Workholding devices are used on drilling machines because:
A) They always automatically position the place to be drilled directly under the spindle and then guide the drill
B) They keep the workpiece from turning with the drill and they provide a rigid setup that is safe
C) They help to reduce worker fatigue that results from holding the workpiece by hand
D) All of the above
B
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Which of the following terms characterizes the trench warfare on the western front?
a. attrition b. decisive battles c. rapid encirclements d. constant movement
The three-phase induction motor operates at synchronous speed.
Answer the following statement true (T) or false (F)
When compared to rafters, ridgeboards are typically _____
a. half-again as wide b. one dimension wider c. one dimension narrower d. twice as wide
The client's acceptance of the proposal and signing of the contract are accomplished following a successful presentation of the final proposal. When is the deposit received?
a. during the initial proposal c. during the final proposal b. during the interim proposal d. the day the project actually begins