3. Which type of hybrid is capable of propelling the vehi- Strong(full) hybrid cle using just electric
motor?
Answer:
Question:
4. About how fast does a motor-generator crank the internal combustion engine?
Answer:
About 1000 RPM
Question:
5. Which type of hybrid electric design cost the least?
Answer:
BAS(belt alternator starter) design
Question:
6. Which type of hybrid electric vehicle has idle stop operation?
Answer:
Strong, mild, and medium hybrids
,Question:
7. Tech A says that most hybrids require that they plugged into an electrical outlet at night to provide
the electrical power to help propel the vehicle. Tech B says that the internal combustion engine in an
HEV will often stop running when the vehicle is stopped. Which tech is correct?
Answer:
Tech B only
Question:
8. Tech A says that most hybrids use the series hybrid design. Tech B says that most hybrids have 42
volt batteries. Which tech is correct?
Answer:
Neither Tech A or B
Question:
9. Electric motors are better than an internal combustion All of the above engine to propel a vehicle
because...
Answer:
Question:
10. All of the following are characteristic of a hybrid electric vehicle (HEV), except...
Answer:
Lower fuel economy
Question:
11.
Which is a characteristic of many hybrid electric vehicle (HEV) gasoline engine
Answer:
All of these
Question:
12. A hybrid electric vehicle (HEV) gasoline engine usually uses what viscosity of engine oil?
Answer:
SAE 0W-20
Question:
13. Brake Horsepower is calculated using which of the following
Answer:
Torque times RPM divided by 5252
, Question:
14. Torque is expressed in units of
Answer:
Pound-feet
Question:
15. Horsepower can also be expressed in units of
Answer:
Foot-pounds per minute
Question:
16. Hybrid electric vehicle gasoline engines often use what All of these systems to achieve maximum
fuel economy?
Answer:
Question:
17. The Atkinson cycle engine design
Answer:
Uses the same four stroke cycle but delays closing of intake valve
Question:
18. A wide-band oxygen sensor is used to
Answer:
All of these
Question:
19. The use of an offset crankshaft is used to
Answer:
Improve the fuel economy by reducing internal engine friction
Question:
20. One key way to improve fuel economy is to reduce pumping losses. What methods is used in many
hybrids to reduce pumping losses?
Answer:
All of these
2026/2027
Question:
1. The GM EV1 was what type of vehicle?
Answer:
Totally electric powered
Question:
2. Which type of hybrid uses 36 to 42 volts?
Answer:
Mild hybrid
Question:
3. Which type of hybrid is capable of propelling the vehi- Strong(full) hybrid cle using just electric
motor?
Answer:
Question:
4. About how fast does a motor-generator crank the internal combustion engine?
Answer:
About 1000 RPM
Question:
5. Which type of hybrid electric design cost the least?
Answer:
BAS(belt alternator starter) design
Question:
6. Which type of hybrid electric vehicle has idle stop operation?
Answer:
Strong, mild, and medium hybrids
,Question:
7. Tech A says that most hybrids require that they plugged into an electrical outlet at night to provide
the electrical power to help propel the vehicle. Tech B says that the internal combustion engine in an
HEV will often stop running when the vehicle is stopped. Which tech is correct?
Answer:
Tech B only
Question:
8. Tech A says that most hybrids use the series hybrid design. Tech B says that most hybrids have 42
volt batteries. Which tech is correct?
Answer:
Neither Tech A or B
Question:
9. Electric motors are better than an internal combustion All of the above engine to propel a vehicle
because...
Answer:
Question:
10. All of the following are characteristic of a hybrid electric vehicle (HEV), except...
Answer:
Lower fuel economy
Question:
11.
Which is a characteristic of many hybrid electric vehicle (HEV) gasoline engine
Answer:
All of these
Question:
12. A hybrid electric vehicle (HEV) gasoline engine usually uses what viscosity of engine oil?
Answer:
SAE 0W-20
Question:
13. Brake Horsepower is calculated using which of the following
Answer:
Torque times RPM divided by 5252
, Question:
14. Torque is expressed in units of
Answer:
Pound-feet
Question:
15. Horsepower can also be expressed in units of
Answer:
Foot-pounds per minute
Question:
16. Hybrid electric vehicle gasoline engines often use what All of these systems to achieve maximum
fuel economy?
Answer:
Question:
17. The Atkinson cycle engine design
Answer:
Uses the same four stroke cycle but delays closing of intake valve
Question:
18. A wide-band oxygen sensor is used to
Answer:
All of these
Question:
19. The use of an offset crankshaft is used to
Answer:
Improve the fuel economy by reducing internal engine friction
Question:
20. One key way to improve fuel economy is to reduce pumping losses. What methods is used in many
hybrids to reduce pumping losses?
Answer:
All of these
