CWEA MECHANICAL TECHNOLOGIST
GRADE 1 ACTUAL TEST PAPER COMPLETE
QUESTIONS AND SOLUTIONS TESTED
ANSWERS
◉ What is the area of a manhole that measures 40 inches in
diameter? Answer must be in ft^2
Answer: 40in / 12in = 3.3ft
0.785 * 3.3 *3.3 = 8.71ft^2
◉ CBT Demo Website
Answer: www.cwea.org/cbt
◉ What is 1 cubic foot in cubic inches (ft^3)?
Answer: 1,728 cubic inches
◉ How many gallons is one cubic foot (ft^3)?
Answer: 7.48gal
◉ How many pounds (lbs) is one cubic foot (ft^3) of water?
,Answer: 62.43 lbs
◉ 1 gal of water weighs how much in lbs?
Answer: 8.34 lbs
◉ What is 1 ft^3/sec in gal/min?
Answer: 448.8 gal/min
◉ What is 1 MGD in Gal/min?
Answer: 694 gal/min
◉ What is 1 horsepower equal to in foot-pounds/minute?
Answer: 33,000 foot-pounds/minute
◉ 1 psi = ________ feet of water
Answer: 2.31 feet of water
◉ 1 kilowatt equals how many watts?
Answer: 1000 watts
◉ What is 1 horsepower in watts?
Answer: 746 watts
,◉ What does BTU mean?
Answer: British Thermal Unit, a measure of thermal heat
◉ What is 1 horsepower equal to in BTU/minute?
Answer: 42.45
◉ What is 1 MGD in cubic feet (ft^3) per second?
Answer: 1.55 ft^3/sec
◉ What is 1 BTU equal to in foot-pounds?
Answer: 778 foot-pounds
◉ What is 1 watt equal to in BTU/hour?
Answer: 3,412 BTU/hour
◉ 1 Thermal Unit is equal to ______________ BTU
Answer: 100,000 BTU
◉ Which welding process is most commonly used for small pipe
maintenance welding?
Answer: OxyAcetylene gas welding
, ◉ What types of jobs would you need Shielded metal-arc welding
for?
Answer: Constructing pipelines, tanks, industrial construction,
structures
◉ What types of jobs do you need Gas metal-arc welding for?
Answer: Deep groove welding, automotive repair, manufacturing
heavy equipment
◉ What types of jobs do you use Gas tungsten-arc welding for?
Answer: Thin sections of stainless steel and other precise jobs
dealing with dissimilar metals
◉ What is wet stacking and how can it be prevented?
Answer: It is unburned fuel collecting in the exhaust due to light or
no load conditions.
◉ To check flywheel face turnout, where should the dial indicator be
positioned?
Answer: The base on the well housing and the pointer on the
flywheel face.
◉ What issues arise with excessive flywheel face turnout?
GRADE 1 ACTUAL TEST PAPER COMPLETE
QUESTIONS AND SOLUTIONS TESTED
ANSWERS
◉ What is the area of a manhole that measures 40 inches in
diameter? Answer must be in ft^2
Answer: 40in / 12in = 3.3ft
0.785 * 3.3 *3.3 = 8.71ft^2
◉ CBT Demo Website
Answer: www.cwea.org/cbt
◉ What is 1 cubic foot in cubic inches (ft^3)?
Answer: 1,728 cubic inches
◉ How many gallons is one cubic foot (ft^3)?
Answer: 7.48gal
◉ How many pounds (lbs) is one cubic foot (ft^3) of water?
,Answer: 62.43 lbs
◉ 1 gal of water weighs how much in lbs?
Answer: 8.34 lbs
◉ What is 1 ft^3/sec in gal/min?
Answer: 448.8 gal/min
◉ What is 1 MGD in Gal/min?
Answer: 694 gal/min
◉ What is 1 horsepower equal to in foot-pounds/minute?
Answer: 33,000 foot-pounds/minute
◉ 1 psi = ________ feet of water
Answer: 2.31 feet of water
◉ 1 kilowatt equals how many watts?
Answer: 1000 watts
◉ What is 1 horsepower in watts?
Answer: 746 watts
,◉ What does BTU mean?
Answer: British Thermal Unit, a measure of thermal heat
◉ What is 1 horsepower equal to in BTU/minute?
Answer: 42.45
◉ What is 1 MGD in cubic feet (ft^3) per second?
Answer: 1.55 ft^3/sec
◉ What is 1 BTU equal to in foot-pounds?
Answer: 778 foot-pounds
◉ What is 1 watt equal to in BTU/hour?
Answer: 3,412 BTU/hour
◉ 1 Thermal Unit is equal to ______________ BTU
Answer: 100,000 BTU
◉ Which welding process is most commonly used for small pipe
maintenance welding?
Answer: OxyAcetylene gas welding
, ◉ What types of jobs would you need Shielded metal-arc welding
for?
Answer: Constructing pipelines, tanks, industrial construction,
structures
◉ What types of jobs do you need Gas metal-arc welding for?
Answer: Deep groove welding, automotive repair, manufacturing
heavy equipment
◉ What types of jobs do you use Gas tungsten-arc welding for?
Answer: Thin sections of stainless steel and other precise jobs
dealing with dissimilar metals
◉ What is wet stacking and how can it be prevented?
Answer: It is unburned fuel collecting in the exhaust due to light or
no load conditions.
◉ To check flywheel face turnout, where should the dial indicator be
positioned?
Answer: The base on the well housing and the pointer on the
flywheel face.
◉ What issues arise with excessive flywheel face turnout?
