Technician a Says That Some Multivalve Heads Use Control Valves

question 25

Multiple Choice

Technician A says that some multivalve heads use control valves that cause only one intake valve to open at low rpm and another to open at higher rpm. Technician B says that other multivalve heads use two intake manifold runners per cylinder. Who is correct?

• A) A only
• B) B only
• C) Both A and B
• D) Neither A nor B

---

Definitions:

REM Behavior Disorder

A sleep disorder in which individuals physically act out vivid, often unpleasant dreams with vocal sounds and sudden, violent arm and leg movements during REM sleep.

Narcolepsy

A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.

Sleep Apnea

A disorder characterized by pauses in breathing or periods of shallow breathing during sleep.

Somnambulism

Is the medical term for sleepwalking, which involves walking or performing other complex behaviors while in a state of sleep.