| Post Name | LECTURER IN ELECTRONICS AND INSTRUMENTATION - POLY TECHNICS |
|---|---|
| Department | TECHNICAL EDUCATION |
| Question Paper Code | 069/2016 |
| Date of Test | 20 May 2016 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The first printing in Malayalam was done by :
Answer
Question Cancelled
2
Who issued orders allowing the Channar women to wear jacket?
Answer
Question Cancelled
3
Which is the first travelogue in Malayalam :
Answer
D. Varthamana Pusthakam
4
Kerala Sahitya Charitram was written by :
Answer
B. Ullur
5
The first Keralite who had participated in the activities of the Congress was:
Answer
A. G.P. Pillai
6
Who organized the literary association called Vidyaposhini?
Answer
D. K. Ayyappan
7
The Sheetankan Tullal was the art form of :
Answer
C. Pulayas
8
Who was the first national leader to articulate the idea ‘Constituent Assembly’?
Answer
B. Jawaharlal Nebru
9
Who was the founder of the Kochi Pulaya Mahasabha?
Answer
D. K.P. Karuppan
A $
[P.T.0,]
10
took the initiative of spreading the English education in the area of Malabar.
Answer
C. c) BEM
11
For any square matrix A,
Answer
A. —A’ isa:
12
If sin A = cos A, 0° < A < 90°, then A equal to:
Answer
C. 45°
13
The cofactor of the element 8 in the matrix |9 8 7] is:
4 66
Answer
D. -6
14
The coefficient of x® in the expansion of (x +3) is:
Answer
C. 1512
15
The derivative of log /x w.r.txis:
1 1
A Boe
Answer
B. Ox
1 ]
16
The equation of the line parallel to the line 3x − 4y + 2 = 0 and passing though the point (−2, 3) is:
Answer
C. 3x − 4y + 18 = 0
17
If limₓ→₃ (xⁿ − 3ⁿ)/(x − 3) = 108, the value of n is:
Answer
D. 4
18
The area of the region bounded by the parabola y = x² + 2, x-axis, x = 0 and x = 3:
Answer
D. 15
19
If sin A =,0"
Answer
B. 0
20
) 5 Te
2
The value of [xax 18 :
-]
3 -2
A) — =
Answer
A. 3
21
A storey of house below ground level is called :
Answer
B. Cellar
22
The zero of the graduated circle in a prismatic compass is located at the :
Answer
C. South end
23
Hooking in steel reinforcement is always done :
Answer
C. towards compression side
24
Combained correction for curvature and refraction is to be applied when :
Answer
D. station point is more than 100 meters away from instrument
25
The bricks or stones which are laid perpendicular to face or direction of wall :
Answer
A. is headers
26
In a four stroke diesel engine, one cycle is completed in :
Answer
D. 720° of crank rotation
27
Which one is most suitable in differential mechanism?
Answer
B. Epicyclic gear train
28
Compression ratio is the ratio of :
Answer
C. Sum of Stroke volume and Clearance volume to Clearance volume
29
Draft tube is used in:
Answer
A. Hydroelectric power plant
30
Rear axle is placed in between :
Answer
C. Differential and wheel
31
A 100 W Bulb, a 40W Fluorescent lamp and a 60W Fan in a room operates for an average
duration of 5 hours in a day. What will be the total energy consumed during the month of
April 2016?
Answer
B. 30 kwh
32
An alternating current is represented by +=141sin314¢. What is the rms value of this |
current?
Answer
C. 100A
33
Which one of the following bare copper conductor is best suited for earthing in a small
residential installation?
Answer
Question Cancelled
34
One kwh is equal to:
Answer
A. 860 keal
35
Resistance of a wire is 50Q. If the length of that wire is doubled, keeping the volume same,
what will be the new resistance?
Answer
D. 20090
36
The ripple frequency of the output wave form of bridge rectifier with a 60 Hz sine wave is:
Answer
B. 120 Hz
37
In microcontrollers which registers are used as pointers, to point the internal memory
address :;
Answer
Question Cancelled
38
What are the health hazards which can be caused by E waste, if it is not properly treated or
disposed off?
Answer
D. All of the above
39
LEDs are made out of :
Answer
C. Gallium Arsenide
40
All CDMA based technologies 2G and 3G have handovers.
Answer
A. Soft handover
41
Which of the following material is not used to make strain gauges?
Answer
C. Bronze
42
Which of the following is an inductance variable type transducer?
Answer
A. LVDT
43
Thermocouple works on the principle of :
Answer
A. Seebeck effect
44
Which of the following is not a mode of operation of piezoelectric transducer?
Answer
D. Elastic
45
Change in the resistance caused by strain is AR, the resistance of the undeformed gauge is
R, and ¢ is the strain. Then the gauge factor is -
AR/R, e AR
Answer
A. F
46
A Remote Terminal Unit (RTU) in a telemetry system is used for :
Answer
B. Converting the output of the sensor to digital data and transmit to the base
station
47
The radio range of a telemetry system can be augmented by :
Answer
D. All of the above
48
Which of the following statements is not applicable to land line telemetry system?
Answer
D. Distortions in transmission lines do not affect the performance of the telemetry
system
49
A force balance current telemetering system .
(i) Make use of a portion of the output current which is feedback to the input to
oppose the motion of the input variable
(ij) Shows good linearity
(iu) Have better accuracy as smaller motions are required
Answer
C. @, Gi) and (iii) are true
50
Which of the following is not a possible cause for optical fiber loss?
