The Continue option will begin an arc:

a. At the end point of the last arc drawn
b. Perpendi cular to the last arc drawn
c. Tangent to the last arc drawn
d. At the start point of the last arc drawn


c. Tangent to the last arc drawn

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What is the maximum safe fill weight of a recovery cylinder with a tare weight of 30 lb, a water capacity of 40 lb, holding a refrigerant with a specific gravity of 1.2?

A) (30 lb + 40 lb) × 1.2 = 84 lb (rounded) B) (30 lb + 40 lb) × 0.8 = 56 lb (rounded) C) 30 lb + 40 lb = 70 lb (rounded) D) 30 lb + (40 lb × 0.8 × 1.2 ) = 68 lb (rounded)

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How does one detect a leak in a low-pressure system?

A) By full system shut-downs B) By an extended purging operation C) By high pressure increases D) By slower recovery rates

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Which OSI model layer is covered by the LoRa specification?

A. Layer 1 B. Layer 2 C. Layer 3 D. Layer 7

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What scale on a DVOM should be used to test a zirconium dioxide O2 sensor's signal?

A. An AC voltage scale B. A DC voltage scale C. A resistance scale D. A diode test scale

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