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Related with 'DIESEL MECHANIC' | We found Total 311 Question paper ..!

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151.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND OPERATION OF MARINE ENGINES VHSE
14.

18.

16,

17:

18.

19.

20.

21.

In large high power marine engines a cross head is used to connect :
(வி Piston to piston rod (B) Piston rod to connecting rod
(0 Cylinder head to engine frame (D) Connecting rod to crank shaft

The ratio of brake horse power to indicated horse power is called :
(ಗಿ) Volumetric efficiency (B) Thermal efficiency
(C) Power efficiency (D) Mechanical efficiency
.... See more

152.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND OPERATION OF MARINE ENGINES VHSE
39.

41.

42.

48.

44.

Very large diesel engines are started using :
(ಗ) Compressed air (B) Electric starter motor
(0 Hydraulic starter motor (D) Hand eranking

The one way clutch (overrunning clutch) is used in starter motors [5 =
(A) Automatically engauge the starter pinion to flywheel
॥ To disconnect the engine from gearbox before starting
(C) Disengauge flywheel from starter pinion after starting
(D) Disengauge eng.... See more

153.
LECTURER IN CHEMICAL ENGINEERING POLYTECHNICS KERALA TECHNICAL EDUCATION


42,

48,

44.

45.

47.

48.

49,

50.

Pure O, is mixed with air to produce an enriched air containing 50 vol% of 0,. The ratio of
moles of air to O, used is :

A) 1.72 (B) 0.58

© 5 യു 05

100 kg of wet solids are to be dried from 80% to 10% mixture (by weight), The mass of
moisture removed in kg is:

ക്ര 78 (B) 82

(©) 98 D) 56
The average molecular weight.... See more

154.
LABORATORY TECHNICAL ASSISTANT MECHANIICAL SERVICING / AGRO MACHINERY VHSE
27/2015

7.

Maximum : 100 marks
Time : 1 hour and 16 minutes

Now a days the type of gear box used in automobiles is :
(A) Synchromesh gear box (൫ Sliding mesh gear box
(C) Constant mesh gear box (D) Planetary gear box

In an ice plant the refrigerant generally used is :

{A) Carbon Dioxide (B) Ammonia
(0 Air (D) Freon
In which cycle petrol engine works :
(A) Diesel cycle (छ) Carnot cycle
(0 Ottocycle (D) Duel combustion cy.... See more

155.
LABORATORY TECHNICAL ASSISTANT MECHANIICAL SERVICING / AGRO MACHINERY VHSE
34,

37.

40.

The tillage system which is most suited for area of high rain fall :

(ಹ) Rotary strip tillage system (B) Minimum tillage system

(©) Till plant system (D} Ridge planting system
The diameter of a engine is called :

(4) Bore (B) Btroke

(© TDC (D) BDC
The power developed in an engine cylinder is :

(A) Indicated horse power (B) Brake horse power

(©) Frictional horse power (D) No power is develope.... See more

156.
ASSISTANT MOTOR VEHICLES INSPECTOR MOTOR VEHICLES


35.

36.

37.

38,

39.

40.

41.

42.

One liter of water occupies a volume of :
(ಯ) 100 em? (B) 100000 cm?
(0 1000 cm? - (D) 500 cm?

The ratio of strength of 80114 to hollow shaft, both having outside diameter D and hollow
having inside diameter D/2 in torsion is :

(4) 1⁄2 യു 6
(0) 8 യ 14

The bending moment is maximum on a section where the shearing force :
(ல c.... See more

157.
TRADESMAN ELECTROPLATING TECHNICAL EDUCATION


=

84.

85,

81.

88,

39.

40.

has the lower strength.

Qut of the following, the jeint produced by
(ಸಿ) Soldering (೫) Welding
{C) Brazing - (D)Puvetting

Heatlngnfanm'ahelm\'1‘t1=mPltingpuinLinpl‘es'encenfexces.‘snfal‘rl.‘!ca“ed.'
(A)Calcm'au'un (18) Smelting
(0) Roasting (D)) