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VENTURI TUBE ,FLOW NOZZLE, DALL TUBE

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Which device is used when there is need for low head loss?

a)

venturi tube

b)

dall tube

c)

orifice plate

d)

pitot tube

2.

Differential pressure produced by Dall tube is ...................... venturi tube

a)

double than

b)

half of

c)

same as

d)

thrice than

3.

how flow nozzle is better than orifice plate?

a)

Less maintenance requirement

b)

Less pressure and speed can be measured

c)

Lesser cost of construction

d)

Less permanent pressure loss

4.

What Reynold number fluids flow could be measured using flow nozzle ?

a)

below 50000

b)

above 50000

c)

below 5000

d)

above 5000

5.

Suspended solids can be metered through what meters?

a)

Orifice plate

b)

venturi tube

c)

pitot tube

d)

flow nozzle

6.

What is the base principle from which the formula to find velocity of fluid flowing through venturi tube is derived?

a)

Archimedes Principle

b)

Bernoulli's Principle

c)

Pascal's Principle

d)

Piezoelectric Principle

7.

Materials used to make venturi tube

a)

steel

b)

platinum

c)

gold

d)

copper

8.

The difference between upstream pressure and the recovery downstream pressure is (a)  

9.

Find out the odd section of venturi tube

a)

Diverging recovery cone

b)

Cylindrical throat

c)

Straight inlet section

d)

Converging rectangular section

10.

In what significant requirements venturi tubes are used to measured flow?

a)

Permanent pressure drop

b)

Increase in speed of flow

c)

Permanent pressure loss

d)

Decrease in speed of flow