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Electrical Engineer (Qatar Exam) Test-10

20 Questions - Developed by: - Developed on: 2022-05-18 - 493 taken

Qatar engineering registration exam preparation

1

What is meant by Ethics?

A system of rules established by authority, society or custom where violation carry penalties.
Codes of behavior and courtesy.
General and abstract concept of right and wrong behavior culled from philosophy, theology, professional societies.
Accepted standards of right and wrong applied to personal behavior driven by religious and or family and environment background.

2

The collector region of transistor is doped?

Lightly
Moderately
Heavily

3

A transmitter operating at 23.6GHz has a power output of 20nW. A receiver is located 8miles from the transmitter (dB) is:

119
142
124
115

4

First line in Transmission is used for?

B-Phase
Neutral
Ground
R-Phase

5

In HDL Based digital systems the arithmetic multiplication function is difficult to synthesize. Design solution to this challenge do not include:

Hardware intensive simultaneous generation of partial products
Sequential generation of partial products
Sequential right shifts of the arguments
Implementation of booths algorithm to minimize generation of partial products

6

An OP-AMP based inverting amplifier; the INPUT impedance is:

Zero
Infinity
Equal to the feedback resistance
Equal to the resistance connected

7

An OP-AMP based Non-inverting amplifier; the INPUT impedance is:

Infinity
Equal to the resistance connected
Zero
Equal to the feedback resistance

8

An OP-AMP based inverting amplifier; the OUTPUT impedance is:

Equal to the feedback resistance
Infinity
Zero
Equal to the resistance connected

9

An OP-AMP based Non-inverting amplifier; the OUTPUT impedance is:

Equal to the resistance connected
Zero
Equal to the feedback resistance
Infinity

10

An OP-AMP based Non-inverting amplifier; the OUTPUT resistance is:

Same as the input resistance
Zero
Relative forward resistance
Infinity

11

Which circuit breaker in commonly used in the distribution level?

Tank Type Oil Circuit Breaker
SF6 Circuit Breaker
Air Blast Circuit Breaker
Air Circuit Breaker

12

In general, when comparing BJT and MOSFET transistors, three main differences:

The device that depends more on geometry (width, Length, etc.) is BJT
The device is capable of higher amplification is MOSFET
The device that dissipates no power at the input (zero input current) is MOSFET

13

Which one of the engineering characteristics can best explain the following concept? Base your decision on reason rather than emotion.

Honesty
Interpersonal Skill
Logical Thinking
Quantitative Thinking

14

According to the Nyquist Sampling Theorem, a sufficient condition for these to be no aliasing in the sampled signal is that the highest frequency in the signal point to sampling must be:

Greater than half of the sampling frequency.
Less than the sampling frequency.
Less than the half of the sampling frequency.
Greater than the sampling frequency.

15

If the signal is power doubled at a given transmitter, what is the decibel increase?

3 dB
4 dB
2 dB
0.5 dB

16

In optical communication Frequency Division Multiplexing (FDM) is called?

Single Sideband Modulation (SSB)
Polarization Division Multiplexing (PDM)
Wavelength Division Multiplexing (WDM)
Space Division Multiplexing (SDM)

17

TQM stands for:

Total Quality Management
Test Quality Manager
Total Quality Manager
Tool Quality Management

18

Intersymbol interface is eliminated by applying which of the following?

Pulse Code Modulation
Shannon Bandwidth
Nyquist Criterion
SSB Modulation

19

Which is liquid in the following substances?

Hg
Al
Ni
In

20

The power factor of an alternator is obtained from its:

None of the above
Load
Speed
Excitation

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