Estion 1
t yet
swered
Irked out of
10
The term CNC stands for:
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NO : THIS FILE FOR PLM-1000 MILL
IN USE 3 X 2 X 1.5 MACHINABLE 1
N2 : INITIALIZE STOCK TO X=0, Ya!
N3 ; 11 IS A 1/4 END MILL
IN4 ; T2 IS A 1/8 END MILL
N5 M06 T01 ; Toolchange 1/4 Endi
N6 M08; Contouring Operation, COI
NW M3 1500.00
N8 GO ZO. 0700 : Retract
N9 GO XO. 3000 YO. 2000
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Select one:
a. Commanding Numerical Computer
b. Controlling Numerical Computer
c. Computer Numerical Control
d. Computer Numerical Commands

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.