When attempting to remove a seized injector spacer washer, which of the following tools would be recommended?
A. taper reamer
B. heal end of an injector heal bar
C. tapered end of an injector heal bar
D. hammer and punch
Answer: C
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A construction plan specifies 1" CTS x 1 ?2 insulation. Which of the following does this specification describe?
a. 1?2" thick insulation on a 1" inner diameter copper tube b. 1?2" thick insulation on a 1" outer diameter copper tube c. 1" thick insulation on a 1?2" inner diameter copper tube d. 1" thick insulation on a 1?2" outer diameter copper tube
How does an energy-recovery wheel improve system efficiency?
A) By keeping the evaporator clean B) By moving some of the system refrigerant with a turbulator C) By reducing the condenser head pressure D) By transferring heat between the ventilation air and the exhaust air
You need to know how to reconnect a three-phase motor for a change of voltage ________
A) because some three-phase motors need DC voltage instead of AC voltage B) because the motor may need more speed C) because the voltage rating of the motor that you have in stock is rated 480 V AC and the motor that it is replacing is rated for 240 V AC
The direction of the wound rotor induction motor can be reversed by interchanging two of the three rotor terminals.
Answer the following statement true (T) or false (F)