The discharge through a reaction turbine __________ with the increase in unit speed.

The discharge through a reaction turbine with increase in unit speed

A

Increases

B

Decreases

C

Remain unaffected

D

First increases and then decreases

The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which

A

Delivers unit discharge under unit head

B

Delivers unit discharge under unit speed

C

Develops unit power under unit head

D

Develops unit power under unit speed

The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)

A

$${\left( {\frac{{\text{q}}}{{\text{g}}}} \right)^{\frac{1}{2}}}$$

B

$${\left( {\frac{{{{\text{q}}^2}}}{{\text{g}}}} \right)^{\frac{1}{3}}}$$

C

$${\left( {\frac{{{{\text{q}}^3}}}{{\text{g}}}} \right)^{\frac{1}{4}}}$$

D

$${\left( {\frac{{{{\text{q}}^4}}}{{\text{g}}}} \right)^{\frac{1}{5}}}$$

The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

A

Normal speed

B

Unit speed

C

Specific speed

D

None of these

The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

A

Plus

B

Minus

C

Divide

D

None of these

Parson's reaction turbine is a __________ reaction turbine.

A

40 percent

B

50 percent

C

60 percent

D

70 percent

The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

A

Equal to

B

One-half

C

Three fourth

D

Double

The unit discharge through the turbine is

A

$$\frac{{\text{Q}}}{{\sqrt {\text{H}} }}$$

B

$$\frac{{\text{Q}}}{{\text{H}}}$$

C

$$\frac{{\text{Q}}}{{{{\text{H}}^{\frac{3}{2}}}}}$$

D

$$\frac{{\text{Q}}}{{{{\text{H}}^2}}}$$

The price per unit of a product increases by 25% . The actual Taka increase in the unit price is Tk.1.25. What was the unit price in Taka before the price increase?

A

5

B

7.5

C

6.25

D

8.75

The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka, before the price increase?

A

5.00

B

6.25

C

7.50

D

8.75

The discharge through a reaction turbine __________ with the increase in unit speed.

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