Mechanical Technologist Grade 1 CWEA
Certification EXAM STUDY GUIDE 2025/2026 |
VERIFIED QUESTIONS AND CORRECT
ANSWERS | LATEST VERSION
Mechanical Technologist Grade 1 CWEA Certification Exam Study
Guide (2025/2026)
Section 1: Safety Procedures & Regulations
1. What is the primary purpose of Lockout/Tagout (LOTO)
procedures?
a) To increase productivity during maintenance
b) To safeguard employees from the unexpected energization of
equipment
c) To label tools and parts
d) To document maintenance schedules
2. Before entering a confined space, what is a critical first step?
a) Notify a supervisor via text message
b) Have a buddy system with one other person
c) Perform atmospheric testing and obtain a permit
d) Bring a high-powered flashlight
3. Which class of fire involves energized electrical equipment?
a) Class A
b) Class B
c) Class C
d) Class D
4. A Material Safety Data Sheet (MSDS/SDS) provides
information on:
, a) Equipment warranty details
b) The chemical properties and hazards of a substance
c) The payroll schedule for technicians
d) The manufacturer's stock price
5. The maximum safe working load for a sling or chain should:
a) Be estimated by an experienced operator
b) Never be exceeded
c) Be 50% of the breaking strength
d) Only be considered for loads over 10,000 lbs
Section 2: Pumps & Pumping Systems
6. The most common type of pump used for moving high volumes
of raw wastewater is a:
a) Positive displacement pump
b) Diaphragm pump
c) Centrifugal pump
d) Peristaltic pump
7. Cavitation in a centrifugal pump is best described as:
a) The formation and collapse of vapor bubbles in the pump
b) A worn mechanical seal
c) The normal sound of pump operation
d) A misaligned coupling
8. The primary purpose of a pump mechanical seal is to:
a) Align the pump to the motor
b) Prevent leakage between the rotating shaft and the stationary
housing
c) Increase pump discharge pressure
d) Support the pump shaft
, 9. If a pump is running but producing no flow, a likely cause is:
a) The pump is primed
b) A closed suction valve or clogged impeller
c) The motor voltage is too high
d) The discharge pressure is too low
10. Pump shaft alignment is critical to prevent:
a) Increased flow rate
b) Premature bearing and seal failure
c) The pump from starting
d) Changes in fluid viscosity
Section 3: Motors, Drives, & Power Transmission
11. The standard unit for measuring rotational speed of a
motor is:
a) Feet per second (FPS)
b) Revolutions Per Minute (RPM)
c) Amps (A)
d) Volts (V)
12. A V-belt drive that is too tight can lead to:
a) Improved efficiency
b) Bearing failure in the motor and driven equipment
c) Belt slippage
d) Speed increase
13. The device used to protect an electric motor from
overcurrent conditions is a:
a) Pressure switch
b) Flow meter
Certification EXAM STUDY GUIDE 2025/2026 |
VERIFIED QUESTIONS AND CORRECT
ANSWERS | LATEST VERSION
Mechanical Technologist Grade 1 CWEA Certification Exam Study
Guide (2025/2026)
Section 1: Safety Procedures & Regulations
1. What is the primary purpose of Lockout/Tagout (LOTO)
procedures?
a) To increase productivity during maintenance
b) To safeguard employees from the unexpected energization of
equipment
c) To label tools and parts
d) To document maintenance schedules
2. Before entering a confined space, what is a critical first step?
a) Notify a supervisor via text message
b) Have a buddy system with one other person
c) Perform atmospheric testing and obtain a permit
d) Bring a high-powered flashlight
3. Which class of fire involves energized electrical equipment?
a) Class A
b) Class B
c) Class C
d) Class D
4. A Material Safety Data Sheet (MSDS/SDS) provides
information on:
, a) Equipment warranty details
b) The chemical properties and hazards of a substance
c) The payroll schedule for technicians
d) The manufacturer's stock price
5. The maximum safe working load for a sling or chain should:
a) Be estimated by an experienced operator
b) Never be exceeded
c) Be 50% of the breaking strength
d) Only be considered for loads over 10,000 lbs
Section 2: Pumps & Pumping Systems
6. The most common type of pump used for moving high volumes
of raw wastewater is a:
a) Positive displacement pump
b) Diaphragm pump
c) Centrifugal pump
d) Peristaltic pump
7. Cavitation in a centrifugal pump is best described as:
a) The formation and collapse of vapor bubbles in the pump
b) A worn mechanical seal
c) The normal sound of pump operation
d) A misaligned coupling
8. The primary purpose of a pump mechanical seal is to:
a) Align the pump to the motor
b) Prevent leakage between the rotating shaft and the stationary
housing
c) Increase pump discharge pressure
d) Support the pump shaft
, 9. If a pump is running but producing no flow, a likely cause is:
a) The pump is primed
b) A closed suction valve or clogged impeller
c) The motor voltage is too high
d) The discharge pressure is too low
10. Pump shaft alignment is critical to prevent:
a) Increased flow rate
b) Premature bearing and seal failure
c) The pump from starting
d) Changes in fluid viscosity
Section 3: Motors, Drives, & Power Transmission
11. The standard unit for measuring rotational speed of a
motor is:
a) Feet per second (FPS)
b) Revolutions Per Minute (RPM)
c) Amps (A)
d) Volts (V)
12. A V-belt drive that is too tight can lead to:
a) Improved efficiency
b) Bearing failure in the motor and driven equipment
c) Belt slippage
d) Speed increase
13. The device used to protect an electric motor from
overcurrent conditions is a:
a) Pressure switch
b) Flow meter
