| Post Name | Tradesman (Electroplating) |
|---|---|
| Department | Technical Education (Pkd District) |
| Question Paper Code | 093/2015 |
| Date of Test | 19 May 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
A chemical reaction will occur spontaneously at constant pressure and temperature, if the
free energy is:
Answer
C. —-VE .
2
Entropy is a measure of the —-——————- of a system.
Answer
B. Disorder
3
Fundamental principle of refrigeration is based on the ———————- law of thermodynamics.
Answer
A. Second F
4
Heating of water under atmospheric pressure is an —-—-—-—— process.
Answer
C. Isobaric
5
Molten soap mass is transported by
Answer
C. Gear
6
Most commonly used joint in the underground pipe line is the : ;
Answer
A. Sleeve joint
7
The fluid property due to which, mercury does not wet the glass :
Answer
B. Surface tension
8
Check valves are used :
Answer
B. For unidirectional flow
9
The ratio of inertial forces to elastic forces is called the —---——— number.
Answer
C. Mach
10
Which of the following has the minimum absorptivity?
Answer
A. Aluminium foils ‘
11
Mode of heat transfer involved in the cooling of air cooled internal combustion engine is :
Answer
D. Natural convection
12
Which of the following has maximum thermal conductivity? 3
Answer
B. Iron
13
Open pan evaporators are preferred to be used, when the solution to be concentrated is :
Answer
C. Highly viscous
14
Which of the following is most suitable for cold viscous feed?
Answer
B. Backward feed
'
15
Heat transfer occurs by natural convection because change in temperature causes difference in :
Answer
B. Density
16
Separation of two or more components of a liquid solution cannot be achieved by :
Answer
A. Absorption
17
Which of the following provides maximum contact surface for a liquid-vapour system?
Answer
C. - Packed tower
18
Which is the separation technique used for desalination of sea water? :
Answer
A. Reverse osmosis
19
Rate of adsorption increases as the :
Answer
C. Temperature decreases
20
The number of gram moles of solute per kilogram of solvent is called :
Answer
D. Molality
21
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the
difference in their : oti
Answer
D. Solubility '
22
Use of packed towers for distillation is generally limited to the :
Answer
A. Small sizes
23
Calcium Ammonium Nitrate
Answer
A. Acomplex fertilizer
24
Ammonia synthesis gas is produced from natural gas by :
Answer
D. Steam reforming
25
Catalyst used in Haber’s process for ammonia production is :
Answer
B. Reduced iron oxide
26
‘Triple superphosphate is made by reacting phosphate rock with ——————— acid.
Answer
B. Phosphoric
27
Urea is produced from carbon dioxide and :
Answer
C. Ammonia : :
28
A solution with reasonably permanent pH is called a/an ——————— solution.
Answer
B. Buffer
29
Isotonic solutions must have the same :
Answer
D. Molar concentration
30
With increase in temperature, the surface tension of water :
Answer
A. Decreases
31
oly Vinyl Chloride (PVC) is
Answer
A. ——~———- material.
32
Out of the following, the joint produced by —------—— has the lower strength.
Answer
A. Soldering
33
Heating of an ore below its melting point in presence of excess of air is called :
Answer
C. Roasting
34
Psychrometer determines the :
Answer
A. Humidity of gases
35
What is the absorptivity of a black body?
Answer
A. 1
36
Which of the following has the highest flash point of all?
Answer
D. Furnace oil
37
Octane number of gasoline is a measure of its :
Answer
A. Knocking tendency
38
Flash point of an oil is determined by the :
Answer
B. Pensky Martens apparatus
‘
39
Glycerin is a by- product of the —--———— industry.
Answer
C. Soap
40
CaO is called:
_
Answer
B. Quick lime
41
A device used to remove condensate from steam heated equipment is :
Answer
D. Traps
42
Centistokes is unit of : ‘
Answer
B. Kinematic viscosity
43
Joule- Thomson co-efficient for an ideal gas is :
Answer
C. 0 5
44
Which is an example of reciprocating pump?
Answer
D. Diaphragm pump
45
Manometers are used to measure :
Answer
C. Pressure difference
46
Which of the following enzymes helps breaking down of starch into maltose?
