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Multiple Choice Quiz: Passive Components

<^< Assessment: Passive Components | Course Index | Written Questions: Passive Components >^>(:nl:)

>>frame round<< Question 1:

The values available in the E6 series are:

(a) 1.0, 1.5, 2.2, 3.3, 4.7, 6.8
(b) 1.0, 2.2, 3.3, 4.7, 6.8, 8.2
(c) 1.0, 2.2, 3.3, 5.6, 6.8, 8.2 >><<

>>id=example1 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 2:

The resistance of a light dependent resistor:

(a) falls with increasing light level
(b) increases with increasing light level
(c) remains constant irrespective of light level >><<

>>id=example2 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 3:

Two capacitors, each of 220 µF, are connected in parallel. The capacitance of the combination will be:

(a) 110µF
(b) 220µF
(c) 440µF >><<

>>id=example3 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 4:

If the resistance of a material falls with increasing temperature it is said to have:

(a) negative temperature coefficient
(b) positive temperature coefficient
(c) zero temperature coefficient >><<

>>id=example4 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 5:

The circuit symbol shown is a:

(a) fixed resistor
(b) preset resistor
(c) variable resistor >><<

>>id=example5 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 6:

Two capacitors, each of 15 µF, are connected in series. The capacitance of the combination will be:

(a) 7.5µF
(b) 15µF
(c) 30µF >><<

>>id=example6 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 7:

The fourth band of a four band resistor is marked in silver. This indicates a tolerance of:

(a) 5%
(b) 10%
(c) 20% >><<

>>id=example7 class=question margin=10px frame round<< Answer: B >><<

>>frame round<< Question 8:

The charge, Q, present in a capacitor is given by the relationship:

(a) Q = C / V
(b) Q = C V
(c) Q = ½ C V'^2^' >><<

>>id=example8 class=question margin=10px frame round<< Answer: B >><<

>>frame round<< Question 9:

The primary and secondary voltages present in a loss-free transformer are 240 V and 12 V respectively. If the secondary is connected to a 6 &#937; resistor, which one of the following gives the primary current?

(a) 100 mA
(b) 200 mA
(c) 2 A >><<

>>id=example9 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 10:

A graph of flux linkage, N&#934;, plotted against current, I, for an inductor will take the form of:

(a) a curve that rises rapidly
(b) a curve that falls rapidly
(c) a straight line >><<

>>id=example10 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 11:

The third band of a four band resistor is marked in black. This indicates a multiplier of:

(a) 1
(b) 10
(c) 100 >><<

>>id=example11 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 12:

Two inductors, each of 6.8 mH, are connected in parallel. The inductance of the combination will be:

(a) 3.4 mH
(b) 6.8 mH
(c) 13.6 mH >><<

>>id=example12 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 13:

A loss-free transformer has 1200 primary turns and 300 secondary turns. If the primary winding is connected to a 200 V AC supply which one of the following gives the secondary voltage:

(a) 50 V
(b) 100 V
(c) 800 V >><<

>>id=example13 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 14:

A 100 nF capacitor has a tolerance of ±5%. The maximum possible value for this component will be:

(a) 95 nF (b) 105 nF (c) 110 nF >><<

>>id=example14 class=question margin=10px frame round<< Answer: B >><<

>>frame round<< Question 15:

Which one of the following statements is TRUE?

(a) The windings in a transformer are linked by the voltage that is applied to the transformer's core
(b) The windings in a transformer are linked by the current that flows in the transformer's core
(c) The windings in a transformer are linked by the magnetic flux that appears in the transformer's core >><<

>>id=example15 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 16:

The resistance of a light dependent resistor:

(a) falls with increasing light level
(b) increases with increasing light level
(c) remains constant irrespective of light level >><<

>>id=example16 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 17:

An inductor of 100 mH has a tolerance of ±20%. The maximum possible value for this component will be:

(a) 80 mH
(b) 110 mH
(c) 120 mH >><<

>>id=example17 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 18:

Two resistors, each of 15 &#937;, are connected in series. The resistance of the combination will be:

(a) 7.5&#937;
(b) 15&#937;
(c) 30&#937; >><<

>>id=example18 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 19:

A graph of charge, Q, plotted against voltage, V, for a capacitor will take the form of:

(a) a curve that rises rapidly
(b) a curve that falls rapidly
(c) a straight line. >><<

>>id=example19 class=question margin=10px frame round<< Answer: C >><<

>>frame round<< Question 20:

The third band of a four band resistor is marked in orange. This indicates a multiplier of:

(a) 1,000
(b) 10,000
(c) 100,000 >><<

>>id=example20 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 21:

Two resistors, each of 220 &#937;, are connected in parallel. The resistance of the combination will be:

(a) 110&#937; (b) 220&#937; (c) 440&#937; >><<

>>id=example21 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 22:

What numeric value is indicated by a red band in the resistor colour code?

(a) 1
(b) 2
(c) 3 >><<

>>id=example22 class=question margin=10px frame round<< Answer: B >><<

>>frame round<< Question 23:

A resistor is marked with the following coloured bands:

Red, Red, Red, Gold

The value of the resistor will be:

(a) 222 &#937; 5%
(b) 2.2 k&#937; 5%
(c) 22.2 k&#937; 5% >><<

>>id=example23 class=question margin=10px frame round<< Answer: B >><<

>>frame round<< Question 24:

In a loss-free transformer:

(a) the primary and secondary powers will be the same
(b) the secondary power will be greater than the primary power
(c) the primary power will be greater than the secondary power >><<

>>id=example24 class=question margin=10px frame round<< Answer: A >><<

>>frame round<< Question 25:

Two inductors, each of 22 mH, are connected in series. The inductance of the combination will be:

(a) 11 mH
(b) 22 mH
(c) 44 mH >><<

>>id=example25 class=question margin=10px frame round<< Answer: C >><< (:nl:)(:table style="clear:both":)