Monday, 20 January 2020

Electrical Engineering practice bits -12

Electrical Engineering practice bits -12




The following practice bits are useful the Electrical Aspirants  who are preparing for the Different competitive exams like RRB JE ,SSC JE, ECET , GATE , PSU, PGECET,DRDO CEPTAM ,TSTRANSCO, TSGENCO, TSSSPDCL , TSNPDCL AE AND SE, APTRANSCO, APGENCO, ....ETC
MCQ Questions With Answers

1.     Chisels are made of
a.     High carbon steel
b.    High speed steel
c.     Cast steel
d.    Tungsten steel
2.     Units for inductance is
a.     Faraday
b.    Coulomb
c.     Henry
d.    Ohms
3.     Units for capacitance
a.     Faradays
b.    Ampere
c.     Voltage
d.    Henry
4.     Why does the earth conductor provide a path to go
a.     For over current
b.    For high voltage
c.     For leakage current
d.    For low voltage
5.     The balanced condition  potential of neutral is
a.     Low
b.    High
c.     Medium
d.    Zero
6.     Five 2V cells are connected in parallel then o/p voltage is
a.     1V
b.    1.5V
c.     1.75V
d.    2V
7.     Charging of sulphated battery produces___heat
a.     No
b.    Very little
c.     Less
d.    More
8.     H2 evolved during charging produces explosive mixture when it is more than
a.     2%
b.    4%
c.     6%
d.    8%
9.     Which of the following materials have higher retentivity of magnetism
a.     Alnico
b.    Manganese
c.     Copper
d.    Bismuth
10.  An LC oscillator cannot be used to produce __ frequencies
a.     High
b.    Audio
c.     Very low
d.    Very high
11.  In case of DC machines, mechanical losses are primary function of
a.     Current
b.    Voltage
c.     Speed
d.    None
12.  Iron losses in a DC machines are independent of variation in
a.     Speed
b.    Load
c.     Voltage
d.    Speed voltage
13.  In DC generators current to the external circuit from armature is given through
a.     Commutator
b.    Solid connection
c.     Slip rings
d.    None
14.  A DC generator can be considered as
a.     Rectifiers
b.    Prime moves
c.     Rotating amplifies
d.    Power pump
15.  One tesla is
a.     1 wb/m2
b.    1wb/m voltage
c.     1m/wbvoltage
d.    None
16.  Which winding  in a transformer has more number of turns
a.     Low voltage wdg
b.    High voltage wdg
c.     Primary wdg
d.    Secondary wdg
17.  Efficiency of a power transformer is of the order of
a.     100%
b.    98%
c.     50%
d.    25%
18.  Which wdg of transformer has less cross-sectional area
a.     Primary wdg
b.    Secondary wdg
c.     Low voltage wdg
d.    High voltage wdg
19.  An induction motor with 950rpm speed will have
a.     8 poles
b.    6 poles
c.     4 poles
d.    2 poles
20.  An induction motor is identical to
a.     DC compound motor
b.    DC series motor
c.     Synchronous motor
d.    Asynchronous motor
Answers :

1.A
2.C
3.A
4.C
5.D
6.D
7.D
8.D
9.A
10.C
11.C
12.B
13.A
14.C
15.C
16.B
17.B
18.D
19.B
20.D


FOR MORE PRACTICE BITS CLICK BELOW LINKS

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-20.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-19.html  

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-18.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-17.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-16.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-15.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-14.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-13.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-12.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-11.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-10.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-9.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-8.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-7.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-6.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-5.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-4.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-3.html

https://www.electricalforu.com/2020/01/electrical-engineering-practice-bits-2.html

https://www.electricalforu.com/2019/12/1.html

Do not Delete prevent copying

Self Learners By Maniramakrishna

Popular Posts

Comments

Loom solar

Email subscribe

Enter your email address:

Delivered by FeedBurner

Loom solar 2