Question 1

Carry the answer to three decimal places. A set of 2-inch-wide by $I _ { S }$ -inch-thick carbon brushes fits the brush holders too tightly. It is necessary to take $I _ { H }$ inch off the width and 0.015 inch off the thickness by sanding. Give in decimal form the thickness dimension of the carbon brushes after sanding.

Accepted Answer

.610

Question 2

Carry the answer to three decimal places. A set of 2-inch-wide by $X _ { L }$ -inch-thick carbon brushes fits the brush holders too tightly. It is necessary to take  inch off the width and 0.015 inch off the thickness by sanding. Give in decimal form the width dimension of the carbon brushes after sanding.

Accepted Answer

1.995

Question 3

Carry the answer to three decimal places. What is the total thickness of these shims taken from a bearing: 0.007 inch, 0.125 inch, 0.140 inch, 0.187 inch, and 0.004 inch?

Accepted Answer

.463

Question 4

Carry the answer to three decimal places. The cold resistance of an armature measures 0.096 ohm. After running for 5 hours, the resistance is 1.25 ohms. What is the difference in the resistance?

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 5

Carry the answer to two decimal places. A contractor requires the following for a job: BX cable, $32.65; conduit pipe, $12.56; toggle switches, $24.45; and octal boxes, $7.50. What is the total cost?

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 6

Carry the answer to three decimal places. Standard 1-inch conduit has an inside diameter of 1.575 inches and an outside diameter of 1.825 inches. Find the thickness of the wall.

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 7

Carry the answer to three decimal places. The dry cells shown add up to a total voltage of 27.5 volts. What is the average number of volts for each dry cell?

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 8

Carry the answer to two decimal places. The values of pieces of electrical equipment are as follows: one 0-150 voltmeter costing $45.50; one 0-10-kilowatt meter costing $165.50; one 0-30 ammeter costing $35.20; one 0-300 voltmeter costing $42.75; one 0-200 millivoltmeter costing $65.38; one 50-ampere shunt costing $9.85; and three 0-5 ammeters costing $45.60 each. Find the total value of these pieces.

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 9

Carry the answer to three decimal places. The weight of a spool of wire is 27.11 pounds. The spool weighs 3.2 pounds. Find the cost of the wire per pound if the cost of the spool of wire is $74.44. Express the answer to the nearer tenth of a cent.

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 10

The thickness of insulation between the copper conductor and the iron core of a motor armature are 0.002 inch of enameled insulation, 0.006 inch of cotton insulation, 0.010 inch of slot insulation, and 0.008 inch of varnished cambric insulation. Find the total thickness of insulation.

Accepted Answer

The answer of The thickness of insulation between the copper...

Question 11

Carry the answer to two decimal places. What is the cost of 1,250 feet of cable at $23.25 per one hundred feet?

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 12

When the number 0.67 is entered into a calculator, it is necessary to enter the zero to the left of the number into the calculator.

Accepted Answer

Most calculators automatically assume a leading zero before the decimal point, so entering the zero is not necessary.

Question 13

Carry the answer to three decimal places. A power company charges a city $1.2167 per street lamp per month. There are 1,125 street lamps supplied with current. What is the city's power bill per year for the street lamps?

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 14

Carry the answer to three decimal places. The field current of a motor is 1.12 amperes at no load. However, when the full load is applied, the current increases to 1.87 amperes. What is the difference in amperes from no load to full load?

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 15

Carry the answer to three decimal places. If W=3.000 inches, Y=1.750 inches, and Z=0.875 inch, find X. $E _ { C }$

Accepted Answer

The answer of Carry the answer to three decimal places....

Question 16

Carry the answer to two decimal places. Find the total weight of a 52-gallon steel drum and its contents if it contains 52 gallons of varnish weighing 8.16 pounds per gallon. The drum alone weighs 37.5 pounds.

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 17

Carry the answer to two decimal places. What is the tax bill for a contractor if his shop has an assessed valuation of $35,000, and the tax rate is $27.50 per thousand dollars of assessed valuation?

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 18

Carry the answer to two decimal places. The voltage at the terminals A and B in the diagram of the electric generator shown is 219.7 volts, and the voltage drop (loss in the line) is 3.96 volts. What is the voltage at the end of the line at points C and D? $\begin{array} { l } 
I = P / E \
C M = K N L I / E _ { e }
\end{array}$

Accepted Answer

The answer of Carry the answer to two decimal places....

Question 19

When entering a decimal number in a calculator, the whole number to the left of the decimal must be entered first.

Accepted Answer

When entering a decimal number, the whole number to the left of the decimal must be entered first followed by the decimal and any decimal places.

Question 20

Carry the answer to three decimal places. The total current (amperes) is equal to the sum of the individual currents. Find the total current in the figure shown. $$X _ { L } = \sqrt { Z ^ { 2 } - R ^ { 2 } }$$

Accepted Answer

The answer of Carry the answer to three decimal places....

Quiz 3: Decimal Fractions

Carry the answer to three decimal places. What is the total thickness of these shims taken from a bearing: 0.007 inch, 0.125 inch, 0.140 inch, 0.187 inch, and 0.004 inch?

Carry the answer to three decimal places. The cold resistance of an armature measures 0.096 ohm. After running for 5 hours, the resistance is 1.25 ohms. What is the difference in the resistance?

Carry the answer to two decimal places. A contractor requires the following for a job: BX cable, $32.65; conduit pipe, $12.56; toggle switches, $24.45; and octal boxes, $7.50. What is the total cost?

