| Post Name | ASSISTANT ENGINEER (MECHANICAL) |
|---|---|
| Department | TRAVANCORE TITANIUM PRODUCTS LTD/STATE FARMING CORPORATION OF KERALA LTD |
| Question Paper Code | 147/2015 |
| Date of Test | 6 August 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Acycle consists of two isothermal and two isentropic processes is known as:
Answer
D. ‘Carnot cycle |
2
1൩ an isometric projection the radius of a sphere it is equal to:
Answer
B. R
3
The function of steam nozzle is to convert :
Answer
A. heat-energy steam into kinetic energy
4
Dryness fraction is the ratio of :
Answer
C. mass of dry steam to the mass of dry steam and mass of water vapour in
suspension
5
If the thermal efficiency of Carnot heat engine is 50 percent, then coefficient of performance
of a refrigerator working within the same temperature limit would be :
Answer
A. 1
6
During throttling process :
Answer
D. enthalpy does not change
7
Which one of the following parameter is significant to ascertain chemical equilibrium of a
system?
Answer
C. Gibb’s function
8
The percentage of carbon in cast iron usually varies between :
Answer
D. 2.5 to 3.5%
9
Martensite is a supersaturated solution of carbon in : |
Answer
A. Alpha iron
10
Dislocation in materials is a———————__ defect.
Answer
B. Line
11
The head over a 90° V-notch increases from 0.15 to 0.3 m. The ratio of the new discharge to
the original discharge 1s : .
Answer
D. 5.657
12
A floating body will remain in stable equilibrium so long as :
Answer
B. the metacentre M hes above the centre of gravity
13
The nominal thickness of boundary layer represents the distance from the surface to a point
where :
Answer
B. velocity is 99 percent of its asymptotic limit
14
A pitot-tube is an instrument for measuring :
Answer
C. velocity of flow
15
The specific speed Ns = (N√Q)/H³⁄⁴ for a double suction pump is to be evaluated. The discharge would be taken:
Answer
A. half the actual discharge
16
If two pumps identical in all respects and each capable of delivering a discharge Q against a
head H are connected in series, the resulting discharge is :
Answer
C. Q against a head 2H
17
The power obtained from an impulse turbine is proportional to the number of nozzles used.
A pelton turbine with six nozzles has a specific speed of 8.1. The specific speed per nozzle is :
Answer
C. 3.3
18
During idling of a petrol engine requires :
Answer
D. rich mixture |
19
In investment casting the pattern :
,
Answer
A. is made of wax |
20
Inthe Orsat apparatus KOH solution is used to absorb : ല്
Answer
B. carbon dioxide
21
For the same compression ratio :
Answer
A. thermal efficiency of otto cycle is greater than that of diesel cycle
22
The knocking in SI engine gets reduced :
Answer
B. by retarding the spark advance
23
If two pumps identical in all respects and each capable of delivering a discharge Q against a
head H are connected in series, the resulting discharge is :
Answer
A. 2Q against a head 2H
24
Work input to the air compressor with n as index of compression:
Answer
A. increases with increase in value of n
25
1 tonne of refrigeration is equivalent to:
Answer
B. 210kJ/min
26
The thermal conductivity is expressed as:
Answer
A. W/mK
27
In SI engines which one of the following is the correct order of the fuels with increasing
detonation tendency :
Answer
D. Aromatics, Napthenes, Olefins, Paraffins
28
The Nusselt number in natural convection is a function of Prandtl number and :
Answer
D. Grashoff number
29
Which of the following properties of a refrigerant is undesirable?
Answer
D. high boiling point —
30
The emissivity of a body is equal to absorptivity when the body remains in thermal
equilibrium. This law refers to as:
Answer
C. Kirchoffs law
31
Ina vapour compression cycle the condition of refrigerant is saturated liquid :
Answer
C. after passing through the condenser
32
Which of the following processes is generally used in winter air conditioning? |
Answer
D. . heating and humidification
33
Upto critical radius of insulation the heat flow :
Answer
B. increases
34
As relative humidity decreases the dew point will be —————————- wet bulb temperature.
Answer
C. lower than
35
A two stroke engine has a speed of 750 rpm. A four stroke engine having an identical cylinder
size running at 1500 rpm. The theoretical output of the two stroke engine will be :
Answer
C. the same as that of the four stroke engine
36
The main reason for adopting the axial flow compressors instead of centrifugal compressors
in aircraft turbine is that :
|
Answer
B. the frontal area of axial flow compressor is considerably less |
37
Morse test measures the indicated power of : റ
Answer
A. SI engine
38
Which one of the following is a lower pair? .
റ
Answer
C. shaft in a bearing
39
Coriolis component of acceleration is present exists whenever a point moves along a path that
has:
Answer
D. rotational motion
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40
The speed of an engine is seen to fluctuate Continuously above and below mean speed. The
governor is said to be :
Answer
B. hunting
41
Which motor will be suitable for traction?
Answer
A. DC series motor
42
When two spur gears having involute profiles on their tooth engage the line of action is
tangential to : ,
Answer
D. base circle
43
The speed of an engine is seen to fluctuate Continuously above and below mean speed. The
governor is said to be :
Answer
D. unstable
Which motor will be suitable for traction?
44
A simply supported beam of span 10 m carrying a load of 500 N at the midspan will have a
maximum bending moment of :
Answer
B. 1250 Nm
45
The diameter of shaft is increased from 50 mm to 100 mm all other conditions remaining
unchanged. How many times the torque carrying capacity increases?
