NABTEB

Explain FOUR properties of stainless steel. – NABTEB QUESTION

i. Corrosion resistant: Stainless steel is corrosion resistant. It is very useful where corrosion will cause damages to products. E.g.…

4 years ago

List the uses of each of the tools used in gas welding. – NABTEB QUESTION

i. Colored goggle: It is used to protect the eyes from radiation of heat and sparks. ii. Spark lighter: It…

4 years ago

Mention FOUR tools used in gas welding – NABTEB QUESTION

(i) Colored goggle (ii) Spark lighter (iii) Wire brush (iv) Hammer (v) Spindle key (vi) Plier (vii) Screw driver (viii)…

4 years ago

State Hookes law of elasticity. – NABTEB QUESTION

Hooke's law of elasticity states that for an elastic material, strain is proportional to stress.

4 years ago

Explain the following: i Malleability ii Ductility iii. Toughness iv. Fusibility – NABTEB QUESTION

i Malleability: It is the ability of a metal to be bent, rolled or formed without fracture. E.g. steel, aluminum.…

4 years ago

Explain the use of these tools. (i) Scriber (ii) Spring divider (iii) Centre punch (iv) Trammel (v) Dot punch (vi) Odd – leg caliper – NABTEB QUESTION

i. Scriber: It is used to mark on draw lines or metals before cutting or drilling ii Spring divider: It…

4 years ago

Outline SIX marking out tools used in sheet metal work. – NABTEB QUESTION

(i) Scriber (ii) Spring divider (iii) Centre punch (iv) Trammel (v) Dot punch (vi) Odd – leg caliper

4 years ago

Write short note on the following: i. Radio transmitter ii. Radio receiver iv. Automatic gain control v. Automatic frequency response – NABTEB QUESTION

i. Radio Transmitter: is to generate radio-waves for transmission into space ii. Radio receiver: is a device that picks up…

4 years ago

Explain the following terms (i) De-emphasis (ii) Limiter (iii) Dynamic range (iv) FM discriminator (v) Sensitivity – NABTEB QUESTION

i. DE-EMPHASIS network is to reduce frequency modulation noise which enters the transmitted signal while route from the transmitter to…

4 years ago

What are the advantage of frequency modulation over amplitude modulation – NABTEB QUESTION

1. The major advantage of FM over AM is noise reduction. FM receivers are capable of a greater dynamic range…

4 years ago