by Sunday | Oct 2 | NABTEB QUESTIONS
i Malleability: It is the ability of a metal to be bent, rolled or formed without fracture. E.g. steel, aluminum. ii Ductility: It is the ability of a metal to be drawn into thin wire e.g. copper. iii. Toughness: Ability of a metal to resist sudden heavy load without...
by Sunday | Oct 2 | NABTEB QUESTIONS
i. Scriber: It is used to mark on draw lines or metals before cutting or drilling ii Spring divider: It is used to draw arcs, circles or lines on metals iii. Centre punch: It is used to mark or locate a point with the aid of a hammer before drilling or cutting. iv....
by Sunday | Oct 2 | NABTEB QUESTIONS
(i) Scriber (ii) Spring divider (iii) Centre punch (iv) Trammel (v) Dot punch (vi) Odd – leg caliper
by Sunday | Oct 2 | NABTEB QUESTIONS
i. Radio Transmitter: is to generate radio-waves for transmission into space ii. Radio receiver: is a device that picks up electromagnetic waves sent out by a transmitter amplifiers them, detest them, so that they can be hard and amplifiers them to normal listening...
by Sunday | Oct 2 | NABTEB QUESTIONS
i. DE-EMPHASIS network is to reduce frequency modulation noise which enters the transmitted signal while route from the transmitter to the receiver as well as any such noise which may enter at the front end of the receiver. ii. LIMITER CIRCUIT: Is used to remove...
by Sunday | Oct 2 | NABTEB QUESTIONS
1. The major advantage of FM over AM is noise reduction. FM receivers are capable of a greater dynamic range than AM receivers. 2. All transmitter power in FM is useful where as in AM most of it is in carrier which services no useful purpose. 3. In FM, there is no...