Answer
C. Stepped index operation
51
Light traveling in an optical fiber follows which of the following principle? |
Answer
C. Snells law
52
The term critical angle describes : |
Answer
C. The point at which light has gone from refractive mode to the reflective mode
53
Which of the following is not an instrument recommended by International Practical
Temperature Scale (IPT'S-90) for assigning values to seventeen phase equilibrium states of
pure substances’
Answer
D. Quartz crystal thermometer
54
In electromagnetic radiation spectrum, the wavelength range for thermal radiation is :
Answer
Question Cancelled
55
Which of the following thermistors are suitable in measurement of temperature in cryogenic
range?
Answer
B. Iron-Oxide based thermistors
56
Which of the following is a typical range of liquid level measurement for a float type level
measuring system?
|
Answer
A. 10cm—-20m
57
A simple pressure gauge is attached to the bottom of the tank. If P is the indicated pressure
p is the density of the liquid and h is the liquid level. Then the relationship among these can
be expressed as :
h A
Answer
C. h==
58
A pressure of 1 atmosphere is equal to:
Answer
D. All of the above
59
A pressure of 1mm of Hg is equal to:
Answer
A. 1333.22 swbar
60
Which of the following is not an elastic type pressure measurement system?
Answer
A. Ring balance manometer
61
The ratio of the full scale flow to the minimum flow that can he measured within the stated
accuracy of a flow measuring device is known as:
Answer
Question Cancelled
62
A hot wire type flow meter is:
Answer
C. Usable in steady as well as unsteady flow of liquid and gases
63
The reciprocal of the viscosity is called :
Answer
C. Fluidity
64
Psychrometer is used to measure :
Answer
A. Humidity
65
Given a plant which cannot be altered by the designer, the disturbance variable refers to a
variable :
Answer
B. That influences the plant hut cannot be manipulated
66
The deviation of the transient period of control, which starts at the beginning of the control
process and terminates when the controlled variable approximately reaches its prescribed
value, will be refered to as:
Answer
C. Settling time
67
In proportional mode feedback control, increased loop gain :
Answer
D. All of the above
68
Which of the following is TRUE for an OPAMP? |
Answer
C. Very high input resistance
69
If R_F is the resistance connected in the feedback path and R₁ is a series resistance connected between inverting terminal and source of an OPAMP, then the voltage gain of the OPAMP inverting amplifier is :
Answer
B. −R_F/R₁
70
Ina typical instrumentation amplifier that uses 3 OPAMPs :
Answer
A. OPAMPs connected to the inputs are voltage followers and the OPAMP connected
to the output is a differential amplifier
71
72
Which of the following actuators converts energy formed by vacuum or compressed air at
high pressure into linear or rotatory motion :
Answer
C. Pneumatic
73
Which of the following is not a requirement for a caseade control system?
Answer
D. The inner loop is slower than the outer loop
74
The value of the learning rate parameter in a Multi-Layer Feed Forward Neural Network
(MLFFNN) ranges between :
Answer
A. 0-1
75
ASCADA system performs ;
(i) Data acquisition |
(un) Network data communication
(i) Data presentation and control ;
Answer
D. (i) (ii) and (iii)
76
Which of the following controller exhibit integral wind up when overdriven?
Answer
B. Integral mode feedback controller
77
The temperature at which the water vapor in a sample of air at constant barometric pressure
condenses into liquid water at the same rate at which it evaporates is called :
Answer
B. Dew point
78
Rack and pinion gear train is an example of :
Answer
B. Rotatory-to-translatory motion conversion
79
Which of the following belt drives provide the best combination of traction, speed of
movement, load of the bearings and long service life ?
Answer
C. V belts
80
Which of the following is not an essential characteristics of robot?
Answer
B. Human friendly
81
Which of the following is TRUE for a robot?
(ij) All robots have some mechanical construction
(ii) All robots are autonomous
(ii) Robots have electrical components which power and control machinery
(iv) All robot contain some level of computer programming
Answer
B. (i), (iii) and (iv)
82
Linear system obeys:
Answer
A. Super position theorem
83
For an LT! system, the convolution of the input to the system with its impulse response
gives :
Answer
B. ‘The output of the system
84
The damping ratio is strictly less than 1 for a system. Then the system is:
Answer
A. Under damped
85
The Routh-Hurwitz criterion is a mathematical test that is necessary and sufficient condition
for :
Answer
B. Stability of LT] system
86
Which of the following is not a mode of operation of SCR?
Answer
D. Reverse conduction mode
87
The minimum current that must pass the circuit in order for the SCR to remain in the ON
state is :
Answer
C. Holding current
88
A switching device that converts fixed DC input to a variable DC output voltage directly is :
Answer
A. Chopper
89
A heart rate slower than 60 beats per minute is said to be :
Answer
B. Bradyeardiac
90
Delivering therapeutic dose of electrical energy to the heart with a device is called :
Answer
B. Defibrillation
91
Which of the following is used to diagnose epilepsy and sleep disorders?
Answer
B. EEG
92
Which of the following is/are advantages of CT over traditional 2D medical radiography?
Answer
D. All of the above
93
The device or implants that are completely non-magnetic, non electrically conductive, non
RF reactive are called :
Answer
A. MR-safe
94
Ultrasound devices operates with frequencies in the range :
Answer
Question Cancelled
95
Which of the following technique is used in chemistry to provide a fingerprint by which
molecules can be identified?
Answer
C. Raman spectroscopy
96
Which of the following relates the attenuation of light to the properties of the material
through which the light is traveling?
Answer
C. Beer's law
97
Solutions with a pH less than 7 are :
Answer
D. Acidic
98
Lasers differ from other sources of light in such a way that the light emitted by laser is :
Answer
Question Cancelled
99
Frequency doubted diode pumped solid state lasers are used to make :
Answer
D. Bright green laser pointers
100
Ruby used in ruby laser is made off :
Answer
B. Chromium doped corundum
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