CWEA Electrical AND Instrumentation 2
Practice Evaluation Questions and
Answers
Verified Solutions Latest Update
Question:
What is the proper definition of an engine?
Answer:
B. It is machine designed to convert energy into useful mechanical motion
Question:
What is wet stacking and how can it be prevented?
Answer:
C.Wet stacking is a condition in diesel engines in which unburned fuel passes on into
the exhaust system.[1] The word "stacking" comes from the term "stack" for exhaust
pipe or chimney stack. The oily exhaust pipe is therefore a "wet stack".
Question:
To check a flywheel face runout, where should the dial indicator be positioned?
Answer:
B. The base of the bell housing and the pointer on the flywheel face
Question:
If a 38-tooth gear running at 360 rpm is driving another gear at 144 rpm, what is the
number of teeth on the driven gear?
Answer:
B. 95
, Question:
Which of the following is required for a sealed ball bearing?
Answer:
C. It does not need to be lubricated under normal use
Question:
A DAFT is an acronym meaning?
Answer:
A. Dissolved Air Flotation Thickener
Question:
What is the governing agency that permits odor control systems?
Answer:
D. AQMD
Question:
At what pressure rating would you use a blower instead of a fan?
Answer:
B. 7psi
Question:
Which of the following valves is unsuitable for high-pressure flow?
Answer:
C. A needle valve
Question:
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is
at 1,200 gallons. How many gallons does the delivery driver need to add to bring it to
70% capacity?
Answer:
A. 14,900 gal
Practice Evaluation Questions and
Answers
Verified Solutions Latest Update
Question:
What is the proper definition of an engine?
Answer:
B. It is machine designed to convert energy into useful mechanical motion
Question:
What is wet stacking and how can it be prevented?
Answer:
C.Wet stacking is a condition in diesel engines in which unburned fuel passes on into
the exhaust system.[1] The word "stacking" comes from the term "stack" for exhaust
pipe or chimney stack. The oily exhaust pipe is therefore a "wet stack".
Question:
To check a flywheel face runout, where should the dial indicator be positioned?
Answer:
B. The base of the bell housing and the pointer on the flywheel face
Question:
If a 38-tooth gear running at 360 rpm is driving another gear at 144 rpm, what is the
number of teeth on the driven gear?
Answer:
B. 95
, Question:
Which of the following is required for a sealed ball bearing?
Answer:
C. It does not need to be lubricated under normal use
Question:
A DAFT is an acronym meaning?
Answer:
A. Dissolved Air Flotation Thickener
Question:
What is the governing agency that permits odor control systems?
Answer:
D. AQMD
Question:
At what pressure rating would you use a blower instead of a fan?
Answer:
B. 7psi
Question:
Which of the following valves is unsuitable for high-pressure flow?
Answer:
C. A needle valve
Question:
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is
at 1,200 gallons. How many gallons does the delivery driver need to add to bring it to
70% capacity?
Answer:
A. 14,900 gal
