Large diameter electrodes may overheat the metal if ____.
A. they are used with thick or large pieces of metal
B. they are used with aluminum
C. they are used with thin or small pieces of metal
D. they are used with exotic alloys
Answer: C
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Steel reinforcement in the footing is required for most houses and small commercial buildings.
Answer the following statement true (T) or false (F)
An employee must report job-related injuries to the employer _______________________.
A. immediately B. within 24 hours C. if it requires medical attention D. if more than one person is involved
To make effective use of biomass materials, what other energy source is it often mixed with for power
generation? a. Coal b. Wood c. Biofuels d. Liquefied natural gas
Which of the following is not true of permanent-magnet motors?
A. The main field flux is produced by permanent magnets. B. An electromagnet is used for the secondary field or armature flux. C. They has many of the characteristics of a wound rotor induction motor. D. They consist of permanent magnets mounted on a frame with a rotating armature placed between them.