| Post Name | JUNIOR INSTRUCTOR (MECHANIC INDUSTRIAL ELECTRONICS) |
|---|---|
| Department | INDUSTRIAL TRAINING |
| Question Paper Code | 097/2014 |
| Date of Test | 9 July 2014 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Trimmer iz a sort of :
Answer
B. Variable capacitor
2
The Inductive reactance 1s:
Answer
D. X, = 2afL
3
Atransformer in which secondary voltage is same as that of the primary is known as:
Answer
A. Isolation transformer
4
Power factor (P.F) is given by :
Answer
D. R/Z
5
In Delta 3 phase system, line voltage is Ephase.
Answer
C. 1
6
The Ripple factor for full wave rectifier is :
Answer
B. 0.48
7
Ina RC circuit at Time constant the voltage achieve ite final maximum
value.
Answer
A. 5T
8
Ina series resonance circuit the net reactance below the resonance frequency will be :
Answer
C. Capacitive
9
The loss that occurs in the core due its reversal of magnetization force is :
Answer
B. Hysteresis loss
10
Ifa 100 Ah battery is used for 5 hours continuously the current supplied by the same in :
Answer
B. 20A
11
A reversed biased PN junction has ————————— capacitance.
Answer
A. Transition
12
One metric Hp is:
Answer
A. 735.5 watts
13
The No. of gates in Silicon controlled switch : '
Answer
D. 2
14
The atomic number of an element is equal to:
Answer
C. The no. of protons
15
The positive temperature coefficient means ————————— with increases in temp.
/
Answer
D. Resistance increases
97/2014 4 A
16
Each solar cell has an open voltage :
Answer
B. 0.57 V
17
- is often known as triggering agent for SCR.
Answer
C. UJT
18
The minimum current at which the relay armature is attracted to open the N/C contact is :
Answer
A. Energizing current
19
One unit of electrical power consumption is :
Answer
B. 1000 Whr
20
The PIV across each diode of half wave rectifier in 3 phase system is equal to
V.(peak).
Answer
C. 1.73
21
A SWG is used to measure :
Answer
A. Diameter of the wire
22
Which of the following circuit can be used as a DC transformer?
Answer
B. Inverter
23
Given a carrier frequency of 100 Khz and modulation frequency of 2Khz the frequencies
present in the AM carrier wave :
Answer
B. 100 Khz, 98 Khz, 102 Khz
24
Which of the following is not a terminal of 555?
Answer
D. Reference voltage
25
The O/P voltage and maximum current of LM723 IC is :
Answer
B. } 2to 37 V and 150 mA
26
Half adder is also known as:
Answer
D. EXOR
27
Class ‘AB’ amplifier conducts during —-----————- off the IP.
Answer
D. Less than full cycle and more than half cycle
28
The oscillator most commonly used in transmitter is :
Answer
C. Crystal oscillator
29
The typical efficiency of an UPS is of the order of :
Answer
C. 90%
30
The hexa decimal equivalent of 1101 0011 1110is:
Answer
A. D3E
31
Operating system is also known as
Answer
C. System software
32
The advantage serial transport compared to parallel transport for data transmission 1s that :
Answer
A. It need only one wire
33
The number of flip flops required to construct mod 10-counter is :
Answer
D. 4
34
Which is not an advantage of Optical fiber?
Answer
D. Low Cost
35
- is not an optical sensor.
Answer
B. Laser diode
36
RTDs can be used for measuring a temperature of
°C.
Answer
A. 500
37
The important advantage of CMOS IC is :
Answer
C. Low power consumption
38
Some typical PLC are :
Answer
C. 1084
39
The active component used in electronic tuning is :
Answer
A. Varactor diode
40
Gain of an non inverting OP amp is :
Answer
B. 1 + Rf/Ri
41
Astable multivibrator is a
circuit.
Answer
A. Free running
42
Ina MOSFET substrate is internally shorted to :
Answer
D. Source
43
The ultra-sonic flaw detector working in the frequency range of :
Answer
A. 0.8 MHz to 2.5 MHz
44
The basic memory element in sequential circuit is :
Answer
C. Flip flop
45
‘lhe ultra-sonic flaw detector working in the frequency range of :
Answer
A. 0.8 MHz to 2.6 MHz
46
Detector is used in:
Answer
D. Receiver only
47
48
Multiplexer is logic which has :
Answer
C. No. of data I/P and only one O/P
49
The important advantage of LCD is:
Answer
B. Low power consumption
50
For the display of digit '3' in a 7 segment display unit, the lit segment are :
Answer
D. a, b, c, d, g
51
ELCB work on the principle of :
Answer
C. Residual current
52
In a induction motor AC is applied to :
Answer
A. Stator
53
A snubber circuit usually consists —
- with the device.
