#### The Following Section consists of Multiple Choice Questions on RCC Structures Design.

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Energy and Power MCQ

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- Question 1 of 16
##### 1. Question

1 points#### When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is

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##### 2. Question

1 points#### In 0.025 W, there are

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##### 3. Question

1 points#### A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?

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##### 4. Question

1 points#### A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is

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##### 5. Question

1 points#### A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is

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##### 6. Question

1 points#### At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power?

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##### 7. Question

1 points#### If you used 400 W of power for 30 h, you have used

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##### 8. Question

1 points#### In 40 kW, there are

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##### 9. Question

1 points#### If you used 600 W of power for 60 h, you have used

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##### 10. Question

1 points#### If it takes 400 ms to use 12,000 J of energy, the power is

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##### 11. Question

1 points#### How many watt-hours represent 65 W used for 18 h?

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##### 12. Question

1 points#### For 12 V and 40 mA, the power is

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##### 13. Question

1 points#### A half-watt is equal to how many milliwatts?

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##### 14. Question

1 points#### Three hundred joules of energy are consumed in 15 s. The power is

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##### 15. Question

1 points#### The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

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##### 16. Question

1 points#### How much continuous current can be drawn from a 60 Ah battery for 14 h?

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Parallel Circuits MCQ

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- Question 1 of 13
##### 1. Question

1 points#### The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is

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##### 2. Question

1 points#### When an additional resistor is connected across an existing parallel circuit, the total resistance

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##### 3. Question

1 points#### If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is

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##### 4. Question

1 points#### Three lights are connected in parallel across a 120 volt source. If one light burns out,

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##### 5. Question

1 points#### The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is

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##### 6. Question

1 points#### The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is

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##### 7. Question

1 points#### In a certain three-branch parallel circuit, R

_{1}has 12 mA through it, R_{2}has 15 mA through it, and R_{3}has 25 mA through it. After measuring a total of 27 mA, you can say thatCorrectIncorrect - Question 8 of 13
##### 8. Question

1 points#### A sudden increase in the total current into a parallel circuit may indicate

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##### 9. Question

1 points#### The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

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##### 10. Question

1 points#### There is a total of 800 mA of current into four parallel resistors. The currents through three of the resistors are 40 mA, 70 mA, and 200 mA. The current through the fourth resistor is

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##### 11. Question

1 points#### Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

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##### 12. Question

1 points#### If one of the resistors in a parallel circuit is removed, the total resistance

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##### 13. Question

1 points#### In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

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Capacitors MCQ

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- Question 1 of 7
##### 1. Question

1 points#### A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

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##### 2. Question

1 points#### Which of the following capacitors is polarized?

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##### 3. Question

1 points#### A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

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##### 4. Question

1 points#### Of the following capacitors, which one has the highest dielectric constant?

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##### 5. Question

1 points#### A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

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##### 6. Question

1 points#### When the plate area of a capacitor increases,

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##### 7. Question

1 points#### When the voltage across a capacitor is tripled, the stored charge

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Magnetism and Electromagnetism MCQ

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- Question 1 of 20
##### 1. Question

1 points#### When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

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##### 2. Question

1 points#### The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is

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##### 3. Question

1 points#### For a given wirewound core, an increase in current through the coil

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##### 4. Question

1 points#### If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

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##### 5. Question

1 points#### When the current through the coil of an electromagnet reverses, the

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##### 6. Question

1 points#### What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m?

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##### 7. Question

1 points#### A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will

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##### 8. Question

1 points#### The unit for reluctance is

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##### 9. Question

1 points#### If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet’s air gap, the induced voltage

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##### 10. Question

1 points#### A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)?

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##### 11. Question

1 points#### The unit for permeability is

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##### 12. Question

1 points#### What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it?

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##### 13. Question

1 points#### The direction of a magnetic field within a magnet is

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##### 14. Question

1 points#### When the north poles of two bar magnets are brought close together, there will be

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##### 15. Question

1 points#### The ability of a material to remain magnetized after removal of the magnetizing force is known as

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##### 16. Question

1 points#### The induced voltage across a stationary conductor in a stationary magnetic field is

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##### 17. Question

1 points#### An electromagnetic field exists only when there is

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##### 18. Question

1 points#### When a solenoid is activated, the force that moves the plunger is

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##### 19. Question

1 points#### What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current?

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##### 20. Question

1 points#### If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage

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