| Post Name | LECTURER IN TEXTILE TECHNOLOGY (NCA) - TECHNICAL EDUCATION |
|---|---|
| Question Paper Code | 039/2019/OL |
| Category Code | 430/2017 |
| Date of Test | 27 August 2019 |
| Medium of Question | ENGLISH |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
The power consumed by an ac series circuit is maximum when its power factor is
Answer
B. 1
2
The protective measure to avoid electric shock while touching electrical appliances is
Answer
D. Earthing
3
What is the unit of apparent power?
Answer
C. VA
4
In an R-C series circuit, the voltage across each element is 50V. The applied voltage is -----
Answer
B. 70.71v
5
What is the effective resistance of a parallel combination of 2Ω, 3Ω and 6Ω
Answer
A. 1 Ω
6
Choose the correct statement
Answer
B. LED bulbs are more efficient than CFL bulbs in terms of power and life.
7
Which of the following is not a constituent of an electro mechanical relay?
Answer
D. Transformer
8
The 8051 micro controller has a data memory of
Answer
A. 128 byte RAM
9
The modulation used in GSM is
Answer
A. Gaussian Minimum Shift Keying (GMSK)
10
Which of the following e waste component poses a health hazard?
Answer
D. All of the above
11
In internal combustion engine, the total energy losses due to pumping and friction converted into power is termed as
Answer
C. Friction power
12
Which among the following statement is correct?
Answer
A. In four-stroke engines, the cooling and lubrication requirement is lesser than in two-stroke engines.
13
The basic function of clutch is to
Answer
D. control flow of mechanical power within a machine
14
In a thermal (steam) power plant, the feed water is preheated in --------
Answer
B. Economiser
15
In a hydroelectric power plant, the level of water stored in reservoir is known as ------
Answer
C. Headrace
16
A matrix A is said to be singular if
Answer
B. lAl =0
17
Let A = [[1,2,3],[0,5,0],[2,4,3]]. The cofactor is 5 is
Answer
D. -3
18
If Delta₁= [[1,0,0],[2,3,0],[-1,5,-3]] and Delta₂=[[-3,5,-1],[0,3,2],[0,0,1]] , then
Answer
B. Delta₁=Delta₂
19
The coefficient of p²q³ in the expansion of (2p-3q)⁵ is
Answer
A. -1080
20
sin 390 tan 30 + sin 120 is
Answer
C. (2)/√(3)
21
The equation of a straight line making an angle 135° with positive direction of x-axis and cutting an intercept 5 on y axis is
Answer
C. y=5-x
22
lim_(x→∞)(1+x)^(1/x) is
Answer
B. e
23
The sum of two numbers is 2. Find the smallest value possible for the sum of the square of one number and the cube of the other
Answer
A. 1.9354
24
∫ (dx)/((4+x²)^(3/2) is
Answer
C. (x)/(4√(4+x²)) +c
25
The solution of dy/dx=(y)/(x(x+1))
Answer
D. y(x+1)=cx
26
If A is a matrix then A(adj A) is
Answer
C. lAl I
27
Inverse of the matrix A = [[cos θ, -sin θ], [sin θ, cos θ]] is
Answer
A. [[cos θ, sin θ],[-sin θ, cos θ]]
28
The value of x satisfying the following system is 2x - y + 3z = 8; -x + 2y + z = 4; 3x + y - 4z = 0
Answer
B. 2
29
Co-efficient of x² in the series expansion of √(4+x)
Answer
D. (1)/(64)
30
cos t + tan t sin t is
Answer
D. sec t
31
The angle between the lines y=√(3)x+4 and y=(x)/√(3)+2
Answer
C. 30°
32
The points of discontinuity of f(x) = |x| - |x - 1| are
Answer
D. None of the above
33
The equation to tangent to the curve f(x)=(x+2) (2x+1)² at x = -1 is
Answer
C. y=-3x-2
34
∫ ln(x) dx is
Answer
D. x ln(x) -x+c
35
Solution of (1+x²)y¹ = x(1-y) is
Answer
A. y=1+(c)/√(1+x²)
36
What type of levelling is done if all the readings are taken with a single set up of Dumpy Level?
Answer
D. Simple Levelling
37
Which among the following is called fine aggregate?
Answer
A. Aggregates passing through 4.75mm lS sieve
38
Which of the following is called a deep foundation?
Answer
C. Well foundation
39
Which of the following is called as Beam section?
Answer
D. Rolled steel I sections
40
Which instrument is used for setting right angles in a chain survey?
Answer
B. Cross staff
41
Choose correct alternative from the followings:
Answer
A. For cotton fiber, longer the fiber, finer it is
42
The hollow space in cotton is known as:
Answer
A. Lumen
43
With an increase of moisture content, the strength of a Nylon filament
Answer
B. Decreases
44
Which of the following fibers has excellent elastic recovery?
Answer
C. Nylon
45
Which of the following fibres has excellent crease resistant?
Answer
B. Polyster
46
Birefringence of a fibre is the measure of
Answer
C. Orientation
47
The presence of functional groups in a fibre can be best determined by
Answer
A. IR spectroscopy
48
Analysis of fiber structure by means of diffraction of electromagnetic waves is more compatible with x-rays than with ordinary visible light because
Answer
D. Wave lengths are comparable with crystallite sizes of fibre
49
Electromagnetic waves used in NMR spectroscopy is
Answer
B. Radio waves
50
The helix reversal is found in
Answer
D. Cotton
51
If initial modulus and moment of inertia of a fibre are denoted by E and I, respectively, the bending rigidity of the fibre is expressed as
Answer
D. EI
52
Which one of the following statements is wrong?
