⟩ Explain me how long has it been since you've had a leak with copper piping?
It honestly has been awhile. When I first learned to solder, I always had leaks, but as I did it more I got better and only on occasion would a copper pipe leak.
It honestly has been awhile. When I first learned to solder, I always had leaks, but as I did it more I got better and only on occasion would a copper pipe leak.
In ultra-sonic machining, the metal is removed by A. using abrasive slurry between the tool and work B. direct contact of tool with the work C. maintaining an electrolyte between the work and tool in a very small gap between the two D. erosion caused by rapidly recurring spark discharges between the tool and work
The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle. A. Correct B. Incorrect
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is A. carbide, ceramic, cermet, borazon B. ceramic, carbide, borazon, cermet C. cermet, carbide, ceramic, borazon D. borazon, ceramic, carbide, cermet
The different spindle speeds on a lathe form A. arithmetical progression B. geometrical progression C. harmonical progression D. any one of these
In the relation VT(n) = C, the value of n for carbide tools is A. 0.1 to 0.2 B. 0.20 to 0.25 C. 0.25 to 0.40 D. 0.40 to 0.55
In orthogonal cutting system, the maximum chip thickness occurs at the middle. A. Correct B. Incorrect
Lapping is an operation of A. making a cone-shaped enlargement of the end of a hole B. smoothing and squaring the surface around a hole C. sizing and finishing a small diameter hole D. producing a hole by removing metal along the circumference of a hollow cutting tool
If the helix angle of the drill is made __________ 30°, then the torque required to drive the drill at a given feed will be more. A. equal to B. less than C. more than
What is RF Engineering?
In which areas RF Engineer works?