Carry the answer to three decimal places. Standard 1-inch conduit has an inside diameter of 1.575 inches and an outside diameter of 1.825 inches. Find the thickness of the wall.

Carry the answer to three decimal places. The dry cells shown add up to a total voltage of 27.5 volts. What is the average number of volts for each dry cell?

Carry the answer to three decimal places. The weight of a spool of wire is 27.11 pounds. The spool weighs 3.2 pounds. Find the cost of the wire per pound if the cost of the spool of wire is $74.44. Express the answer to the nearer tenth of a cent.

The thickness of insulation between the copper conductor and the iron core of a motor armature are 0.002 inch of enameled insulation, 0.006 inch of cotton insulation, 0.010 inch of slot insulation, and 0.008 inch of varnished cambric insulation. Find the total thickness of insulation.

Carry the answer to two decimal places. What is the cost of 1,250 feet of cable at $23.25 per one hundred feet?

When the number 0.67 is entered into a calculator, it is necessary to enter the zero to the left of the number into the calculator.

Carry the answer to three decimal places. A power company charges a city $1.2167 per street lamp per month. There are 1,125 street lamps supplied with current. What is the city's power bill per year for the street lamps?

Carry the answer to three decimal places. The field current of a motor is 1.12 amperes at no load. However, when the full load is applied, the current increases to 1.87 amperes. What is the difference in amperes from no load to full load?

Carry the answer to three decimal places. If W=3.000 inches, Y=1.750 inches, and Z=0.875 inch, find X. $E _ { C }$

Carry the answer to two decimal places. Find the total weight of a 52-gallon steel drum and its contents if it contains 52 gallons of varnish weighing 8.16 pounds per gallon. The drum alone weighs 37.5 pounds.

Carry the answer to two decimal places. What is the tax bill for a contractor if his shop has an assessed valuation of $35,000, and the tax rate is $27.50 per thousand dollars of assessed valuation?

When entering a decimal number in a calculator, the whole number to the left of the decimal must be entered first.

Carry the answer to three decimal places. The total current (amperes) is equal to the sum of the individual currents. Find the total current in the figure shown. $X _ { L } = \sqrt { Z ^ { 2 } - R ^ { 2 } }$

Quiz 3: Decimal Fractions

Carry the answer to three decimal places. What is the total thickness of these shims taken from a bearing: 0.007 inch, 0.125 inch, 0.140 inch, 0.187 inch, and 0.004 inch?

Carry the answer to three decimal places. The cold resistance of an armature measures 0.096 ohm. After running for 5 hours, the resistance is 1.25 ohms. What is the difference in the resistance?

Carry the answer to two decimal places. A contractor requires the following for a job: BX cable, $32.65; conduit pipe, $12.56; toggle switches, $24.45; and octal boxes, $7.50. What is the total cost?

Carry the answer to three decimal places. Standard 1-inch conduit has an inside diameter of 1.575 inches and an outside diameter of 1.825 inches. Find the thickness of the wall.

Carry the answer to three decimal places. The dry cells shown add up to a total voltage of 27.5 volts. What is the average number of volts for each dry cell?

Carry the answer to three decimal places. The weight of a spool of wire is 27.11 pounds. The spool weighs 3.2 pounds. Find the cost of the wire per pound if the cost of the spool of wire is $74.44. Express the answer to the nearer tenth of a cent.

The thickness of insulation between the copper conductor and the iron core of a motor armature are 0.002 inch of enameled insulation, 0.006 inch of cotton insulation, 0.010 inch of slot insulation, and 0.008 inch of varnished cambric insulation. Find the total thickness of insulation.

Carry the answer to two decimal places. What is the cost of 1,250 feet of cable at $23.25 per one hundred feet?

When the number 0.67 is entered into a calculator, it is necessary to enter the zero to the left of the number into the calculator.

Carry the answer to three decimal places. A power company charges a city $1.2167 per street lamp per month. There are 1,125 street lamps supplied with current. What is the city's power bill per year for the street lamps?

Carry the answer to three decimal places. The field current of a motor is 1.12 amperes at no load. However, when the full load is applied, the current increases to 1.87 amperes. What is the difference in amperes from no load to full load?

Carry the answer to three decimal places. If W=3.000 inches, Y=1.750 inches, and Z=0.875 inch, find X. ECE _ { C }EC​

Carry the answer to two decimal places. Find the total weight of a 52-gallon steel drum and its contents if it contains 52 gallons of varnish weighing 8.16 pounds per gallon. The drum alone weighs 37.5 pounds.

Carry the answer to two decimal places. What is the tax bill for a contractor if his shop has an assessed valuation of $35,000, and the tax rate is $27.50 per thousand dollars of assessed valuation?

When entering a decimal number in a calculator, the whole number to the left of the decimal must be entered first.

Carry the answer to three decimal places. The total current (amperes) is equal to the sum of the individual currents. Find the total current in the figure shown. XL=Z2−R2X _ { L } = \sqrt { Z ^ { 2 } - R ^ { 2 } }XL​=Z2−R2​

Carry the answer to three decimal places. If W=3.000 inches, Y=1.750 inches, and Z=0.875 inch, find X. $E _ { C }$

Carry the answer to three decimal places. The total current (amperes) is equal to the sum of the individual currents. Find the total current in the figure shown. $X _ { L } = \sqrt { Z ^ { 2 } - R ^ { 2 } }$