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WorksheetsChain Drives 1
Total questions: 10
Worksheet time: 3hrs 30mins
This type of chain is suited for light weight, low speed applications.
roller chain
silent chain
rollerless chain
heavy duty chain
A number 40-3 chain has the following characteristics:
a pitch of 0.5 inches and three strands
a pitch of 4 inches and three strands
a pitch of 0.5 inches and is of the heavy duty type
a pitch of 4 inches and is of the heavy duty type
The tool used to break a chain is called a
chain breaker
chain puller
chain link
no tool is available
It is desirable that the chain wrap around the smaller sprockets be
exactly 60 degrees
less than 90 degrees
approximately 120 degrees
any amount of chain wrap is acceptable
This component is used to connect the two ends of a chain with an even number of links
roller
connecting link
chain extension
chain locker
If the driving sprocket of a chain drive has 30 teeth and the driven sprocket has 20 teeth, the driven sprocket rotates
0.67 times faster than the driving sprocket
1.5 times as fast as the driving sprocket
slower than the driving sprocket
at the same speed as the driving sprocket
The sag on a chain is measured with
a photo reflective tachometer
a dial caliper
a tape rule
a rule
Chain drives should receive maintenance
once a year
every 500 hours of operation
only when a problem occurs
every 1000 hours of operation
Power is transferred between an electric motor and a pump with a chain drive. Calculate the required number of driven sprocket teeth and chain length if the motor and pump are 20 inches apart, and the driven shaft must rotate at 1800 r/min. The driving sprocket is installed directly on the motor shaft and has 30 teeth. The plate on the motor indicates a nominal speed of 1000 r/min. The chain has a pitch of 0.5 inches.
The driven sprocket has 17 teeth and the chain length is 51.3 inches
The driven sprocket has 54 teeth and the chain length is 57.7 inches
The driven sprocket has 17 teeth and the chain length is 57.7 inches
The driven sprocket has 54 teeth and the chain length is 51.3 inches
Compared to chain drives, belt drives
require lubrication
are quieter
can transmit higher torques levels
can be dismounted without dismantling other machine parts
