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29.

In a Francis turbine, the runner blades are radial at the inlet and the discharge
leaves the runner radially at the exit. For this turbine

A) The relative velocity is radial at the outlet

8) The absolute velocity is radial at the outlet

C) The guide vane angle is 90°

D) The velocity of flow is constant

30. A centrifugal pump has its impeller of 50 cm diameter at inlet, and it rotates at 1200 rpm.
The tangential velocity of the impeller at the inlet is
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31. A test used for determining the biological quality of drinking water is
A) Acidity test B) Coliform test C) lodine test D) Vidal test
32. Consider the following statements.
1. Chlorination of water kills the viruses of polio, viral hepatitis and jaundice.
2. Treatment of water with ozone removes the chlorine from water.
Which of these statements is/are correct ?
A) 1 only B) 2 only
0) 800 1 8೧62 D) Neither 1 nor 2
33. If Ais to the South of B and C is to the East of B. In what direction is A with respect
107
A) North-East B) North-West C) South-East D) South-West
34. How many even numbers are there in the following sequence of numbers which
are immediately followed by an odd number as well as immediately preceded by
an even number ?
8, 6, 7, 6, 8, 9, 3, 2, 7, 5, 3, 4, 2, 2, 3, 5, 5, 2, 2, 8, 1,1,9
A) One B) Three C) Five D) None of these
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A) 3 B) 3/2 01 D) 2/3
36. Find the sum to n terms of the series 6 + 66 + 666 +. . .
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©) 2(10+ 1-9-10) D) None of these
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