671. Which material is used to made a solar cell_______________?
A. aluminum
B. Germanium
C. silicon
D. scandium
672. The fuel used in nuclear reactor is_____________?
A. radium
B. cadmium
C. uranium
D. all of the above
673. Which of the following device is used to measure vacuum?
A. Barometer
B. Hygrometer
C. U-tube manometer
D. Venturi metre
674. The voltage of a single solar cells is about:
A. 0.5 volt
B. 1 volt
C. 1.8 volt
D. 1. 5 volt
675. In hydro power plant, the graph between discharge and time is known as___________?
A. monograph.
B. load graph.
C. discharge graph.
D. hydro graph
676. Which of the following generating station has minimum running cost?
A. Nuclear
B. Hydro
C. Thermal
D. Diesel
677. The ideal load factor should be_____________?
A. unity
B. zero
C. negative.
D. infinity.
678. If the diversity factor of a power station is high then its generation cost is___________?
A. high
B. low
C. remain same
D. depend on the plan type
679. Diesel power plant are generally used as___________?
A. peak load plant
B. base load plant
C. standby plantĀ
D. none of the above
680. A gas turbine basically work on
A. Carnot cycle
B. Rankin cycle
C. Brayton cycle
D. Dual cycle
NOTE
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