| Post Name | LECTURER IN CHEMICAL ENGINEERING (POLYTECHNICS) |
|---|---|
| Department | KERALA TECHNICAL EDUCATION |
| Question Paper Code | 024/2015 |
| Date of Test | 5 February 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Who wrote ‘Vismayajanakam’?
Answer
C. Kandathil Varghese Mappila
2
A.K. Gopalan led ‘Pattini jatha’ in the year :
Answer
Question Cancelled
3
The first annual session of SNDP yogam was held at :
|
Answer
D. Aruvippuram
4
On 4% August 2009 the Parliament of India enacted ‘Right to Education Act’ and included in
the Part III of the Indian Constitution. Identify the Article in which the Act is incorporated :
Answer
A. Article 21a
5
| Which of the following Article is described as ‘The heart and soul of the Indian Constitution’
by Dr. B.R.Ambedkar? 3
Answer
B. 32
6
The novel ‘Hungry Tide’ was written by :
Answer
D. Amitav Ghosh
7
Right to property was repealed by which constitutional amendment?
Answer
C. 44
8
_Ezhava Memorial was submitted to which Travancore ruler?
Answer
A. Sreemoolam Tirunal
9
The famous Jesuit missionary who translated Bible and published it with the title
‘vedopadesam’?
:
Answer
B. St. Francis X’avier
10
Who was the owner of the news paper ‘awadeshabhimani’?
Answer
A. Abdul khader Moulavi
11
IfA is a square matrix of third order with determinant 3, Then the determinant of adj A is :
Answer
C. c) 9
12
The coefficient of x* in the expansion of (1+x?) (-x)' is:
Answer
D. -60
13
If K = sin⁴ x + cos⁴ x, then the value of 2K lies between:
Answer
B. 1 and 2
14
The area enclosed within the curve, mod x − mod y = 1 is:
Answer
B. 2 sq units
15
The circum-centre of the triangle with vertices (4,2), (3,3) and (2,2) 18 at the point :
Answer
D. (3,2)
16
The real valued function max|sx,x°) is differentiable at the point :
Answer
D. 2
17
The minimum value of 4x* —4x+14+8sinx is:
Answer
A. -3
18
The integral of ax* +bx* +cx between the limits -7 and 7 is a function of :
Answer
C. b
19
The area enclosed between the curves 3ay = x² and 3ax = y², (a > 0) is:
Answer
B. 3a²
20
The solution of the differential equation xy′ = x + y satisfying y = 1 when x = 1 is:
Answer
C. y = x ln x + x
21
Water absorption for bricks lies between ______ of its dry weight.
Answer
A. 1/4 to 1/7
22
For general RCC works in buildings like slabs, beams, columns etc. use —--—--— grade of |
concrete,
Answer
B. M20
23
The process of curing ensures :
Answer
D. all of the above t
24
A triangular plot of sides 65 m, 55 m and 40 m constitute an area of ——————— hectares.
Answer
C. 0.11
25
Find the level difference between the stations A and D from the following table.
Station BS IS FS
A 2.500
B 1.200
Cc 1.000 1.100 :
D 0.750
Answer
C. 1.650
26
The number of working stroke per minute in case of four stroke IC engine will be equal to:
Answer
A. WN/2
27
An engine working on an air standard Otto cycle has the following particulars. Piston diameter (bore) = 14 cm, Stroke length = 13 cm, clearance volume = 260 cm³. The compression ratio will be:
Answer
D. 8.69
28
Which is the type of gear employed in a vehicle that makes one rear wheel go faster than the
other while rounding a corner?
Answer
B. Differential gear
29
An economizer is fitted with a boiler is to;
Answer
D. Heat the feed water by exhaust flue gases
30
The function of a surge tank in a hydro electric power plant is :
Answer
C. Relieve water hammer pressure in the penstock
31
A search light is rated 200V, 1A. It is to be connected to 230V supply. Find the value of
resistance to be inserted in series?
