EAL ELEC3/008: Principles of electrical science

Solve the following calculation –20 ÷ –4

• –5

• 5

• 8

• 6

Which of the following is correct?

• 22 kW = 22 × 10³ = 22,000 W

• 22kW = 22 × 10³ = 2200 W

• 22 kW = 22 × 10¹ = 22,000 W

• 22 kW = 22 × 10² = 220,000 W

Work out angle A.

• 53.1°

• 36.87°

• 38.65°

• 90°

What is the result of the following calculation 20 + 4 × 3 = ?

• 72

• 32

• 83

• 64

What is the result of the following calculation (42 × 4) + (6 ÷ 3) -2 = ?

• 42

• 56

• 420

• 168

What is the result of the following calculation 10000 × 100?

• 100,000

• 1000

• 10,000

• 1,000,000.

What is the result of 8³ ?

• 8

• 24

• 512

• 16

What is the resulting fraction?

• 
• 
• 
• 

Transpose the equation in order to find I

• 
• 
• 
• 

What kind of angle is shown here?

• right angle

• straight line

• obtuse

• acute.