Capstone Revision 5

Which of the following best describes a site plan

• It shows the mounting positions of components but little or no wiring information

• It shows the shape and dimensions of a site.

• It generally shows a floor plan of where equipment is to be positioned and general cable runs.

• It shows the operation of an electrical circuit by showing how the

  circuit is connected, rather than its physical layout.

What is the function of a plan legend

• It allows a large area to be represented on a relatively small area of paper or screen

• It gives the reader extra information such as environmental conditions

• It identifies what the symbols on the plan represent.

• It informs the reader how the plan is to be implemented

Which of the following best describes a break contact

• Normally closed contacts that open when operated.

• How contacts sit when the circuit is de-energised.

• A contact that has both a normally open contact and a normally closed

  side.

• Normally open contacts that close when operated.

Which of the following best describes a make contact

• How contacts sit when the circuit is de-energised.

• A contact that changes state when the circuit is deenergised

• Normally open contacts that close when operated

• Normally closed contacts that open when operated

Calculate the power dissipated in a 24 V DC circuit given that the current flowing is 0.2 A.

• 12 W

• 6 W

• 8.4 W

• 4.8 W

Calculate the length of side B of the right-angled triangle shown given the following values: A = 30, C = 50

• 20

• 25

• 30

• 40

Calculate the length of side C of the right angle shown given the following values: A = 22, B = 36

• 42.19

• 45.32

• 39.33

• 43.95

Calculate the value of the hypotenuse if the adjacent side is 21

• 29.63

• 32.81

• 24.35

• 27.41

Calculate the value of the oposite side if the adjacent side is 32

• 37.2

• 26.85

• 36.97

• 39.26

What is the value of the opposite side if the hypotenuse is 12.85

• 9.73

• 9.87

• 8.25

• 8.15