Answer
B. 300
32
What is the effective resistance of the network consisting of 10 parallel branches each with a
resistance of 50?
Answer
D. 052
24/2015 6 A
33
How many units of energy is consumed by 100W, 230V lamp working continuously for 10
hours?
Answer
B. 1
34
The inductive reactance offered by an RL series circuit having resistance of 102 and
inductance of 1mH is 0.628 Q. What is the supply frequency?
Answer
C. 100 Hz
35
Pipe earthing in an electrical installation is done to :
Answer
A. Decrease the earth resistance
36
What is the value of internal resistance of an ideal voltage source?
Answer
B. Zero
37
Which of the following phenomenon is the working principle of light emitting diodes?
Answer
D. Electroluminescence
38
What type of filtering is performed by a shunt capacitor filter used in association with a full
wave rectifier?
Answer
A. Low pass
39
What is the modulation technique used in GSM cellular standard?
Answer
C. GMSK
40
Which of the following is not an 8-bit microcontroller?
Answer
D. Intel 8086
41
Atagiven T and P, a liquid mixture of benzene and toluene is in equilibrium with its vapour.
‘The available degrees of freedom are :
Answer
C. 2
42
Pure Q, is mixed with air to produce an enriched air containing 50 vol% of O,. The ratio of
moles of air to O, used is :
Answer
A. 1.72
43
100 kg of wet solids are to be dried from 80% to 10% mixture
Answer
A. 78
44
The average molecular weight of air is :
Answer
C. 29
45
For air at 100% saturation, the dry bulb temperature and wet bulb temperature are related as:
Answer
B. Dry bulb = wet bulb
46
During the combustion of fuel gas, if the air/fuel ratio is increased, the adiabate flame
temperature will :
Answer
D. Decrease
47
A gets converted to B according to the reaction A → B. If the conversion of A is 50%, what is the mole fraction of A in the exit stream?
Answer
B. 1/2
48
Which of the following is there in aviation fuel?
Answer
D. Kerosene
49
Acoal containing very high percentage of durain is called ——————— coal.
Answer
B. splint
50
Which of the following is not a product of tar distillation?
Answer
D. None of these
24/2015 4 A
51
Which is the fuel used in fast breeder reactor at Kalpakam?
Answer
Question Cancelled
52
A coal has an ultimate analysis of carbon: 50%, 6% N,, 18% H,, 2%S, O,: 24%. On what
basis this analysis has been given?
Answer
D. Dry mineral matter free basis
53
The critical speed of a ball mill of radius, R which contains ball of radius r is proportional to :
Answer
C. c) (R-ry'?
54
The sphericity of a solid particle of cubical shape is :
(x fa x
A | B _
Answer
A. {=}
Fa if3 Kr
C — D —
55
Calculate the effectiveness of a screen having x, = 0.49, x, =0.94 and x, =0.023. The
answer is ;
Answer
B. 91,d%
56
Power number and Reynolds number is related in a baffled tank as :
Answer
C. Both
57
For a turbine-agitated and baffled tank, the power number, P, varies with Reynolds number,
R, at low R, as:
Answer
D. PR,
58
Sticky materials are transported with the help of:
Answer
B. Screw Conveyor
59
To avoid cavitation, the pressure at the pump inlet must exceed the vapour pressure by a
certain value called :
Answer
C. Net Positive Suction Head
60
The coefficient of velocity, Cᵥ for an orifice is given by:
Answer
B. Cᵥ = √(2x)/(4yH)
61
A bed consists of particles of density 2000 kg/m". If the height of the bed is 1.5 m and its |
porosity is 0.4, the pressure drop required to fluidize the bed is : |
Answer
B. 11.77kPa |
62
Water flows through an orifice of 25 mm diameter situated in a 75 mm pipe at the rate of 300 cm³/s. What will be the difference in level in a water manometer connected across the meter? Given coefficient of discharge Cₑ = 0.61, viscosity of water = 1 mNs/m²:
Answer
A. 5 cm
63
Quick sand isa:
Answer
D. dilatant
64
Diaphragm pumps are used for:
Answer
C. toxic or corrosive
65
Which one of thege is the commonly used final control element?
