# Electrical Engineer (Qatar Exam) Test-19

20 Questions - Developed by:
- Updated on: - 697 taken

Qatar engineering registration exam preparation

• 1
Intersecting point for WBS and OBS
• 2
The final step in the definition of a work breakdown structure is to
• 3
What is the least instructive solution to connect hijacking?

• 4
A 10MVA generator has power factor 0.866 lagging, the reactive power produced will be
• 5
For a transformer to be tested at full load conditions but consuming only losses from the main, we do
• 6
A 400V/100V, 10KVA two winding transformer is reconnected as an auto transformer across suitable voltage source. The maximum rating of such an arrangement could be

• 7
A single-phase, 2,200/200 V transformer takes 1 A at the HT side or no load at a power factor of 0.385 lagging. The iron losses are
• 8
Neglecting resistance, at constant flux density, the power required per kilogram to magnetize the iron core of a transformer is 0.8 W at 25 Hz and 2.04 W at 60 Hz. The power required per kilogram for 100 Hz is
• 9
For an inverter op-amp, what will be the equivalent output resistance?
• 10
When using Zener diode for voltage regulation, the output waveform shape will be affected by:

• 11
What is the low pass filter?
• 12
• 13
The output for the cascade amplifier is
• 14
The dynamic output resistance of transistor in CB configuration is _____ at constant IE:
• 15
Sustainable development involves
• 16
The activity on node network shown below describes a project consisting of 8 tasks A-H. Each node indicates duration in weeks relationship are finish-to-start. The minimum time to complete the project is

• 17
An engineer chooses open collector output TTL technology to provide sufficient current to drive a device. the circuit shown is implemented with a 7405 package and corresponds to the following logic function (assume that a logic 0 corresponds to)
• 18
The third harmonic of the Fourier series for the waveform in the figure has a frequency (Hz) of:
• 19
Project control is a function that takes place:
• 20
The forward pass in project network calculations determines the: