NIMS CNC OPERATOR TEST QUESTIONS & ANSWERS SOLVED 100% CORRECT!

Given an 18 ¾" length of stock, how many 2 ½'" pieces can be cut from it? - Answer-7.5 (18.75/2.5) How often should you check the lubrication levels on a machine? - Answer-Daily On a blueprint, what do you call a dimension in a box (boxed dimension)? - Answer-Base When should you wear your safety glasses in the shop? - Answer-Always What is the RPM formula for drilling? - AnswerWhat is the code for rapid traverse? - Answer-G00 What is the code for linear feed (must have an F word with it)? - Answer-G01 0. What is the code for program stop? - Answer-M00 What is the code for optional stop? - Answer-M01 What is the code for program end rewind? - Answer-M30 What is the code for zero return? - Answer-G28 What is the code for constant surface speed (SFM)? - AnswerWhat is the code for fixture offset (work offset #1)? - AnswerWhat is the code for incremental positioning? - Answer-G91 What is the code for absolute positioning? - Answer-G90 What is the code for inch mode? - Answer-G20 What is the code for metric mode? - Answer-G21 What is the code for tool change ON THE MILL? - AnswerWhat is the code for spindle activation clockwise OR FORWARD? - Answer-M03 What mode would you select for changing a tool on a mill or lathe? - Answer-M06 What is the difference between the 1.384 dimension and the .945 dimension? - Answer- - Answer- - Answer- - AnswerWhat screen gives you the information for height offset value? - AnswerWhat mode on a CNC milling center would you select to send the machine home? - Answer-G28 If you were boring a hole specified at 2.125" deep with a tolerance of +/-.001 and measured the part at 2.122" deep, what would you add or subtract from the Tool length offset to bore the hole to proper depth? - AnswerA print calls out a finished part length of 3.25 inches. How long would you cut the stock for each part if you leave 1/8" for sizing? - AnswerWhich of the buttons below would you depress if you were using M01 in a program? - Answer- . What button below would you push to manually input and physically execute programming commands? - Answer- 3. What button would you press to view the distance to go while running a program? - AnswerThe tolerance range is set on a dial indicator. If this dial indicator is checking the diameter of a part turned on a lathe, what would you add or subtract from the geometry offset (X) to machine the part at the mean dimension? - AnswerA part dimension states that the depth of a bored hole must be within .001" (+/- .0005). When machining the first part how should the TLO (tool length offset) be set? - AnswerYou are milling a part using cutter diameter compensation. The part measures 2.004" after the machining is done (using the .250" to 2.250 dimensions below). What must you do to the cutter diameter value to cut the part to size? - Answer- . What considerations should you take into account when adding soluble oil to a CNC machine? - AnswerYou are turning a shaft and it measures 1.752" on the diameter, and the print calls out a 1.750" +/- .0005 diameter. What must you add or subtract in the geometry offset (X value) to make the part cut to the dimension - AnswerOn a standard CNC lathe, what is the axis that controls the diameter? - Answer-x On a standard CNC lathe, what is the axis that controls length? - Answer-ZWhy are machines homed (or sent to "zero return" position)? - AnswerStanding in front of a horizontal machining center, what axis moves toward and away from you - AnswerWhile standing in front of a horizontal machining center, what is the axis that goes up and down (toward the ceiling and floor)? - Answer