8 questions Advanced

ECADEMY test

Introduction to temperature control

This course test contains 8 questions and can be retaken at any time.

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Question 2 of 8 Advanced

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

Question 5 of 8 Advanced

5 What is the ratio between the capital investment and running costs of a temperature control system?

Question 6 of 8 Advanced

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

Question 7 of 8 Advanced

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

Question 8 of 8 Advanced

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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: 1-12 months
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: Why is ammonia an efficient coolant?
A: Ammonia is able to absorb large amount of heat when it evaporates.
Correct
Q: What is the ratio between the capital investment and running costs of a temperature control system?
A: 1:20
Correct
Q: Which component is often ‘the weakest link’ in centrifugal pumps?
A: Shaft seal
Correct
Q: Which of the following isn’t one of the main benefits of the CM pump range?
A: External control
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.