Answer
A. Amylase’
47
Ina dry cell, the cathode used is :
Answer
D. Graphite
48
The activation energy of a reaction can be lowered by :
Answer
D. Adding a catalyst
49
Sodium salts of fatty acids are known as:
Answer
C. Soaps .
50
Alkyl halides on treatment with aqueous KOH gives :
Answer
B. Alcohols
51
Chloroform is used as :
Answer
D. Anaesthetic
52
Formalin is an aqueous solution of :
Answer
C. Formaldehyde
53
Which of the following has highest solubility in water?
Answer
A. Acetic acid
54
Aniline is purified by :
Answer
B. Steam distillation :
55
The oxidation number of Sulphur in SO: is : ;
Answer
B. +4
56
The most radioactive element is :
Answer
B. Radium
57
The basic principle used in hydrogen bomb is : y
Answer
C. Nuclear fusion
58
The process of vulcanization makes rubber :
Answer
D. Hard
A 9 93/2015
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59
Which of the following is an addition polymer?
Answer
D. Polyethylene
60
Biochemical reactions which can take place in the absence of oxygen are called :
Answer
C. Anaerobic
61
Turbidity of water is an indication of the presence of :
Answer
A. Suspended inorganic matter
62
Which of the following is not categorized as a” mechanical Operation”?
5
Answer
D. Humidification
63
, Invar used in thermocouples is an alloy of nickel and :
Answer
A. Iron
64
A good lubricant should have high :
Answer
A. Viscosity index
65
When vaporization takes place directly at the heating surface, it is called?
Answer
C. Nueleate boiling
66
The number of kilogram of water vapourized per kilogram of steam fed to the evaporator is
defined as :
Answer
D. Economy
67
Pascal is the unit for:
;
Answer
B. Pressure
68
Radio carbon dating technique is used to estimate the age of :
Answer
D. Fossils
69
One nanometer is equal to :
Answer
C. 10°
70
Which of the following contains the least percentage of carbon?
Answer
B. Wrought iron
71
The material used for coating the welding electrode is termed as :
Answer
A. Flux
72
Chlorine acts as a bleaching agent only in the presence of :
Answer
C. Moisture
73
Which is the only metal that exist in liquid state at room temperature?
Answer
D. Mercury
74
The refrigerant Freon-12 is chemically :
Answer
A. CCLE,
75
Heat flux is the time rate of heat transfer per unit :
Answer
C. Area
76
The most efficient cooling tower out of the following is :
Answer
D. Induced draft
A 11 93/2015
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77
Milk is dried usually ina —————-. dryer.
Answer
B. Spray
78
Diaphragm pumps are used to transport :
Answer
D. Slurries
79
Cavitation in a centrifugal pump can be avoided by keeping the :
|
Answer
A. Inlet pressure high
80
An oil is converted into fat by its : ;
Answer
D. Hydrogenation
81
The present Chairperson of UPSC : é
Answer
A. Rajani Razdan
82
The crops which are sown in the rainy season?
Answer
C. Kharif crops
83
"Bharatipura”, authored by :
Answer
B. U.R.Ananthamurthy
84
In which place the Black soil can be seen?
Answer
D. Chittoor
85
The members of Rajyasabha are elected for :
Answer
B. Six years
86
The world ‘s largest indoor stadium has been opened in which country :
Answer
C. Philippines
87
World Ozone Day observed on:
Answer
A. 16 September
88
The chairman of the governing body of Kudumbasree mission :
Answer
B. Minister of LSG
89
Name inaugural train that runs between Katra-Udhampur (25km) rail line in Jammu and
Kashmir :
Answer
D. Shree Shakti Express
90
Dongas are a particular type of house can be seen at :
Answer
D. Kashmir
91
The first temple police station situated in Kerala :
Answer
C. Guruvayoor
92
Venganoor is the birth place of:
Answer
B. Ayyankali
93
In which portrait was depicted in Indian 500 rupee?
Answer
B. Dandi march
94
The Kesari, the newspaper published by :
Answer
D. B.G.Tilak
95
Prathyaksha Raksha Daiva Sabha [PRDS] was founded by :
Answer
C. Poikayil Kumara Gurudevan ;
96
The volunteer captain of the Guruvayoor Satyagraha was :
Answer
B. A.K.Gopalan
97
The Civil Disobedience Movement was started by Gandhiji on :
Answer
C. 12 March 1930
98
Self Employment provided to the educated youth in India through :
Answer
D. PMRY °
99
The Lahore Declaration in February 1999 was signed by :
Answer
A. Vajpai—Nawas Sheriff
100
Who was the father of immunology?
*
Answer
C. Edward Jenner
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