CWEA E AND I 2
Assessment Questions and Answers
Verified Solutions Latest Update
Question:
What is the psi if the height of a column of water is 55.4 inches? a. 2 psi b. 4.1 psi c. 27
psi d. 55.4 psi.
Answer:
a 2 psi This is a conversion problem that use formula: 27.7 inches of water = 1 psi
Therefore: 54.4 inches x 1 psi / 27.7 inches = 2 psi
Question:
How many inches of mercury are required to obtain a pressure of 4 psi? a. 4 inches b.
8.144 inches c. 54.4 inches d. 110.8 inches
Answer:
b 8.144 inches This is a conversion problem that use formula: 1psi = 2.036 inches of
mercury (Hg) at 32° F Therefore: 4 psi x 2.036 inches Hg / 1 psi = 8.144 inches Hg
Question:
77°F is equal to how many degrees Celsius? a. 81°C b. 60°C c. 43°C d. 25°C
Answer:
d 25°C To change from the Fahrenheit scale to Celsius scale, use formula: °C = 5/9 (°F
- 32°) Therefore: °C = 5/9 (77° - 32°) °C = 5/9 (45°) °C = 25
Question:
The supply of spare parts, tools, and test instruments should be monitored by the: a.
supervisory control operation. b. limited control operation. c. computer control
operation. d. inventory control operation.
Answer:
d inventory control operation
,Question:
Which of the following is the best choice of work clothing fabric when working with
electricity? a. Cotton b. Nomex c. Nylon d. Polyester
Answer:
b Nomex
Question:
The best combination of gloves to wear when performing electrical work is: a. leather
over rubber. b. leather over cotton. c. synthetic over rubber. d. synthetic over cotton.
Answer:
a leather over rubber
Question:
Which of the following is a function of the tag and lockout disconnect switch? a. Give
instructions for the work to be performed b. Identify the individual who placed the lock
c. List all affected sub systems d. Prevent accidental startup
Answer:
b Identify the individual who placed the lock
Question:
When working with electricity, it is especially important to inspect tools for: a. bent
shafts. b. cracked handles. c. damaged insulation. d. work tips.
Answer:
c damaged insulation
Question:
Voltage testers are typically used to: a. cut off power to a circuit. b. distinguish
between AC and DC circuits. c. measure potential differences. d. verify that the circuit
is de-energized.
Answer:
d verify that the circuit is de-energized
, Question:
What is the main electrical danger when using power tools? a. Excessive heat b. Low
resistance grounding c. Overcurrent d. Short circuit
Answer:
d Short circuit
Question:
How many gallons of water will it take to fill a 3 cubic foot container?
Answer:
3 cubic feet x 7.48 gallons cubic feet = 22.4 gallons
Question:
If a gallon of gasoline weighs 7.0 pounds, what would be the weight of a 350 gallon
tank full of gasoline?
Answer:
350 gallons x 7.0 pounds / gallons = 2,450 pounds
Question:
The rated capacity of a pump is 500 gallons per minute (GPM). Convert this capacity to
million gallons per day (MGD).
Answer:
500 GPM x 1 MGD / 694 GPM = 0.72 MGD
Question:
A chemical feed pump is calibrated to deliver 50 gallons per day (GPD). What is the
calibrated chemical feed in gallons per minute (GPM)?
Answer:
50 gal / day x 1 day / 24hr x 1 hr / 60 min= 0.035 GPM
Assessment Questions and Answers
Verified Solutions Latest Update
Question:
What is the psi if the height of a column of water is 55.4 inches? a. 2 psi b. 4.1 psi c. 27
psi d. 55.4 psi.
Answer:
a 2 psi This is a conversion problem that use formula: 27.7 inches of water = 1 psi
Therefore: 54.4 inches x 1 psi / 27.7 inches = 2 psi
Question:
How many inches of mercury are required to obtain a pressure of 4 psi? a. 4 inches b.
8.144 inches c. 54.4 inches d. 110.8 inches
Answer:
b 8.144 inches This is a conversion problem that use formula: 1psi = 2.036 inches of
mercury (Hg) at 32° F Therefore: 4 psi x 2.036 inches Hg / 1 psi = 8.144 inches Hg
Question:
77°F is equal to how many degrees Celsius? a. 81°C b. 60°C c. 43°C d. 25°C
Answer:
d 25°C To change from the Fahrenheit scale to Celsius scale, use formula: °C = 5/9 (°F
- 32°) Therefore: °C = 5/9 (77° - 32°) °C = 5/9 (45°) °C = 25
Question:
The supply of spare parts, tools, and test instruments should be monitored by the: a.
supervisory control operation. b. limited control operation. c. computer control
operation. d. inventory control operation.
Answer:
d inventory control operation
,Question:
Which of the following is the best choice of work clothing fabric when working with
electricity? a. Cotton b. Nomex c. Nylon d. Polyester
Answer:
b Nomex
Question:
The best combination of gloves to wear when performing electrical work is: a. leather
over rubber. b. leather over cotton. c. synthetic over rubber. d. synthetic over cotton.
Answer:
a leather over rubber
Question:
Which of the following is a function of the tag and lockout disconnect switch? a. Give
instructions for the work to be performed b. Identify the individual who placed the lock
c. List all affected sub systems d. Prevent accidental startup
Answer:
b Identify the individual who placed the lock
Question:
When working with electricity, it is especially important to inspect tools for: a. bent
shafts. b. cracked handles. c. damaged insulation. d. work tips.
Answer:
c damaged insulation
Question:
Voltage testers are typically used to: a. cut off power to a circuit. b. distinguish
between AC and DC circuits. c. measure potential differences. d. verify that the circuit
is de-energized.
Answer:
d verify that the circuit is de-energized
, Question:
What is the main electrical danger when using power tools? a. Excessive heat b. Low
resistance grounding c. Overcurrent d. Short circuit
Answer:
d Short circuit
Question:
How many gallons of water will it take to fill a 3 cubic foot container?
Answer:
3 cubic feet x 7.48 gallons cubic feet = 22.4 gallons
Question:
If a gallon of gasoline weighs 7.0 pounds, what would be the weight of a 350 gallon
tank full of gasoline?
Answer:
350 gallons x 7.0 pounds / gallons = 2,450 pounds
Question:
The rated capacity of a pump is 500 gallons per minute (GPM). Convert this capacity to
million gallons per day (MGD).
Answer:
500 GPM x 1 MGD / 694 GPM = 0.72 MGD
Question:
A chemical feed pump is calibrated to deliver 50 gallons per day (GPD). What is the
calibrated chemical feed in gallons per minute (GPM)?
Answer:
50 gal / day x 1 day / 24hr x 1 hr / 60 min= 0.035 GPM
