| Post Name | ELECTRICIAN |
|---|---|
| Department | HEALTH SERVICES/MEDICAL EDUCATION SERVICE/ARCHAEOLOGY |
| Question Paper Code | 047/2017 |
| Date of Test | 3 May 2017 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 87 |
1
ColpittÂ’s oscillator is a
Answer
B. Sinusoidal oscillator
2
According to FaradayÂ’s law, induced emf is directly proportional to
Answer
B. Rate of change of flux linkages
3
Differential compound generator is a/an
Answer
A. Self excited generator
6
Which type of DC compound generator is used when the load is very far away from the generator ?
Answer
C. Over compounded
7
Pitch of lap winding
Answer
B. YB – YF
8
Transformers are rated in
Answer
A. KVA
9
In a transformer, I1/ I2 =
Answer
B. E2/E1
10
Turns ratio of isolation or one-to-one transformer is
Answer
C. 1
11
Hysteresis loss, Wh =
Answer
A. K h m . 6 a x f w a t t s
12
Class 0.1 instruments are used as
Answer
C. Precision measuring instruments
13
Which is an absolute instrument ?
Answer
D. Tangent Galvanometer
14
If the pointer of measuring instrument moves quickly to its final deflected position, it is
Answer
C. Critically damped
16
The ratio is Z R
Answer
A. Reciprocal of power factor
17
PIC is the part of
Answer
C. Digital energymeter
18
Tong-tester is used to measure
Answer
D. Alternating current
19
Collector current, IC of BJT =
Answer
B. IE – IB
20
Capacitive reactance is
Answer
D. Inversely proportional to frequency
21
Current gain of common base amplifier is
Answer
A. Always less than 1
22
Frequency of rotor current of induction motor is
Answer
B. Slip Ă— frequency of stator current
23
Which of the following motor is not self starting ?
Answer
C. Single phase induction motor
25
Which is wrong about the speed control of dc shunt motor by field control method ?
Answer
C. Speed cannot be varied above normal speed
26
Which is constant speed motor ?
Answer
A. Synchronous motor
27
Unit of mmf
Answer
B. Ampere turns
28
Negative plate of lead acid cell is
Answer
D. Spongy lead
31
Permeance is the reciprocal of
Answer
C. Reluctance
33
The Ah efficiency of lead acid cell is normally between
Answer
A. 90 – 95%
34
Insulation resistance can be measured using
Answer
C. Meggar
35
There is no control spring in
Answer
B. Induction energymeter
36
Standard form of an alternating voltage, e =
Answer
B. Em Sin 2 ft
37
A sine wave has an angular frequency of 100 radian/sec. Its frequency is
Answer
D. 50 Hz
39
Stray losses are
Answer
B. Magnetic and mechanical losses
40
Transformer gives maximum efficiency, when
Answer
D. Copper loss = Iron loss
42
A transformer consists of 1000 primary turns and 1600 secondary turns. What is the secondary induced emf if primary voltage is 250 V ?
Answer
B. 400 V
44
Which of the following has negative temperature coefficient of resistance ?
Answer
A. Silicon
45
Secondary of a CT must be connected to an ammeter or must be short circuited in order to avoid
Answer
D. All of the above
46
Rotor speed of 3 phase, 4 pole, 50 Hz induction motor
Answer
A. 1440 RPM
47
Barrier potential of silicon at room temperature of 25°C is
Answer
C. 0.7 V
48
Power rating of low power transistors are
Answer
C. Less than 2 watts
49
Convert decimal 9 to binary
Answer
D. 1001
50
Boolean expression for OR gate is
Answer
B. Y = A + B
51
Which connection is best suited for 3 phase, 4 wire service ?
