engineerscareergroup.in Electrical Engineering Scholarship Test Sample Paper I & II
Name of the Organization : Engineers Career Group
Exam : Scholarship Test
Subject : Electrical Engineering
Document Type : Model Question Paper
Paper : Sample Paper-1 & II
Website : http://www.engineerscareergroup.in/Scholarship-Test-Sample-Papers.aspx
Download Question Paper :
Sample Paper 1 : https://www.pdfquestion.in/uploads/23603-Electrical-I.pdf
Sample Paper 2 : https://www.pdfquestion.in/uploads/23603-Electrical-II.pdf
Engineers Career Group Scholarship Electrical Sample Paper
** Click the links Above to download the PDF file(s) for Sample Papers
** Scholarship test will consist of total 30 questions.
Related : Engineers Career Group Computer Science Engineering Scholarship Test Sample Paper I & II : www.pdfquestion.in/23599.html
** This test keeps 20 technical questions (of concerned branch) and 10 questions of mathematics and aptitude.
Question Type
** Test will consists of both multiple choice and numerical input questions.
** 33% for one mark and 66% for two mark question.
** No negative marking for Numerical Input questions.
Electrical Engineering
Q.1- In a four pole, 3-phase,50hz induction machines, the slip rings of the machine are open circuited. The frequency of the voltage across slip ring is 75hz. The rotor speed is.
(a) 750 rpm
(b) 1500rpm
(c) 2250 rpm
(d) 3850rpm
Q2. A 6 pole, 3-phase induction motor develops the maximum torque at 1000rpm. When operated from a 60hzs supply. Rotor resistance per phase is 1.2 O. Neglecting stator impedance the speed at which it will develop maximum torque. When operated from 50hzr supply will be.
(a) 1000rpm.
(b) 600rpm.
(c)800rpm.
(d) 200rpm .
Q3. The sending of voltage of a feeder with reactance 0.2p.m is 1.2p.u.if the reactive power at the receiving end of the feeder is 0.3p.u, the approximate drop of volts in feeder is.
(a) 0.2p.u.
(b) 0.06p.u.
(c) 0.05p.u.
(d) 0.072p.u.
Q4. The corona loss on a particular transmission system at 50hz is 1km per phase per km. the corona loss of the system at 25hz will be.
(a) 1kw/phase/km.
(b) 0.5kw/phase/km
(c)0.66kw/phase/km.
(d) none of the above.
Q5.Consider a system whose state model is given below :
The eigen values for the system are :-
(a) 2,3
(b) 1,0
(c)0,2
(d)1,2
Q6. The condition of maximum power transfer to the load in circuit given below will be.
(a) Rs = RL
(b) Rs =0
(c) RL = 0
(d) Rs= 8
Q.7 in the table A are shown configuration of circuits and in table B are shown. Equivalent resistance between terminals 1&2. Match the table and select correct answer using codes given below the table.
Codes:
a1 b2 c3 d4
b1 a2 c3 d4
d1 c2 a3 b4
b1 a2 c3 d4
Q.8- Three, two winding transformers heaving following leakage independence are connected in parallel without overloading any transform ate, maximum load that can be supplied by three transformers will be.
Transformer 1. 100kVA – 0.02pu.
Transformer 2. 75KVA – 0.03pu.
Transformer 3. 50KVA – 0.025pu.
(a) 300KVA.
(b) 150KVA.
(c) 225KVA.
(d) 190KVA.
Q.9- A 3-phase alternator with line voltage 200?3 is to be synchronized with infinite bus.The maximum value of RMS voltage across synchronizing switch will be.
(a) 600 volts.
(b)400v3 volts.
(c)400 volts.
(d)300 volts.
Q.10-consider the transformation T1 & T2 which are idea & single phase. The current drawn from the source(Is) in the given configuration will be.
(a) 0.4A
(b) 1A
(c) 5A
(d) 4A
Q.11- A dc shunt motor draws an amative current of 5 Amps under normal rooted conditions and it is during a constant power load. If both the failed flux and armature terminal voltage are halved, then the ampere current will be.
(a) 5A
(b) 10A
(c) 2.5A
(d) 1.25A
Q.12- The corona loss on a particular transmission system at 50HZ is 1kw per phase per km. the corona loss of the system at 25 hz will be.
(a) 1kw/phase/km.
(b) 0.5kw/phase/km.
(c) 0.66kw/phase/km.
(d) None of the above
Q.13- Which of the following power versus load angle diagram is correct to maintain the transient satiating of the cylinder
(a) Only I
(b) Only i & ii
(c) Only iii & iv
(d) Only iv
Q.14- For a single line to ground fault for an unloaded generator in one phase. If xd = x2 = 0.25pu and x0 =0.15pu and xn= 0.05pu. For initial pre fault voltage of 1pu. The magnitude of fault current will be.
(a) 3.75pu.
(b)1.54pu.
(c)1.43pu.
(d) 1.25pu.
Q.15- A 3-phase transformer rated for 33kv/6.6kv is connected and protecting current transformer on the low voltage side have a ratio of 400/5. The ratio of the current transforms on H.V side is.
(a) 80:5
(b) 80/v3:5
(c) 80:5v3
(d) 80:5/v3
Q.16- Which of the following statement is correct.
S1 :- load flow is used for power system planning.
S2 :- load flow is basically a transient state solution of power system.
S3 :- load flow is basically a steady state solution and it gives initial condition of the system for studying the transient behavior of the system.
S4 :- choosing one of the buses as a slack bus makes model admittance matrix non singular this makes it easy to handle.
S5 :- choosing one the buses as slack bus balances the power dosses and thus modal admittance matrix become singular i.e easy to handle.
(a) Only S5 & S1 are correct.
(b) Only S2 & S4 are correct.
(c) Only S5 & S3 & S2 are correct.
(d) S1 & S3 & S4 are correct.
Q.17- The open loop transfer function of a unity feedback system is : What is the error constant for unit ramp input ?
(a) 8
(b) 0
(c)2.5
(d) 5
Q.18- A unit feedback system is characterized by an open loop transfer function , Find wn & settling time ts if damping ratio , E = 0.5
(a)100 , 0.8 sec.
(b) 10 rad/sec, 0.8 sec.
(c)5 rad/sec,0.36 sec.
(d) 7 rad/sec, 0.5 sec.
Q.19- A unity feedback system is characterized by an open loop transfer function, . The system is stable for :
(a) K > -1
(b) K > -2
(c) K < -1
(d) K < -2.
Q.20- For the root locus parttern of a system whose forward path transfer function is, , the breakaway point is :
(a) -2.549
(b) -0.784
(c)-1.85
(d) -3.52