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WorksheetsBelt Drives MSSC
Total questions: 10
Worksheet time: 5mins
Timing belts are used in which of these drive belt drive applications:
- Stepper motor applications and automobile engines
- Conveyor systems and machine tools like lathes and band saws
- Farm equipment like conveyors and balers
- Fans, heavy industries, and pumps
Which drive alignment method is faster and more accurate than the straight edge method?
- Laser alignment
- String method
- Dial indicator method
- Straight edge method
In contrast to other types of belts, which of the following is determined to be properly adjusted when belt slap is eliminated?
- V-belts
- Flat leather belts
- O-ring belts
- Multi-V belts
The belt drive ratio is also used to calculate the belt drive torque. The formula is __________ proportional to the drive ratio.
- Directly
- Inversely
- Acutely
- Differentially
What is the diameter of the driven pulley that is turning 700 rpm, when the 6-inch driver is rotating 2,100 rpm?
- 12 inches
- 18 inches
- 24 inches
- 30 inches
Measuring a groove angle for wear is a maintenance check performed on what machine component?
- Bearing race
- Chain sprocket
- Belt drive sheave
- End shaft chamfer
What is the belt drive ratio?
- Driven sheave diameter divided by driver sheave diameter
- Driven sheave pitch diameter divided by the driver sheave pitch diameter
- Belt length divided by the belt thickness
- Belt circumference divided by the belt diameter
The following condition is an indicator of improper v-belt alignment.
- Excessive bearing and belt wear
- Extended belt wear
- Increased productivity
- Less downtime
Prior to maintenance, a machine produced 100 parts per minute. The machine was designed to produce 200 parts per minute. The drive belt was replaced. The machine should now be monitored in order to verify that __________.
- It will produce 200 parts per minute
- Preventive maintenance is being performed
- The new motors do not stress other machine components
- The machine's temperature does increase
The shaft of a belt drive may be bent if the maintenance person performs an alignment check with a straight edge and finds what condition?
- The straight edge cannot touch both of the sheaves at the same time.
- The straight edge initially contacts all four points, and after rotating the shaft, it only contacts two points.
- The straight edge contacts only three of four points of the two sheaves.
- The straight edge scrapes the sheave.
