| Post Name | JUNIOR INSTRUCTOR (PUMP OPERATOR) -INDUSTRIAL TRAINING . |
|---|---|
| Question Paper Code | 061/2019 |
| Date of Test | 21 November 2019 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Second law of thermodynamics defines
Answer
D. Entropy
2
In a throttling process
Answer
C. Temperature remains constant
3
Which of the following cycles has the highest efficiency?
Answer
Question Cancelled
4
The value of universal gas constant (Ru) is
Answer
A. 8314 J/kgK
5
For a reversible adiabatic process, change in entropy is
Answer
C. Zero
6
An isothermal process is governed by
Answer
B. Boyle's law
7
Which of the following processes is not associated with Diesel cycle?
Answer
D. Isothermal
8
Morse test is conducted only on
Answer
C. Multi-cylinder engine
9
Which of the following is the extensive property of the system?
Answer
A. Volume
10
In a system, neither mass nor energy is allowed to cross the boundary of the system
which is known as
Answer
B. Isolated system
11
Unit of refrigeration is expressed in
Answer
C. Ton
12
Which part of the vapour compression refrigeration cycle produces the refrigeration
effect?
Answer
C. Evaporator
13
The wet bulb temperature is a measure of
Answer
B. Absolute humidity
14
Brine is always used as a secondary refrigerant in
Answer
D. Ice plants
15
Mass of water vapour present in 1 kg of dry air is known as
Answer
C. Humidity ratio
16
Thermal conductivity is expressed as
Answer
A. W/mK
17
Stefan Boltzmann law is applicable for heat transfer by
Answer
C. Radiation
18
If a body transmits all the radiations incident on it, then it is known as a
Answer
D. Transparent body
19
Overall coefficient of heat transfer is used in case of
Answer
D. Conduction & convection
20
The heat of Sun reaches Earth according to
Answer
C. Radiation
21
Fluid is a substance which offers no resistance to change of
Answer
C. Shape
22
Surface tension has the unit of
Answer
B. N/m
23
The ratio of absolute viscosity to mass density is known as
Answer
A. Kinematic viscosity
24
The centre of gravity of the volume of the liquid displaced by an immersed body is
called
Answer
B. Centre of buoyancy
25
Manometer is used to measure
Answer
D. Pressure of the fluid
26
Bernoulli's equation deals with the law of conservation of
Answer
C. Energy
27
Maximum efficiency of transmission of power through a pipe is
Answer
D. 66.6%
28
Centrifugal pump is started with its delivery valve
Answer
A. Kept fully closed
29
For small discharge at high pressure, following pump is preferred
Answer
D. Reciprocating
30
Series operation of a centrifugal pump results in
Answer
A. High head
31
The pump to be used for pumping highly viscous fluids belongs to
Answer
C. Screw pump
32
Slip is a term associated with
Answer
C. Reciprocating pump
33
Cavitation will take place if the pressure of a flowing fluid at any point is
Answer
Question Cancelled
34
Air vessel in reciprocating pump is used to
Answer
Question Cancelled
35
Jet pumps are often used in process industry for their
Answer
C. Easy maintenance
36
Which pump would you select for pumping sewage?
Answer
B. Open impeller centrifugal pump
37
Pelton wheel turbine is
Answer
D. Tangential flow impule turbine
38
A draft tube is used with
Answer
C. Reaction turbine
39
A material capable of absorbing large amount of energy before fracture is known as
Answer
B. Toughness
40
The ratio of direct stress to volumetric strain is known as
Answer
A. Bulk modulus
41
When a close coiled spring is subjected to axial load, its axial deflection is directly
proportional to
Answer
D. Mean radius of the coil of the spring
42
The ratio of limiting friction to normal reaction between two bodies
Answer
C. Coefficient of friction
43
Moment of inertia of an area is always least with respect to
Answer
D. Centroidal axis
44
A cantilever beam of length 'I' carries a point load 'w' at the free end. The shear force
diagram seems to be in the shape as
Answer
B. A rectangle
45
Strength of a beam is directly proportional to its
Answer
Question Cancelled
46
Hoop stress in thin walled cylinder is
Answer
C. Circumferential tensile stress
47
If d is the rivet diameter and t the plate thickness, Unwin's formula is:
Answer
B. d = 6√t
48
A long column fails by
Answer
D. Buckling
49
Cam size depends upon
Answer
A. Base circle
50
The ratio of number of teeth and pitch circle diameter is called
Answer
C. Diametral pitch
51
The quality of a governor can be judged by its
Answer
D. None of the above
52
In a flat belt drive, the belt is subjected to maximum tension 'T' and a centrifugal
tension Tc. For maximum power transmission
Answer
C. T = 3Tc
53
Maximum efficiency of a Screw jack is a function of
Answer
A. Angle of friction
54
Pure iron is the structure of
Answer
A. Ferrite
55
The crystal structure of a gamma iron is
Answer
B. FCC
56
Cast iron is characterised by minimum of following percentage of carbon
Answer
Question Cancelled
57
Balls for ball bearings are made of
Answer
D. Carbon-chrome steel
58
Which of the following is used for bearing liner?
