1. A hybrid electric vehicle (HEV) combines:
(A) Two internal combustion engines
(B) An internal combustion engine (ICE) and an electric motor
(C) Two electric motors only
(D) A motor and a flywheel
2. In a series hybrid, the mechanical power from the engine is:
(A) Directly transmitted to the wheels
(B) Converted into electrical energy to drive the motor
(C) Stored in a flywheel
(D) Lost as heat
3. In a parallel hybrid, both the engine and the motor:
(A) Work independently without interaction
(B) Can drive the wheels directly
(C) Charge the battery only
(D) Operate alternately
4. The plug-in hybrid (PHEV) differs from a conventional hybrid because it:
(A) Uses only an internal combustion engine
(B) Can be recharged from an external power source
(C) Has no electric motor
(D) Cannot operate in electric-only mode
5. The main energy source in a series hybrid is the:
(A) Battery
(B) Electric generator driven by the ICE
(C) Fuel tank
(D) Flywheel
6. The Toyota Prius is an example of which hybrid configuration?
(A) Series
(B) Parallel
(C) Series-parallel (power-split)
(D) Plug-in only
7. In a parallel hybrid, fuel efficiency improves because:
(A) The motor and engine share the load
(B) Only the motor drives the car
(C) The engine runs at high speed continuously
(D) Power is wasted during acceleration
8. In a series hybrid, the vehicle wheels are powered by:
(A) The engine directly
(B) The electric motor only
(C) Both engine and motor
(D) Alternator
9. A plug-in hybrid has a larger:
(A) Fuel tank
(B) Battery pack
(C) Engine displacement
(D) Transmission
10. The main advantage of a series hybrid is:
(A) Simpler mechanical design and better engine efficiency
(B) Complex transmission
(C) Higher engine noise
(D) Lower fuel economy
11. The main disadvantage of a series hybrid is:
(A) Inefficient power conversion at high speeds
(B) Poor battery life
(C) Difficult control
(D) High noise
12. In a parallel hybrid, energy transfer losses are:
(A) Higher than series hybrids
(B) Lower due to direct mechanical coupling
(C) Equal to series hybrids
(D) Negligible
13. The Chevrolet Volt is an example of a:
(A) Series hybrid
(B) Parallel hybrid
(C) Plug-in hybrid
(D) Hydraulic hybrid
14. A series-parallel hybrid combines:
(A) Two engines
(B) Features of both series and parallel hybrids
(C) Electric and hydraulic motors
(D) Solar and thermal sources
15. In a series hybrid, regenerative braking energy is stored in the:
(A) Engine
(B) Battery
(C) Generator
(D) Transmission
16. The power-split device in a series-parallel hybrid is typically a:
(A) Gearbox
(B) Planetary gear set
(C) Differential clutch
(D) Alternator
17. The control strategy in a hybrid vehicle aims to:
(A) Minimize emissions and fuel consumption
(B) Maximize engine torque
(C) Eliminate regenerative braking
(D) Disable battery use
18. The electric-only range of a plug-in hybrid typically varies between:
(A) 1–5 km
(B) 20–80 km
(C) 100–200 km
(D) 500 km
19. The battery in a plug-in hybrid is primarily charged by:
(A) Regenerative braking and external power
(B) Engine alternator only
(C) Solar panels
(D) Flywheel energy recovery
20. In parallel hybrids, during cruising:
(A) Both motor and engine may work together
(B) Only the motor works
(C) Only the engine works
(D) No propulsion is required
21. A mild hybrid typically uses:
(A) A small electric motor to assist the ICE
(B) Only electric power
(C) Two large motors
(D) Fuel cell systems
22. A full hybrid vehicle can:
(A) Operate using the engine or motor independently
(B) Operate only with the engine
(C) Not perform regenerative braking
(D) Never use electric-only drive
23. The Honda Insight is primarily a:
(A) Series hybrid
(B) Parallel hybrid
(C) Plug-in hybrid
(D) Series-parallel hybrid
24. The key challenge in hybrid vehicle design is:
(A) Power flow control and system integration
(B) Headlight design
(C) Engine color matching
(D) Wheel alignment
25. The fuel economy of hybrids is highest when:
(A) The vehicle operates at low to medium speeds
(B) Constant high-speed driving
(C) Stationary idling
(D) Rapid acceleration
26. In series hybrids, the engine is operated:
(A) Only when needed to charge the battery
(B) Continuously at variable speeds
(C) At idle only
(D) During acceleration
27. The main advantage of plug-in hybrids is:
(A) Reduced fuel consumption and emissions
(B) No need for batteries
(C) Simple design
(D) Lower initial cost
28. The main limitation of plug-in hybrids is:
(A) High battery cost and charging time
(B) Lack of an ICE
(C) No regenerative braking
(D) Poor performance
29. The series hybrid architecture is most suitable for:
(A) Urban driving with frequent stops
(B) Highway driving
(C) Off-road vehicles
(D) High-speed racing
30. The parallel hybrid architecture is more efficient for:
(A) Highway and high-speed driving
(B) Stop-and-go traffic
(C) Stationary operation
(D) Idle conditions only