⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs491
The electric lines of force are____________?
Aimaginary
Bphysically existing every where
Cphysically existing near the charges
Ddepends upon case
492
If free space between the plates of a capacitor is replaced by a dielectric_____________?
AThe potential difference remains constant capacittance and energy stored increases
BThe potential difference remains constant capacittance decreases and energy increases
CThe potential difference decreases but both capacitance and energy increase
Dboth potential difference and capacitance decrease but energy increases
493
A hollow metallic sphere of 8cm diameter is charged with 4 x 10 8C. The potential on its surface will be_________________?
A900 volts
B9000 volts
C90 volts
Dzero
494
Which of the following is the major consideration to evolve a good design?
⚡Electrical EngineeringBy: Abid
ACost
BDurability
CCompliance with performance criteria as laid down in specifications
DAll of the above
495
1 Coulomb = ___________ e.
⚡Electrical EngineeringBy: Danish Rehman
A6×10-19
B6.25×1018
C1.6×1019
D6.25×10-18
496
A turbine is tripped when ?
⚡Electrical EngineeringBy: Faheem Zaman Dhaunroo
Ainlet pressure increase
Bspeed shoots up
Cexhaust gets choked
Dsteam flow gets clogged
497
Which instrument is used to measure the power of electric circuit ?
⚡Electrical EngineeringBy: Rashid Mehmood A wattmeter is an electrical instrument which is used to measure the electric power (
AWavemeter
BViscometer
CWattmeter
DNone of these
498
If the distance between the two point charges become half then force between them becomes______________?
Adouble
Bhalf
Cfour times
Dremains same
499
Solid Grounding is used for Voltages?
⚡Electrical EngineeringBy: Zaryab Baloch
AAbove 220 kv
BAbove 11kv
CBelow 660 v
DBelow 115 v