Define the following: -

a) Proxemics

b) Computer

c) Radar

d) Welding

e) Electric iron

f) Calculator

g) Tube light

h) Table fan

i) Burette

a) Proxemics:

Ans: (1 mark, May 2014)

Proxemics is defined as the interrelated observations and theories of man's use of space as a specialized elaboration of culture.

b) Computer:

Ans: (1 mark, Dec 2013)

Computer is defined as an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals.

c) Radar:

Ans: (1 mark, May 2014)

Radar is defined as a system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects, by sending out pulses of radio waves which are reflected off the object back to the source.

d) Welding:

Ans: (1 mark, May 2014)

Welding is defined as a process of joining similar metals by using heat and/or compression so that the pieces form a continuum of homogenous material.

e) Electric iron:

Ans: (1 mark, May 2013)

Electric iron is defined as a small household appliance: handheld piece of equipment with a flat, roughly triangular surface that, when heated, is used to press clothes to remove creases.

f) Calculator:

Ans: (1 mark, Dec 2013)

Calculator is defined as a small, portable, battery operated electronic device used to perform both basic and complex operations of arithmetic.

g) Tube light:

Ans: (1 mark, May 2013)

Tube light is defined as a glass tube whose inner wall is coated with a material that fluoresces when an electrical current causes a vapour within the tube to discharge electrons.

h) Table fan:

Ans: (1 mark, May 2013)

Table fan is defined as a machine whose blades force air to move parallel to the shaft about which blades rotate such that cooling effect is produced.

i) Burette:

Ans: (1 mark, May 2013)

Burette is defined as a graduated, uniform-bore glass tube with tap at one end, used especially in laboratory procedures for accurate fluid dispensing and measurement, especially in titration.