Multiple Choice Questions in Electronics Engineering Part 13

Multiple Choice Questions in Electronics Engineering Part 13

1.      What is anything that has weight had occupied space which may be a solid, liquid or gas?

A.    Alloy

B.     Matter

C.     Amalgam

D.    Compound

2.      What is the capacitive reactance of a 33 microfarad capacitor at 6500 Hz?

A.    0.74 ohms

B.     7.4 ohms

C.     96 ohms

D.    1122 ohms

3.      Which of the following materials refers to as a recipient of impurity element?

A.    Phosphorous

B.     Antimony

C.     Arsenic

D.    Gallium

4.      In the operation of dry cells, we normally refer to the supply of current to load resistance where its current neutralizes the separated charges at the electrodes.

A.    Aligning the cells

B.     Charging the cells

C.    Discharging the cells

D.    Polarizing the cells

5.      They are special class C amplifiers that are biased at 3 to 10 times the normal cutoff and used to generate frequency that is a harmonic of a lower frequency.

A.    Frequency generators

B.     Frequency stabilizers

C.    Frequency multipliers

D.    Frequency amplifiers

6.      In voltmeter, the purpose of series resistor is to _________.

A.    increase speed of meter movement

B.     decrease the current range

C.     decrease the voltage range

D.    increase the voltage range

7.      ICs that are combinations of monolithic and film of discrete components or any combinations thereof to allow flexibility in circuits.

A.    Hybrid IC

B.     Micro IC

C.     Mixed IC

D.    Combined IC

8.      An instrument used to record the electric potentials associated with the electrical currents that traverse the heart.

A.    Electrograph

B.     Electrolysis

C.     Electroencephalograph

D.    Electrocardiograph

9.      SUBRACT: 11001(subscript 2) – 1001(subscript 2).

A.    10001

B.     10100

C.     10010

D.    10000

10.  What is the name of an electrode found in a pentode but not in a tetrode?

A.    Control grid

B.     Screen grid

C.     Signal grid

D.    Suppressor grid

11.  What is the magnetic equivalent to electrical voltage?

A.    Flux

B.     Reluctance

C.    Magnetomotive force

D.    Magnetic field

12.  The effect of 60 Hz AC 40-100 mA or DC 160-300 mA on the human body.

A.    Mascular failure

B.     Refex action

C.     Surprise

D.    Respiratory failure

13.  How many junctions are there in a semiconductor diode?

A.    Two

B.     One

C.     None

D.    Four

14.  A transformer composed of two or more coils which are wound around a non metallic core.

A.    Metallic core transformer

B.     Free core transformer

C.     Iron core transformer

D.    Air core transformer

15.  How many half wave rectifiers will make up a half wave voltage doubler?

A.    6

B.     2

C.     8

D.    4

16.  What materials are meter pointers normally made?

A.    Copper

B.     Iron

C.     Zinc

D.    Aluminum

17.  In NPN transistor, when emitter junction is forward biased and collector junction is reversed biased, the transistor will operate in

A.    cut off region

B.     saturation region

C.     active region

D.    inverted region

18.  An instrument used to detect presence, sign and in some configurations the magnitude of an electric charge by the mutual attraction or repulsion of metal foils or pith balls.

A.    Electroscope

B.     Electrometer

C.     Electron microscope

D.    Electrograph

19.  What is the term we use to refer to the instructions we give a computer to perform?

A.    Processor

B.     Program

C.     Hardware

D.    Software

20.  The total number of magnetic lines force leaving or entering the pole of a magnet.

A.    Potential field

B.     Magnetic field

C.     Magnetic space

D.    Magnetic flux