Why is conducting a careful review of the pattern of the stoppage’s development important prior to beginning your removal work?

What will be an ideal response?


A sudden stoppage suggests a solid object in the drain; the slowly developing stoppage suggests a gradual accumulation of soap, hair, scum, etc.

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Answer the following statement(s) true (T) or false (F)

There may be times when it is desirable to have more than one START–STOP push button station to control a motor.

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As a general rule the temperature rating of most devices will not exceed ____ degrees C.



a. 45
b. 55
c. 65
d. 75

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____ decreed that only eldest sons were eligible to inherit landed estates.

A. The ancestry laws B. The laws of primogeniture C. joint-stock companies D. laws of inheritance E. treaty of the elders

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Integral ABS systems require that the high-pressure ___________ be discharged before any service is performed.

A. control sumps B. accumulators C. sump chambers D. reservoirs

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