by Sunday | Oct 6 | NABTEB QUESTIONS
Drilling is defined as the process or method of creating or originating hole in any of the engineering materials, using the drilling machine and the drill bit.
by Sunday | Oct 6 | NABTEB QUESTIONS
1. Neutral flame (Equal vol.) Oxygen and Acetylene 2. Carburizing flame (Excess Acetylene) 3. Oxidizing flame (Excess Oxygen) 1. Neutral Flame: The proper mixture of oxygen and Acetylene is used for most welds. 2. Carburizing Flame: A low-temperature flame for touch...
by Sunday | Oct 6 | NABTEB QUESTIONS
Forging Tools Uses Set hammer Used in confined places or on small surface Punches This is used for making round or square holes in hot metal Flatter Used for the finishing of flat surfaces Hollow bit tong Used for holding round stock...
by Sunday | Oct 6 | NABTEB QUESTIONS
Bench Drilling machine or table drilling machine.
by Sunday | Oct 6 | NABTEB QUESTIONS
Portable electric drill is a hand drilling machine which uses electricity to generates the motion required in the drilling. It can be carried from work to work hence the name portable electric drill.
by Sunday | Oct 6 | NABTEB QUESTIONS
1. Tolerance: This is the difference between the upper and lower limit of any dimension. It is the amount allowed for imperfection. e.g. Upper limit – lower = Tolerance 2. Actual Size: This is the real dimension given to any component outside the limits. I.e (20+...
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