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Showing posts with label MCQs. Show all posts
Showing posts with label MCQs. Show all posts

🎯 CIL MT Exam Quiz — FREE Practice App

CIL MT Electrical Quiz - Practice Before the Exam

Hi friends, a lot of you have been asking for practice material for the CIL Management Trainee exam, so here's something that should actually help. Below is a free quiz covering the Electrical Engineering syllabus - use it to test where you stand before the real exam.

If you don't know much about CIL MT recruitment yet - Coal India Limited hires Management Trainees every year across engineering branches including Electrical, and the written exam is the first big hurdle. It's not just core electrical subjects either, they mix in aptitude, reasoning and English too, so don't only stick to circuit theory and ignore the rest.

(Always check Coal India's official site for the latest notification, dates and exact pattern - syllabus and cutoffs keep changing year to year, so don't rely only on this page for that.)

What's in the quiz

Machines, Power Systems, Circuit Theory, Control Systems, plus Quant, Reasoning, English and some CIL-specific GK. There's a timer built in and it tells you instantly whether you got it right, so it's actually decent for building exam speed and not just testing knowledge.

🎯 CIL MT Exam Quiz — 718 Questions FREE Practice App

🔥 Start Practice Now 🏆

Free, no login needed, works fine on mobile

Try it topic-wise first if you're weak somewhere, then switch to the mixed/timed mode once you're comfortable. Retake it a few times over the coming weeks - most people notice a real jump in speed after the third or fourth attempt.

One thing to be clear about - this quiz isn't put out by Coal India, it's just something built for practice by fellow aspirants/bloggers. For official notifications and syllabus always go to Coal India's site directly.

If you get stuck on any topic or want specific previous papers, drop a comment below and I'll try to put something together.

Important control systems questions helpful for TsGenco , Transco, NPDCL,SPDCL

1. What is the characteristic of good control system ?
a) sensitive to parameter variation
b) Insensitive to parameter variation but sensitive to input commands
c) Insensitive to input commands
d) neither sensitive to parameter variation nor sensitive to input commands

ans: b

2. In control system, the use of negative feedback
a) eliminatea the chances of instability
b) increases the reliability
c) reduces the effect of disturbances & noise signals in the forward path
d) increases the noise signals 
 
ans: c

3. The Nyquist plot of loop transfer fiction G(s)H(s) of a closed loop control system passes through the point (-1,j0) in the G(s)H(s) plane. The phase margin of the system is 
a) 0°   b) 45° c) 90°. d) 180 ° 

ans: 0° 
Explanation:
phase margin of a system is the amount of additional phase lag required to bring the system to the point of instability or (-1,j0) 
Here system passes through (-1j0)  so no required additional phase lag
Hence phase margin 
PM = 180° + <G(jw)
= 180° -180°= 0°

4.The Nyquist plot of a open loop transfer fiction G(jw) H(jw) of a system encloses the (-1,j0) point. The gain margin of the system is 
a) less than zero 
b) zero 
c)greater than zero
d) infinity
 
ans: a

5.  while designing controller, the advantage of pole zero cancellation is

a) the system order is increased
b) the system order is reduced
c) the cost of controller becomes low
d) type of the system increases

ans:b
Explanation:
Due to pole zero cancellation , no. Of poles and zeros are reduced 
as order of the system depends on no. of poles , hence order of the system reduced 


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