A) flow problems B) corrosion of parts C) pollution D) all of the above. Ans : (D)
A) erosion B) heat exchange C) water circulation D) all of the above. Ans : (A)
A) 90 degrees B) 120 degrees C) 180 degrees D) - 120 degrees. Ans : (B)
A) 1 % B) 48 % C) 60 % D) 99 %. Ans : (B)
A) it is possible to regulate the flow B) it is possible that the wheel may run full C) water is admitted over part of the circumference D) only part of the available head is converted into velocity before the water enters the wheel. Ans : (B)
A) strainers B) filters C) centrifugal separators D) none of the above. Ans : (C)
A) hot water or steam is available B) hot gases are available C) molten lava is available D) none of the above. Ans : (A)
A) a series of solar cells when not used for power generation B) series parallel arrangement of solar cells C) newly installed solar cell D) none of the above. Ans : (B)
A) 0.1 W B) 0.5 W C) 1 W D) 5 W. Ans : (C)
A) 0.5 V B) 1 V C) 1.1 V D) 5 W. Ans : (A)