# Electrical Engineering MCQs [Quiz 39]

Q1. What is the range of voltage rating available in zener diodes?
A. 2.4 volts to 200 volts
B. 1.2 volts to 7 volts
C. 3 volts to 2000 volts
D. 1.2 volts to 5.6 volts

Q2. Find which type of network provides the greatest harmonic suppression.
A. Pi-network
B. Pi-L-network
C. Inverse-Pi-network
D. L-network

Q3. What type of transformer that is used to protect technicians and operators from deadly electrical shock?
A. Absorber transformer
B. Step-down transformer
C. Step-up transformer
D. Isolation transformer

Q4. What is residual magnetism?
A. The external magnetic field when the current is flowing through the exciting coil.
B. The flux density, which exist in the iron core when the magnetic field intensity is reduced to zero.
C. The flux density, which exist in the iron core when the magnetic field intensity is at its maximum value.
D. The flux density when the magnetic core is saturated.

Q5. When batteries have cells connected in series the effect is
A. reduced output voltage
B. increased current supply
C. increased voltage supply
D. reduced internal resistance

Q6. How many OP-AMPS does window comparator require?
A. 2
B. 4
C. 3
D. 1

Q7. What is the memory element used in clocked sequential logic circuit?
A. Gates
B. Flip-flop
C. Static-RAM

Q8. Semiconductors which are considered to be “low power” or “small signal” usually have power dissipation ratings of
A. 1 watt or less
B. 5 watts or less
C. exactly 1 watt
D. 10 watt or less

Q9.                    for a transistor to be cut-off
A. Maximum current flows from emitter to collector
B. The transistor is at its operating point
C. No current flows from emitter to collector
D. There is no base current

Q10. A                   is an instruction in a source language that is to be replaced by a defined sequence of instructions in the same source language
A. statement
B. source code
C. mnemonic
D. macro-instruction

Updated: 8th September 2019 — 9:45 PM