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WorksheetsBelt Drives 1
Total questions: 10
Worksheet time: 3hrs 30mins
Which of these belts are well suited for timing mechanisms?
Flat belt
V-belt
Synchronous belt
Multiple V-Belt
All types can be used
What makes the pitch diameter of a sheave change?
The belt used
The distance between the shaft centers
The speed of the driving shaft
The belt tension
The speed ratio between the driving and driven sheaves
What is the drive misalignment called that results when the sheaves are at a different angle with the vertical plane?
Parallel misalignment
Horizontal angular misalignment
Vertical angular misalignment
Planar misalignment
Vertical parallel misalignment
Which tool is used to check for sheave parallel alignment?
Straightedge
Combination square
Tape rule
Feeler gauge
No tool is needed, the eye is precise enough
Which parameters are represented by the two scales on a belt tension tester?
Deflection distance and belt span
Deflection force and belt type
Deflection force and belt width
Deflection distance and small sheave diameter
Deflection force and belt span
If the driving sheave of a belt has an outside diameter of 6 inches and the driven sheave has an outside diameter of 3 inches, the driven sheave rotates
two times faster than the driving sheave
half as fast as the driving sheave
slower than the driving sheave
at the same speed as the driving sheave
impossible to tell from the given data
What is a photo-reflective tachometer used for?
Measures the torque on a sheave.
Measures the speed of a sheave.
Takes a picture of a sheave as it rotates.
Measures the wear on a belt.
Examines the surface of a sheave.
Which type of belt is used with sprockets?
F.H.P V-belt
Timing belt
Flat belts used on conveyors
Multiple V-belts
None
Power is transferred between an electric motor and a pump with a belt drive. Calculate the required driven sheave pitch diameter and belt length if the motor and pump shafts are 20 inches apart and the pump shaft must rotate at 1800 r/minute. The driving sheave is installed directly on the motor shaft and has a pitch diameter of 5 inches. The plate on the motor indicates a nominal speed of 1000 r/minute.
Driven sheave pitch diameter is 2.8 inches and belt length is 52.2 inches.
Driven sheave pitch diameter is 9 inches and belt length is 52.2 inches.
Driven sheave pitch diameter is 9 inches and belt length is 62 inches.
Driven sheave pitch diameter is 2.8 inches and belt length is 62 inches.
Impossible to tell from the given data
What should be used to clean belts?
A solvent
Soap and water
A glycerine/spirit mixture
Sandpaper
They should never be cleaned
