All types of fittings are designed to _____
A) change the direction of the pipe run
B) change the size of a pipe run
C) slow down the flow of materials in the pipe
D) join different sections of pipe together
Answer: D
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This low-equipment and operating-cost welding process is most typically used to fabricate thin materials or to do repair work and metal cutting.
a. oxyacetylene welding b. shielded metal arc welding c. gas tungsten arc welding d. gas metal arc welding
Technician A lifts a heavy load using leverage away from his body. Technician B lifts a load keeping it close to his body. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
A vehicle with a lane departure warning system uses sensors or cameras to monitor ________
A) Road line markings B) Road surface roughness C) Roadside tree density D) Vehicles behind and in front
If the contact symbol on a PLC ladder logic rung is an examine on, then
A) the field device must be a NO type of contact. B) the field device must be a NC type of contact. C) power flows in the contact if the input pin associated with the examine on contact has zero volts present. D) power flows in the examine on contact if the field device is a NO contact and the contacts are in their normal position. E) None of the above