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003 Scientific Principles Quiz

Authored by George Harding

Professional Development

Professional Development

Used 16+ times

003 Scientific Principles Quiz
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following is the freezing point of water?

0°C.

32°C.

75°C.

100°C.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A change of state in water takes place at which of the following temperatures?

25°C.

50°C.

75°C.

100°C.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Water is at its maximum density at which one of the following temperatures?

0°C.

4°C.

25°C.

52°C.

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

What is the intensity of pressure acting on the inlet to the 15 mm tap shown in the following diagram?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following pipes of equal length will create the greatest resistance to the flow of water?

A 22mm pipe which reduces down to 15mm for a quarter of its length.

A 15mm pipe which contains 4 machine bends.

A 15mm pipe which contains 2 machine bends and 2 elbows.

A 15mm pipe which contains 4 elbows.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which one of the following will cause siphonage to occur from the upper container to the lower container in the following diagram?

Suction pressure at point B.

Positive pressure at point B.

Suction pressure at point A.

Atmospheric pressure at points A and B.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following types of device is used to take temperature measurements of pipe surfaces when commissioning a central heating system?

Cylinder thermostat.

Room thermostat.

Differential digital thermometer.

Multi-meter.

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