Tools
Every tool box must contain THIS. THEY are most commonly made of carbon steel. THEIR ends are strengthened and hardened, but the main body is soft and strong. There are different types of THEM. A ball-peen, which has a round head, is used for working metal and riveting. Another special type of THIS is used for driving or extracting nails.
Hammer
THIS is used for tightening and loosening screws. There are cross-headed (Phillips) and flat-bladed types of THEM. Another type often used today is a Torx ... which has a head like a 6-pointed star.
Screwdriver
A unit of electrical power
Watt
This Serbian-American inventor has worked on multiple projects, and has over 100 patents, among many are speedometers, electrical motors and turbines. Nowadays his name is closely assosiated with a car brand.
Nikola Tesla
What year a telephone was invented?
1876
THIS may be single or double-ended. The size of an adjustable ... refers to its length and the capacity refers to the maximum opening width of the jaws. A ... is used for tightening or loosening nuts.
Wrench/Spanner
THEY are used to grip pieces of metal. There are many different types of THEM. Combination ... can be used for gripping, pulling, turning and also for cutting thin wire.
Pliers
The unit of electric potential
Volt
This Scottish inventor has made electricity of a large scale possible, by imporving a steam engine and connecting it to the generator
James Watt
The first commercially successful personal computer Altair 8800 was designed in what year?
1974
THIS is a tool with a serrated blade which is mostly used for cutting wood. There are several types of ... for cutting different types of wood. A hand ... will give a more accurate cut than a power saw. A ... is a special type with a fine-toothed blade which is used for cutting metal and harder materials.
Saw (special one hacksaw)
THESE are used for pinching, pulling or gripping an object. They are often used to grip metal which is too hot to touch.
Pincers
A unit of electric current
Ampere
A German-born inventor, who was able to explain the relationship between voltage, current and resistance.
George Simon Ohm
The first plane was invented in what year?
1903
THIS is a useful holding tool. By means of THIS the workpiece is held steady allowing the mechanic to perform his work. They are made of cast iron or forged steel. However, the jaw is made of tool steel.
A vice
... are commonly used for cutting sheet metal. A ... machine may cut sheet metal up to 3 mm thick.
Shears
Unit of frequency
Hertz
An English inventor who has proven that static electricity, electricity made by a magnet and electricity made by a battery are essentially the same thing.
Michael Faraday
First commercially successful light bulb was invented in what year?
1879
THEY have to a great extent been replaced by advanced machines. Still, it seems that THEY cannot be fully replaced. THEY are made from carbon steel. The size of the file is given in millimetres or inches and refers to the blade length. A ... is used for smoothing rough edges on metal.
Files
a small tool that is used to turn a special type of screw. It is hexagonal shaped and can be used to tighten and loosen bolts and screws which have a hexagonal socket in the head.
Allen keys or Hex keys
Unit of electrical resistance
Ohm
A German inventor who was the first person to create an apparatus to both broadcast and receive the radio waves. Later inventions such as television, radios and telephones are based on his findings.
Heinrich Hertz
First printing press was invented in what year?
Approximately 1440