Chapter 4

Question 1

Add 3,259 kg and 1,429 lbs. Express answer as math.

A. 4,688 kg
B. 3,908.5 kg
C. 5,688.5 kg
D. 3,088.5 kg

Answer 1

B

Question 2

Subtract 219 liters from 138 imperial gallons. Express the answer in liters.

A. 326.7 liters
B. 408.3 liters
C. 512.9 liters
D. 605.6 liters

Answer 2

B

Question 3

Three pieces of rope have lengths 2.5 meters, 87 centimeters, and 925 millimeters. Express the total length in meters.

A. 3.2 meters
B. 3.7 meters
C. 4.0 meters
D. 4.3 meters

Answer 3

D

Question 4

Add 1/4+7/8+3/16

A) 1 4/8
B) 1 3/4
C) 1 5/16
D) 1 4/16

Answer 4

1 5/16

Question 5

Substract 1/4 from 9/16

A)5/16
B) 3/4
C) 7/16
D) 13/16

Answer 5

5/16

Question 6

Multiply 5/8 x 5/16

A) 3 1/8
B)25/128
C) 4/8
D)14/16

Answer 6

B) 25/128

Question 7

Divide 13/16 by 1/4

A)2 3/4
B) 1 2/3
C)3 1/4
D)3 2/8

Answer 7

C)3 1/4

Question 8

Convert 3 1/4 to improper fraction

A)3/12
B)12/4
C)14/4
D)1/12

Answer 8

13/4

Question 9

Convert 32/9 to a mixed number

A)3 4/9
B)3 5/9
C) 2 4/7
D)1 2/3

Answer 9

3 5/9

Question 10

Reduce 51/8 to it’s lowest term

A)6 1/4
B)4 3/8
C)6 2/8
D)6 3/8

Answer 10

D)6 3/8

Question 11

Add 6 3/8 to 9 2/3

A) 16 3/24
B) 15 5/11
C)16 1/24
D) 15 1/24

Answer 11

C)16 1/24

Question 12

Substract 3 7/8 from 8 2/3

A) 5 5/11
B)4 19/24
C)5 19/24
D) 4 5/11

Answer 12

B)4 19/24

Question 13

Multiply 3 1/2 by 5 3/4

A)20 1/8
B)15 3/8
C)16 1/2
D)20 3/6

Answer 13

A)20 1/8

Question 14

Divide 1 5/8 into 7 2/3

A)4 28/39
B)7 2/24
C) 4 29/39
D)8 4/16

Answer 14

4 29/39

Question 15

Express 5/16 as a decimal value using 3 decimal places

A)3.200
B)0.313
C)1.313
D)0.312

Answer 15

0.313

Question 16

Express 0.875 as a proper fraction reduced to it’s lowest form

A)7/8
B)875/1000
C)87.5/100
D)2/3

Answer 16

A)7/8

Question 17

Express 3 7/8 as decimal value using 3 decimal places

A)0.258
B)3.874
C)3.875
D)1.568

Answer 17

C) 3.875

Question 18

Express 5.625 in fraction form

A)5 5/10
B)4 5/8
C)5 5)8
D)5 3/4

Answer 18

C)5 5/8

Question 19

Your current wage is $15.35 per hour, and you have received a 7% increase. Calculate your new wage

A. $16.35
B. $16.42
C. $16.50
D. $17.20

Answer 19

B

Question 20

As you increase the continuous blowdown of your boiler, the total dissolved solids goes down. Is this a direct or inverse proportion?

A. Direct proportion
B. Inverse proportion

Answer 20

A

Question 21

Amperage to an electric motor increases as the flow through a centrifugal pump increases. Is this a direct proportion?

A. Yes
B. No

Answer 21

A