Question 1 (4 points)
Saved
Question 1 options:
Using Fig. 1-16 in the text, answer the following questions:
A. What is the recommended motor lubrication interval?
3 months or 1000 hr
B. For a 324 motor frame size what is the recommended lubrication
quantity?
1.5 in^3
C. How many "CAUTION" fields are on this page of the manual?
3
D. How long should the motor be operated following greasing?
The periods between greasing of the motor bearings can vary primarily with the severity of the service
conditions under which the motor operates.
Question 2 (3 points)
Saved
Question 2 options:
What are three ways smart-phones can be used by maintenance
technicians while performing maintenance activities? (3pts)
Data networking
Audio Recorders
Cameras
Question 3 (4 points)
Saved
Question 3 options:
What are the four main steps of the troubleshooting process? (4pts)
Investigate Problem
Isolate Problem
Remedy Problem
Document Problem
Question 4 (4 points)
Saved
Question 4 options:
List four types of joining metal that use heat. (4pts)
GTAW
GMAW
SMAW
OFW
Question 5 (2 points)
Saved
Why are cleanliness and good housekeeping important in facilities
plant maintenance? (2pts)
To prevent injuries, safe work spaces reduces
workplace injuries that helps lower costs.
Question 6 (3 points)
Saved
Question 6 options:
From Fig. 2-10 in the text, answer the following questions: (3pts)
What is the Permissible Exposure Level of carbon monoxide?
50 PPM in a 8 hr. Time frame
What are the effects and symptoms or 1000-2000ppm after
2hrs?
Confusion, headache, nausea
What concentration and duration will cause unconsciousness?
2000 PPM to 2500 PPM and 30 minutes
Question 7 (3 points)
Saved
How much torque is applied to a 1inch bolt by a 200lb technician
exerting 50lbs of force on a 3ft long wrench? Show your work! (3pts)
torque = Force x distance = 50lbs x 3ft = 150 lb-ft
Question 8 (4 points)
Saved
Question 8 options:
Identify the valve types shown (4pts)
pressure reducing / regulating valve
triple duty valve
check valve
butterfly valve
pressure relief valve
globe valve
ball valve
gate valve
Question 9 (3 points)
Saved
Question 9 options:
What are the three classifications of material properties explained in
the text and briefly describe each classification? (3pts)
mechanical properties describes its behavior under mechanical load
physical properties include thermal, electrical and other properties of a material
chemical properties are related to the molecular composition and chemical reactivity of materials
Question 10 (4 points)
Saved
Question 10 options:
Using Fig 2-53 from the text answer the following question: (4pts)
A. What is the case number? 046-10-0625
B. What is the location of the accident? boiler room 1-drop cord
connection to overhead bus
C. What is the type of the accident? contact with/by
Moving charge of electricity/electrical current
D. What part of the body was injured? hand and shoulder
Hand/shoulder
Question 11 (5 points)
Saved
Question 11 options:
What is a circuit setter? (5pts)
Circuit setters is a calibrated balance valve that ensures optimum flow of balance water and accurate
measurement.
List four characteristics of this device:
Flow Range up to 7,200 GPM.
has two pressure ports
has calibrated handle
using for balancing flow
can measure flow
Question 12 (2 points)
Saved
What are the two main classifications of bearings and what is the
purpose of bearings in mechanical systems? (3pts)
Antifriction and Friction Bearing . The purpose of a bearing in a mechanical system is to reduce friction
and maintain clearance between stationary and moving parts.
Question 13 (2 points)
Saved
Why is shaft alignment important in mechanical drive systems? (2pts)
Proper motor shaft alignment in a mechanical drive system increases the operating life span of rotating
machinery while Misaligned shafts can generate excessive forces during equipment operation that place
significant stress on the rotating components.
Question 14 (3 points)
Saved
Question 14 options:
Explain the following terms: (2pts)
A. IOM Installation, Operation, and Maintenance
B. SOO Safety of Operations
Question 15 (1.5 points)
Saved
Which of the following are types of mechanical drive couplings? (3pts)
Question 15 options:
1) pipe
2) spring
3) grid
4) train car
5) flange
6) block and jaw
7) chain
8) elastomeric
9) gear
10) sleeve
11) universal joint
Question 16 (2 points)
Saved
What is soft foot? (2pts)
Soft foot is a condition that occurs when one or more machine
feet do not make complete and solid contact with the base plate.
Question 17 (3 points)
Saved
Question 17 options:
Using Fig 5-46 from the text answer the following questions: (3pts)
A. Copper concentration from the sample on 6/15?
500
B. What is the condition rating of the current sample?
CRITICAL
C. What is the lubricant in use?
MOBIL MOBILREAR 627
Question 18 (3 points)
Saved
Question 18 options:
What are the three classifications of V-belts? (3pts)
Narrow
standard
fractional-horsepower
Question 19 (1.5 points)
Saved
Question 19 options:
How is roller chain sized? (3pts)
pitch
roller width
roller diameter
Question 20 (3 points)
Saved
How much power is required to apply the torque in question 7 during 2
minutes? Show your work! (3pts)
Fxd
50lbs x 3ft
HP = --------- = ------------- = 0.00227 HP
t x 550
120seconds x 550