Quantities and Units MCQs

Question 1

The difference between scientific and engineering notation is

Accepted Answer

All of the above

Answer

powers of ten representation

Answer

single vs. multiple digits before decimal point

Answer

groupings of multiples of three digits

Question 2

The number 14.8 can also be expressed as

Accepted Answer

1.48 × 101

Answer

1.48 × 10–1

Answer

1.48 × 100

Answer

1.48 × 102

Question 3

The digits in a measured number that are known to be correct are called

Accepted Answer

significant digits

Answer

accuracy digits

Answer

error digits

Answer

precision digits

Question 4

Which of the following is expressed in engineering notation?

Accepted Answer

9.1 × 10–6

Answer

470 × 105

Answer

82 × 10–2

Answer

14.7 × 108

Question 5

The unit for frequency is the

Accepted Answer

hertz

Answer

ampere

Answer

watt

Answer

second

Question 6

Add 21 mA and 8000 mu.gifA and express the result in milliamperes.

Accepted Answer

29 mA

Answer

21.8 mA

Answer

218 mA

Answer

290 mA

Question 7

Dividing 24 × 1011 by 3 × 104 equals

Accepted Answer

8 × 107

Answer

8 × 104

Answer

8 × 1011

Answer

8 × 1015

Question 8

Pico is what relation to micro?

Accepted Answer

one-millionth

Answer

one-tenth

Answer

one-hundredth

Answer

one-thousandth

Question 9

The number 5200 ×10–2 equals ___ × 101.

Accepted Answer

5.2

Answer

0.52

Answer

52

Answer

520