Answer
B. The degree of polymerization is same for both cotton and viscose
53
Which one of the following statements is correct with respect to a textile fibre?
Answer
A. It is transversely isotropic
54
Which one of the following statements is true?
Answer
D. Wool is 30% crystalline fibre.
55
Water acts as catalyst for the production of
Answer
A. Nylon 6
56
Which of the following fibre properties is not governed by its amorphous content?
Answer
D. Friction
57
Which one of the following is the correct order in a DSC heating plot with increasing temperature?
Answer
A. Glass transition, crystallization, melting
58
Which one of the synthetic filament properties is not controlled by the drawing?
Answer
D. Molecular weight
59
Which one of the following materials has highest strength/weight ratio?
Answer
C. Kevlar
60
Ziegler-Natta catalyst is essential for the production of
Answer
B. Polypropylene
61
If d is the fibre diameter, air-flow rate through a plug of fibres is proportional to
Answer
C. d²
62
For a square cut polyester staple fibre, length uniformity index is
Answer
D. 1
63
INSTRON® tensile tester works onINSTRON^(o.)
Answer
B. CRE principle
64
As the time to beak increases
Answer
A. Yarn strength decreases
65
Most suitable test for parachute fabric is
Answer
B. Bursting strength
66
Three verities of cotton fibres of 4.5, 5 and 4.0 micronaire values are blended in weight proportions of 30%, 20% and 50%, respectively. The average micronaire value of mixing is
Answer
A. 4.32
67
If the front top roller of a ring frame having diameter of 1 inch becomes eccentric, at what wave length of spectrogram do you expect a peak?
Answer
A. 8 cm
68
8 slivers each with a CVm of 2.8% are fed to a draw frame. If the draw frame adds a CVm of 1%, what will be the CVm of ouput sliver?
Answer
C. 1.41%
69
Low strength mechanical properties are strongly correlated with
Answer
D. Fabric handle
70
Which one of the following parameters has no influence on air permeability?
Answer
C. Fabric stiffness
71
What is the GSM (g/m²) of a square jammed plain cloth made from 20 tex cotton yarns of 0.17 mm diameter?
Answer
B. 164
72
Which one of the following statements is false?
Answer
D. The grab strength of a fabric reduces as the fabric width increases.
73
If same yarn is used for both wrap and weft, maximum fabric thickness is
Answer
Question Cancelled
74
Thermal resistance values of fabrics in an assembly are
Answer
C. Additive
75
Shear stress vs. shear strain curve of a fabric shows
Answer
B. Nonlinearity with hysteresis
76
Self-twist spinning is most suitable for
Answer
D. Wool
77
For same count, rotor yarn TM is
Answer
B. 10-15 % greater than ring yarn.
78
In case of Mélange yarn production, with the increase of shade depth
Answer
A. Yarn quality deteriorates
79
In case of air-vortex spinning
Answer
A. All fibres start from the centre of the yarn and run outside.
80
In comparison with the ring spun yarn, air-jet spun yarn is
Answer
A. Weaker, stiffer and harder
81
Feed per nip of comber is around
Answer
B. 6 mm
82
Self-cleaning action in a comber
Answer
A. Increases with batt weight
83
Quality of combing is better in
Answer
B. Backward feed
84
Which machine in the spinning line is termed as necessary evil for producing ring spun yarn?
Answer
D. Speed frame
85
Pressure bar in draw frame is used to
Answer
D. Control the short fibre movement.
86
Yarn tension during winding is proportional to the
Answer
C. Yarn tex
87
A 3.5 crossing drum means there are
Answer
C. 7 turns in a double traverse
88
A loom is weaving the design of 1 up 2 down twill. If the loom is running at 240 rpm, the speed of tappet shaft will be
Answer
C. 80 rpm
89
A Jacquard design is repeating on 20 cm along length and 12 cm along width. If the fabric has 30 ends and 24 picks per cm, the Jacquard capacity is
Answer
C. 360
90
A loom of 500 cm width is running at 800 picks/min. The weft insertion rate of the loom is
Answer
B. 4000 m/min
91
On a Sulzer® projectile loom, the number of projectiles depends on
Answer
C. Loom width
92
Which one of the following phenomena cannot be described by Poisson distribution
Answer
D. Strength of the warp yarn
93
If 1 Km of yarn produces 900 m fabric, the yarn crimp in the fabric is
Answer
C. 11.1%
94
Indigo is a
Answer
A. Vat dye
95
Dyeing of acrylic is carried out by using
Answer
B. Cationic dye
96
Acid dyes are held on fabric by means of
Answer
C. Electrostatic force
97
Sublimation transfer printing is most suitable for
Answer
B. Polyster
98
For printing with reactive dye, most suitable thickener is
Answer
D. Sodium alginate
99
Mercerization of a cotton fabric is carried out by
Answer
C. Sodium hydroxide
100
For a satin weave (warp face)
Answer
B. Ends/cm is greater than picks/cm.
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