Engineering

Question 1

1The SI unit of energy is the

Easy

A. watt B. joule C. newton D. volt

Question 2

21 megawatt (MW) is equal to

Easy

A. 0.001 W B. 1,000 W C. 1,000,000,000 W D. 1,000,000 W

Question 3

31 megawatt is equal to

Easy

A. 1,000 W B. 10⁹ W C. 100 W D. 1,000,000 W

Question 4

4Convert 500 mm to metres.

Easy

A. 0.05 m B. 5 m C. 0.5 m D. 50 m

Question 5

5A length is measured as 25.0 ± 0.1 cm. What is the percentage uncertainty?

Medium

A. 4% B. 0.1% C. 2.5% D. 0.4%

Question 6

6Convert 2.5 kN to newtons.

Easy

A. 25 N B. 250 N C. 25,000 N D. 2,500 N

Question 7

71 bar equals

Hard

A. 1 Pa B. 10 Pa C. 1000 Pa D. 100,000 Pa

Question 8

8How many millimetres are in 2.5 m?

Easy

A. 250 mm B. 2,500 mm C. 25 mm D. 25,000 mm

Question 9

9A vernier caliper can usually measure to

Easy

A. 1 m B. 1 cm C. 0.02 mm or 0.1 mm D. 0.0001 mm

Question 10

10Precision describes how

Medium

A. large the reading is B. close repeated measurements are to each other C. close a measurement is to the true value D. expensive the instrument is