The reason for using a reducing extended plenum system is to ____,
A. save metal by using a smaller duct
B. reduce the operating cost of the system
C. provide easier means of fastening the take off fittings
D. maintain a more even pressure throughout the entire length of the trunk duct
Answer: D
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Water that contains a high percentage of minerals is called _____.
a. soft water b. mineralized water c. ionized water d. hard water
The ____ wire feed system has two motors, one located at each end.
A. spool gun type B. push-pull-type C. push-type D. pull-type
Underground feeder and branch-circuit cable is known as Type ____ cable.
A. BC B. UFBC C. UC D. UF
A rear-wheel drive vehicle shudders or vibrates when first accelerating from a stop. The vibration is less noticeable at higher speeds. The most likely cause is ________
A) Brinelling of the U-joint B) Drive shaft imbalance C) Unequal U-joint working angles D) Excessive U-joint working angles