Answer
C. 8 times |
46
Ifa compression coil spring of stiffness 10 N/m is cut into two equal parts and the used in
parallel the equivalent spring stiffness will be :
Answer
C. 40 N/m
47
48
The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the -
aeroplane takes turn to left. The effect of gyroscopic couple on the aeroplane will be :
Answer
A. to raise the nose and dip the tail _
49
Ina locomotive the ratio of the connecting rod length to crank radius is kept large in order to:
.
Answer
B. minimise the effect of secondary force 3
50
In order to facilitate the starting of locomotive in any position, the crank of a locomotive with
two cylinders are placed :
Answer
B. 90°
51
The ratio of maximum displacement of the forced vibration to the deflection due to static
force is known as:
Answer
D. magnification factor |
52
A mild steel rod having 50 mm diameter and 500 mm length is to be turned on a lathe. .
Determine the machining lime to reduce the rod to 45 mm in one pass when cutting speed is
30 m/min and a feed of 0.7 mm/rev is used :
Answer
C. 3.74 min
53
For producing more accurate holes, the sequence of operations to be followed is :
Answer
A. centering, drilling, boring, reaming
54
The main purpose of chaplets used in foundary practice are :
Answer
C. to support the core
55
In oxy-acetylene gas welding the volume of oxygen required per unit volume of acetylene :
Answer
A. 1
56
Tempering of hardened steel is done to increase its : ;
Answer
C. ductility
57
The angle which is found between the face of the cutting tool and the normal to the machined
surface at the cutting edge is called :
Answer
A. rake angle
58
The hardness with which the bond holds the cutting points or abrasives in place defined by
the term:
Answer
D. grade
59
Which of the following is not a part of Capstan lathe?
Answer
B. tailstock
60
The gears manufactured on generating principle in :
Answer
A. : hobbing
61
Quick returning mechanism is used in :
Answer
C. slotting machine
62
During ultrasonic machining the metal removal is achieved by :
Answer
C. hammering action of abrasive particles
63
According to Indian standard specifications the total number of designated grades of
fundamental tolerances are :
Answer
A. 18
64
In a metric thread designated by M12 x 1.5 specify that the thread has :
Answer
B. nominal diameter 12 mm and pitch 1.5
65
Inasteam engine the joint to be used for connecting the piston rod and cross-head is :
Answer
B. cotter joint
66
Creep in a belt drive is due to :
Answer
C. differential elongation of belt due to difference in tension on two sides of the
pulley
67
Annual demand for a product costing Rs. 100 is 400. Ordering cost per order is Rs. 100 and
carrying cost is Rs. 2 per unit per year. The economic lot size is then : |
Answer
A. 200
68
CPM and PERT techniques are used for : ] ie
Answer
C. executing a new project
69
ABC analysis in materials management is a method of classifying the inventories based on :
Answer
A. the value of annual usage item
70
Break even point is the point where : ]
Answer
D. total cost and sales revenue lines intersect |
71
Thecore product model required for any CAD/CAM system :
Answer
D. Geometric model
' 7൭, Group technology is suitable for production of : 3
72
Group technology is suitable for production of :
Answer
C. medium range variety and medium range quantity
73
In FMS the tools are identified by means of :
Answer
B. bar code
74
Just in time manufacturing philosophy emphasizes on :
Answer
D. inventory
75
A joint sector undertaking :
Answer
B. is jointly owned by private parties and government
76
Answer
B. Poisson distribution
77
Cellular manufacturing system is designed on the basis of :
Answer
C. GT
78
In linear programming the shadow prices are :
Answer
Question Cancelled
79
A feeler gauge is used to check :
Answer
D. thickness of a clearance
80
The relation between tool life (T) and cutting speed (V) is expressed as:
Answer
D. VTⁿ = C
81
Which amendment of the constitution lowering the voting age from 21 to 18?
Answer
D. 61
82
The power to create new state or alter the boundaries of existing state vested upon
തന്ന.
;
Answer
C. Parliament
83
The constitution prescribe the age qualification for being appointed as Governor of the state :
Answer
B. 35 years
84
Which article of the constitution provides the right to protection against arrest and
sentention? ;
“
Answer
D. Article 22 |
85
The chief legal advicer of the President of India :
Answer
C. Attorney General
86
Sarkaria commission related to :
|
Answer
D. Centre State relations
87
In 1975 the National Emergency Declaration signed by :
Answer
D. Fakhruddin Ali Ahmed
88
Modern states are called “Professional States” called by:
Answer
D. Frederic C. Mosher
89
Write the oddone: .
_.
Answer
Question Cancelled
90
The youngest person who became the Chief Minister of the State :
Answer
Question Cancelled
91
Operation Protective Edge is associated with :
Answer
B. Israel
92
Bachpan Bachchavo Andolan is founded by :
Answer
C. Kailesh Satyarthi
93
Malayali poet known as 'Singing Sword of Kerala' is :
Answer
A. T.S. Tirumumpu
94
The ruler of Travancore who abolished 'Shucheendram Kaimukku:
Answer
A. Swati Tirunal
95
'Jeevitha Samaram' is the autobiography of:
Answer
B. C. Kesavan
96
Who was the internal Minister of Kerala in 1957?
Answer
A. EMS Namboothirippadu
97
The real name of Vagvadananta was :
Answer
B. Kunhikannan
98
The editor of the journal 'Mitavadi' was :
Answer
C. C. Krishnan
99
Who founded 'Kochi Pulaya Mahasabha"?
Answer
A. K.P. Karuppan
100
'Aruvippuram Pratishta' was conducted in the year :
Answer
Question Cancelled
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