Answer
D. Pneumatic valve
66
Manometers are used to measure :
Answer
A. low pressure
67
Which one of the following is used for liquid level measurement?
Answer
B. Diaphragm box
68
Proportional Band (PB) lies in the range :
Answer
A. 1
69
Molasses is the starting material for the production of :
Answer
A. alcohol
70
Tinitro toluene is :
Answer
Question Cancelled
71
Solvent used for the extraction of oil : |
Answer
C. Hexane
72
Raw materials for solvay process are :
Answer
A. Salt, limestone and coke or gas
73
Catalyst used in the manufacture of sulphuric acid by contact process is:
Answer
B. V,0;
74
Sizing material is incorporated in paper to :
Answer
D. none of these
75
The process used for the manufacture of ethyl alcohol from molasses :
Answer
C. fermentation
76
Which of the following is an explosive?
Answer
D. all of the above
A il 24/2015
[P.T.0}
77
Chemical name of caustic soda is :
Answer
A. Sodium hydroxide
78
Which of the following is a method for production of phosphoric acid?
E
Answer
C. Electric furnace process
79
Which of the following is not a source of starch?
Answer
D. None of these
80
What is the full form of DDT?
Answer
A. Dichloro dipheny] trichloro ethane
81
Raw material for the manufacture of nylon-66 :
Answer
A. Adipic acid
82
Terylene is:
Answer
C. both
83
Which of the following is a raw material for the production of nitrile rubber?
Answer
C. Both
84
Caprolactum is produced from :
Answer
A. Phenol
85
Prandtl number is the ratio of :
Answer
C. Momentum diffusivity to thermal diffusivity
86
Dankwert's surface renewal theory is given by :
Answer
C. k_L² / D_A
87
In a binary distillation operation, if the feed contains 30 mol % vapour, the slope of the
q line will be :
Answer
B. -2.3
88
In a distillation separation, distillate contains 80% more volatile component. The g-line
intersects the equilibrium curve at (0.3, 0.6). Find the minimum reflux ratio, consuming
Mc.Cabe Thiele method :
*
Answer
A. 0.67
89
NTU is considered as
Answer
D. Measure of difficulty of separation
90
Packed tower operates at : .
Answer
A. Low pressure drop and low hold up
91
A composite wall of a furnace is made of two materials A and B, The thermal conductivity of
A is twice that of B and the thickness of A is half of B, If the temperatures at 2 sides of the
wall are 400 and 1200 K respectively, the temperature drop (in K) across the layer of
material A is :
Answer
C. 160K
92
The heat transfer by radiation from a mild steel surface is to be reduced by reducing the
emissivity of the surface. This can be achieved by :
Answer
Question Cancelled
93
In Sieder ~ Tate correlation, the heat transfer coefficient varies with pipe diameter D as :
1 2
Answer
Question Cancelled
94
For a given heat flow and for the same thickness, the temperature drop across the material
will be maximum for :
Answer
D. Glass-wool
95
Economy of a single effect evaporator is:
Answer
B. < 1
96
Type of feeding used for heat sensitive material in a multiple effect evaporator is :
Answer
A. Forward feed
97
Which one of the following is a secondary method for treating wastewater?
Answer
C. Activated slude process
98
Reagent used for COD determination is :
Answer
C. Potassium dichromate
99
Which of the following is an air pollutant?
Answer
D. All of the above
100
Which of the following is a sludge treatment method?
Answer
C. Incineration
1 comment
Ask a doubt or share a tip.
DELMA JOSEPH
diploma chemical engineering, psc exam which date<span class="ql-cursor"></span>