A. Pulley
B. Starter
C. Foundation pedal
D. Bearings
A. RC coupling
B. Transformer coupling
C. Direct coupling
D. None of the above
A. positively charged
B. electrically neutral
C. negatively charged
D. positively and negatively charged
A. NAND gate
B. OR gate
C. AND gate
D. None of the above
A. Proper direct current
B. Proper alternating current
C. The base current small
D. Collector current small
A. easy speed control
B. high starting tractive effort
C. equipment capable of with standing large temporary loads
D. all of the above
A. Corrosion problems in the under-ground pipe work
B. Short time power failure interrupts traffic for hours
C. High capital outlay in fixed installations beside route limitation
D. Interference with communication lines
C. All of the above