Answer
Question Cancelled
59
The product of Coupola furnace is called
Answer
B. Cast iron
60
The material used for coating the electrode is called
Answer
C. Flux
61
Grey cast iron is best welded by
Answer
D. Oxy-acetylene Welding
62
The following welding process uses consumable electrode
Answer
B. MIG Welding
63
Which of the following is not a heat treatment process?
Answer
C. Parkerizing
64
Slag inclusion in casting is a
Answer
A. Surface defect
65
Seamless tubes are made by
Answer
Question Cancelled
66
Lathe bed is usually made of
Answer
C. Cast iron
67
Crater wear takes place in a single point cutting tool at
Answer
C. Face
68
The arbor of the milling machine is used to hold
Answer
A. Cutting tool
69
Basic tool in work study is
Answer
D. Stop watch
70
What does symbol imply in work study?
Answer
B. Inspection
71
Gantt charts are used for
Answer
B. Production schedule
72
Acceptance sampling is widely used in
Answer
C. Mass production
73
CPM is a technique which depends on
Answer
C. Activity
74
The probability distribution of activity times in PERT follows the following
distribution:
Answer
B. Beta
75
Simplex method is used for
Answer
A. Linear programming
76
Father of time study is
Answer
B. F.W. Taylor
77
ABC analysis deals with which of the following?
Answer
A. Controlling inventory costs money
78
Bar charts are suitable for
Answer
C. Minor projects
79
Lead screw with half nuts in a lathe free to rotate in both directions has
Answer
D. ACME threads
80
From the following, which term is connected with shaping machine?
Answer
B. Quick return mechanism
81
Heat and work are
Answer
B. Path functions
82
A perfect gas at 27°C is heated at constant pressure till its volume is doubled. The
final temperature is
Answer
C. 327°C
83
In an isothermal process, the internal energy of gas molecules
Answer
D. Remains constant
12 61/2019–A
84
The operation of forcing additional air under pressure in the engine cylinder is
known as
Answer
A. Supercharging
85
Ignition quality of petrol is expressed by
Answer
A. Octane number
86
A two-stroke engine is usually identified by
Answer
D. Absence of valves
87
Gas turbine works on
Answer
B. Brayton cycle
88
Critical temperature is the temperature above which
Answer
B. A gas will never liquefy
89
Presence of moisture in a refrigerant affects the working of
Answer
C. Expansion valve
90
Density of water is maximum at
Answer
D. 4°C
91
The stress-strain relation of the Newtonian fluid is
Answer
A. Linear
92
Power required to drive a centrifugal pump is proportional to
Answer
C. N3
93
Indicator diagram of reciprocating pump is a graph between
Answer
B. Pressure in cylinder vs swept volume
94
Impulse turbine is used for
Answer
A. High head
95
The property of a material which allows it to be drawn into small section is called
Answer
C. Ductility
96
Gear box of a car utilises
Answer
D. Compound train
97
Spring index is
Answer
D. Ratio of coil diameter to wire diameter
14 61/2019–A
98
Pearlite is a combination of
Answer
B. Ferrite and cementite
99
The most commonly used flame in gas welding is
Answer
A. Neutral
100
Work study is done with the help of
Answer
Question Cancelled
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