Answer
D. RC series circuit connected in parallel
54
In the oil circuit breaker insulating oil is used for :
Answer
D. Arc extinction
55
The electric of petrol gauge works on the principle of
effect.
Answer
B. Electro magnetic
56
An essential part of a pneumatic system is :
Answer
C. Air receiver
57
Interrupt control in 8085 microprocessor have
- input.
Answer
B. 5
58
In electronic sewing ————————— heating is used.
Answer
B. Dielectric
59
—————____—- is used in induction heating.
Answer
D. Eddy current
60
Inthe SMPS regulator is accompanied by :
Answer
A. Duty eyele control
61
To start an automobile engine ————————— motor is commonly used.
Answer
D. DC series motor
62
The normal value of O/P voltage of servo controlled stabilizer is :
Answer
B. 210-240
63
Thermo couple is formed by joining :
Answer
B. Two dissimilar metal
64
Ina CRO the input signal is applied to : |
Answer
A. Vertical amplifier
65
TRLACs can be considered as a combination of :
Answer
C. TwoSCR
66
Chopper can be used in future electric auto mobile for :
Answer
C. Speed control and Breaking
67
Sampler is used in process of :
Answer
D. Converting analog signal to digital signal
68
The main advantage of PCM over analog modulation is :
Answer
B. Noise immunity
69
Schokley diode has -
- layer and
terminal.
Answer
C. 4,2
70
Most common way of PLC programming :
Answer
A. Ladder Diagram
71
In a PID controller has-
- function.
Answer
A. Proportional, Integral, Derivative
72
The length of dipole antenna is :
Answer
C. 143/f
73
In microprocessor "MVT" Instruction is given in
- addressing.
Answer
C. Immediate
74
Intrinsic stand of ratio of UJT is :
Answer
B. R,/Ro+ Roz
75
Range extension of ammeter requires —
- with milliameter.
Answer
A. A shunt resistor
76
Communication circuit that transmit data in both direction at the same time are operating
in :
Answer
D. Full duplex mode
77
Which of the following memories must be refreshed periodically?
Answer
A. DRAM
78
Which is not an internet browser?
Answer
C. Bing
79
An XOR gate produces an output only when its two inputs are :
Answer
D. Different
80
8051 is -
microcontroller.
Answer
D. Low power CMOS 8 Bit
81
The architect of Modern Cochin harbour :
Answer
B. Robert Bristo
82
Which Indian mountain range has a triangular shape?
Answer
D. Satpura
83
The president of America during First World war :
Answer
D. Woodrow Wilson
84
Malabar goes to the hands of the British after the treaty of :
Answer
A. Sreerangapatanam treaty
85
Correct chronological order of dynasties :
Answer
A. Slave, Khilji, Tuglags, Lodi
86
‘The Malayalam University in Kerala situated in:
Answer
D. Malapuram
87
The irrigation project in kerala which supplies drinking water to Coimbatore city?
Answer
B. Siruvani project
88
The year related with temple entry proclamation :
Answer
D. 1936
89
The Education plan in which “Operation Black Board” is the part :
Answer
C. New Education Policy
90
‘The state where the city of Kanishkapuram situated :
|
Answer
A. Kashmir |
91
The person who was known as the “Father of Indian Nationalism’ :
Answer
B. Dadabai Naoroji
92
The first sculpture city in Kerala :
Answer
D. Kozhikode
A 13 97/2014
93
The Chairman of state re-organaisation committee :
Answer
A. Fazal Ali
94
The person who measures first the circumference of the earth :
Answer
D. Erathosthenes
95
Name the planetary wind :
Answer
C. Westerlies
96
Name the coast line between Goa and Gujarat :
Answer
A. Kokan coast
97
The district where the National Institute of Technology is situated :
Answer
D. Kozhikode
98
The Redha cult temple is the speciality of the architecture of :
Answer
B. Pallavas
99
A Danish settlement in India :
Answer
C. Serampur
100
A freedom fighter from Kerala who has accompanied with Gandhiji in his Dandi March :
Answer
A. Sankarji
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