IndiaBIX

Online Electronics Test - Electronics Test 9

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.

If the current in the given circuit is increased to 24 mA, the source voltage must have tripled.

True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Ohm's Law
2.

Calculate the voltage at point C in the given circuit.

+1.48 V
+0.94 V
+11.6 V
+3 V
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Series Circuits
3.
If four 10 komega.gif resistors are in series with a single 20 komega.gif resistor and one of the parallel resistors shorts, the voltage across the other parallel resistors ________.
increases
decreases
remains the same
drops to zero
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Series-Parallel Circuits
4.
What is the total inductance, assuming no mutual inductance?

mcq8_1030_1.gif
12 mH
6 mH
0.73 mH
0 mH
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Inductors
5.
A magnetic field results whenever a current flows through a conductor.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Inductors
6.
A transformer can be designed to step up or step down dc voltage.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Inductors
7.

The current lags the voltage in the given circuit.

True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : RLC Circuits and Resonance
8.
Rectifier output polarity depends upon:
cycles of input
capacitor polarity
half or full wave
diode installation
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Diodes and Applications
9.
The number of electrons in a stable atom is the same as the number of protons in its nucleus.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Diodes and Applications
10.
A two-diode rectifier will not operate without a _________.
center-tapped transformer
voltage regulator
capacitive filter
phase-inverting transformer
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Diodes and Applications
11.
The signal voltage gain of an amplifier, Av, is defined as:
mca17_1003a1.gif
Av = IC × RC
mca17_1003c1.gif
mca17_1003d1.gif
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Transistors and Applications
12.
The ideal output impedance for an operational amplifier is 0 omega.gif.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Operational Amplifiers
13.
A mathematical operation that determines the rate of change of a curve is called __________.
differentiation
integration
curve averaging
linear regression
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Basic Op-Amp Circuits
14.
What does the CRT oscilloscope display?
voltage and period
current and frequency
rms voltage and current
frequency and voltage
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Alternating Current vs Direct Current
15.
Test equipment selection enables the technician to both generate signals and:
change circuit conditions
inject signals
sense circuit conditions
change signal frequencies
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Alternating Current vs Direct Current
16.
When is a P-N junction formed?
in a depletion region
in a large reverse biased region
the point at which two opposite doped materials come together
whenever there is a forward voltage drop
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Semiconductor Principles
17.
The sum-of-products form is a Boolean expression that describes the ANDing of two or more OR functions.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Logic Circuit Simplification
18.
The time needed for an output to change as the result of an input change is known as:
noise immunity
fanout
propagation delay
rise time
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Standard Logic Devices (SLD)
19.
When the S and the R inputs are both HIGH the output of an S-R NOR latch will be unpredictable.
True
False
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Flip-Flops and Timers
20.
In a flash analog-to-digital converter, the output of each comparator is connected to an input of a:
decoder
priority encoder
multiplexer
demultiplexer
Your Answer: Option
(Not Answered)
Correct Answer: Option
Discuss about this problem : Discuss in Forum
Learn more problems on : Analog and Digital Converters
*** END OF THE TEST ***
Time Left: 00:29:56
Post your test result / feedback here:

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers