8 questions Advanced

ECADEMY test

29 - Introduction to temperature control

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Question 3 of 8 Advanced

3 Which of the following isn’t one of the main benefits of the CM pump range?

Question 4 of 8 Advanced

4 Which component is often ‘the weakest link’ in centrifugal pumps?

Question 6 of 8 Advanced

6 What is the expected payback time of an investment in system optimisation?

Question 8 of 8 Advanced

8 How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?

Question 8 of 8 Advanced

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Correct
Q: Which load profile will benefit the most from a demand driven control system?
A: Low flow rate with relatively few peak periods during the day.
Correct
Q: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
A: Intelligent pumps equipped with temperature sensors that measure the outlet temperature and signal the pump to regulate its flow accordingly – without the use of valves.
Correct
Q: Which of the following isn’t one of the main benefits of the CM pump range?
A: External control
Correct
Q: Which component is often ‘the weakest link’ in centrifugal pumps?
A: Shaft seal
Correct
Q: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
A: The viscosity and density of propylene glycol is higher than tap water.
Correct
Q: What is the expected payback time of an investment in system optimisation?
A: 1-5 years
Correct
Q: Which temperature control systems hold the greatest potential for optimisation?
A: Three way valve Regulated temperature control systems that adapts operation according to the load.
Correct
Q: How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?
A: Equip the pump with double-shaft seals or air-cooled top.