Technician A says the only time an ammeter is used for testing is when the power for the circuit is disconnected. Technician B says when testing a circuit, the ammeter is always connected in series with the circuit. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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Portable on-stage switchboards must be equipped with a pilot light and must be supplied by an individual branch circuit rated at _____.
a. 15A or less b. 20A or less c. 30A or less d. 50A or less
Plants that are at the limits of their hardiness can be killed by extended periods of severely cold weather. How should those species be regarded when the plant selections for a proposed landscape are being made?
a. marginally hardy c. extremely hardy b. marginally weak d. moderately weak
Capillarity in soils:
A) involves both adhesion and cohesion. B) does not account for unsaturated water movement in soils. C) is enhanced by the symmetrical nature of the water molecule. D) is independent of the matric potential in soils. E) is not involved in the process of water uptake from soils.
The taper tap is generally used for starting a thread.
Answer the following statement true (T) or false (F)