Describe the hammer-off-dolly repair technique.
What will be an ideal response?
Work hardening is the hardening of a material when cold worked. Work hardening can be significant with non-heat-treated alloys, and because of this, the material can have significant cracking. Work hardening can be lessened by heating aluminum to soften it for straightening. To make sure that cracking did not occur during repairs, technicians should afterwards test the area by using a dye penetrant.
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The oil filter is an integral part of the ____________________ system
Fill in the blank(s) with the appropriate word(s).
The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150 Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following:
A three-phase, 60 Hz, six-pole, Y-connected, 480 V induction motor has the
following parameters
a. Motor speed
b. Maximum torque at 60 Hz and 50 Hz
c. Motor Current at 50 Hz
Once the structure design has been completed, surveying methods are used to lay out the _____
a. building lines b. floor plan c. water lines d. elevations
Water pumps ____________
A) Only work at idle and low speeds and are disengaged at higher speeds B) Use engine oil as a lubricant and coolant C) Are driven by the engine crankshaft or camshaft D) Disengage during freezing weather to prevent radiator failure