Once building lines are established on the batter boards, each string is held in alignment by using a _____
a. nail
b. clamp
c. saw kerf
d. staple
c
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These springs are designed to transmit energy by a turning or twisting action.
a. compression spring b. extension spring c. torsion spring d. flat spring
Typically, the fan will run on high speed when the outdoor temperature is above ____________________ °F.
Fill in the blank(s) with the appropriate word(s).
____________________ or hybrid vigor comes from the cross breeding of two or more breeds to get an optimal animal
Fill in the blank(s) with correct word
A 600 V, dc shunt motor has armature and field resistances of l.5 ? and 600 ?, respectively. When the motor runs unloaded, the line current is 3 A, and the speed is 1000 rpm.
a. Calculate motor speed when the load draws an armature current of 30 A. b. If the load is constant-torque type, what is the motor speed when 3 ? resistance is added to the armature circuit? c. Calculate the motor speed if the field is reduced by 10%.