Question 1 of 25
Hints left: 3
Q1
What happens to the viscosity of a fluid as temperature increases?
Q2
In a Carnot engine, what is the role of the cold reservoir?
Q3
What type of thermodynamic process occurs at constant volume?
Q4
Which of the following is a common refrigerant?
Q5
What type of heat transfer occurs when fluid moves?
Q6
Which law relates to the conservation of energy in thermal processes?
Q7
What is the purpose of a thermal switch?
Q8
What is the primary purpose of using an economizer in a boiler system?
Q9
What is the primary principle of operation for a vapor-compression refrigeration system?
Q10
What does the term "thermal mass" refer to?
Q11
Which type of heat transfer involves the movement of fluid?
Q12
What is the unit of thermal conductivity?
Q13
What is the function of a pressure gauge in a heating system?
Q14
What type of energy is stored in a material due to its temperature?
Q15
What is the effect of increasing temperature on gas viscosity?
Q16
Which property of a material affects its ability to conduct heat?
Q17
What is the effect of increasing the temperature on gas pressure?
Q18
What is the main purpose of a heat exchanger?
Q19
What is the effect of increasing the surface area in heat exchangers?
Q20
What is the role of a vacuum in thermal insulation?
Q21
What happens to the pressure of a gas when its volume decreases?
Q22
What principle does a thermos bottle operate on?
Q23
What is the principle behind the operation of a steam engine?
Q24
In which process does heat flow from a colder body to a hotter body?
Q25
What happens to the boiling point of water at higher altitudes?