Answer
C. Delta-Star
52
The scale range marked on the dial of the meggar is
Answer
B. Infinity to zero ohm
53
Fusing factor is
Answer
A. Ratio between minimum fusing current to current rating
54
1500 RPM = ____________ RPS
Answer
D. 25
55
1 Kg wt = ___________ Newton
Answer
C. 9.8
56
The direction of force produced on a current carrying conductor placed in a magnetic field can be determined by
Answer
C. FlemingÂ’s Left Hand Rule
57
Differential compound generators are suitable for
Answer
B. Arc welding
58
When a BJT operates in cut off
Answer
A. VCE = VCC
60
Efficiency of class A amplifier is
Answer
B. Less than 50%
61
Mechanical equivalent of heat, J is
Answer
B. 4186 Joules/K Cal
62
1 KWh = _________ Joules
Answer
C. 36 105
63
1 Joule/second is equal to
Answer
A. 1 Watt
64
1 Coulomb of charge is defined as that charge which when placed in vacuum from equal and similar charge, repels it with a force of ________ N
Answer
A. 9 109
65
Dielectric strength of air in KV/mm
Answer
C. 3.2
66
Capacitor that stores a charge of 0.005 C at 10 volts has a capacitance of __________ Farad
Answer
B. 0.0005
67
Unit of magnetic field strength (H) is
Answer
A. Newton/Weber
68
MMF/Reluctance is equal to
Answer
C. Flux
70
____________ is used as electrolyte in Nickel-Iron battery
Answer
D. KOH
71
Average emf of Edison cell is
Answer
D. 1.2 V/cell
72
When three capacitors C1, C2 and C3 are connected in parallel, total capacitance will be
Answer
C. C = C1 + C2 + C3
73
____________ammeter will be used to measure alternating current only
Answer
B. Induction
74
Time period of 100 Hz alternating quantity is
Answer
D. 0.01 seconds
75
Average value Form factor =
Answer
D. rms value
76
The critical value of loop gain of an oscillator, K Av is
Answer
A. Equal to 1
78
LSI integrated circuits consists of ______________ transistors
Answer
Question Cancelled
79
Hexadecimal (23)16 = ____________
Answer
C. (35)10
80
Base of a transistor is _____________doped
Answer
B. Very lightly
81
Which National Leader of India is known as ‘Prince of Workers’ ?
Answer
D. Gopal Krishna Ghokale
82
Who is known as ‘Akbar of British India’ ?
Answer
A. Lord Wellesley
83
Who was the first British Viceroy to visit Kerala ?
Answer
C. Lord Curzon
84
Which is the most abundant metal in the EarthÂ’s crust ?
Answer
B. Aluminium
85
Who among the following is associated with the discovery of rings of Saturn ?
Answer
C. Galileo
86
How many delegates had attended the first session of Indian National Congress ?
Answer
B. 72
87
India changed over to the decimal system of coinage in
Answer
A. April 1957
88
Which country has the largest coastline ?
Answer
D. Canada
89
The National Anthem was first sung in the year ?
Answer
B. 1911
90
Where is the Railway Staff College located ?
Answer
D. Vadodara
91
Who was the author of the book ‘Story of an Escape’ ?
Answer
A. Surjith Singh Bernala
92
IndiaÂ’s first Post Office Passport Seva Kendra (POPSK) has been inaugurated in which city ?
Answer
C. Mysuru
93
The World Hindi Day is observed on which date ?
Answer
A. January 10
94
Which Indian State has became the first to introduce cashless system for Public distributing system of food grains ?
Answer
B. Gujarat
95
Which of the following State will host the 2022 National Games ?
Answer
D. Meghalaya
96
Who compiled ‘The Travancore State Manual’ ?
Answer
C. V. Nagam Aiya
97
Who founded the ‘Vidya Poshini Sabha’ ?
Answer
A. Sahodharan Ayyappan
98
Who was called the ‘Simhala Simham’ ?
Answer
D. C. Kesavan
99
Name the leader related to the ‘Muthukulam Speech’ of 1947
Answer
B. Mannthu Padmanabhan
100
In which year Sree Narayana Guru held an all religions conference at Advaithasramam Aluva ?
Answer
C. 1924
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