A central station air handling unit
A) Is used for large systems and is assembled on site using separate components
B) Consists of a fan and coil and usually handles a single room or zone
C) Is used instead of a fan and fan motor
D) Combines the functions of the evaporator blower and the condenser blower
A
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La tubería de hierro dúctil no se puede cortar con un(a):
a. cortadora de tubería de evacuación. b. sierra abrasiva de cierre. c. sierra para metales. d. soplete con arco de plasma.
The primary (low-voltage) ignition system must be working correctly before any spark occurs from an ignition coil. Which of these component is NOT in the primary ignition circuit?
A) Pickup coil (pulse generator) B) Ignition module (igniter) C) Ignition switch D) Spark plug wiring
If a circuit breaker that protects an air conditioning system continually trips at a residence you should ________
A) put in a larger one B) put a jumper wire around the circuit breaker so it is no longer in the circuit C) troubleshoot the system to determine what is causing the system to draw extra current
In a period of a month, one driver uses 56 gallons of gasoline while another driver uses 22 gallons. How many more gallons of gasoline does the first driver use than the second?
A. 30 B. 31 C. 32 D. 34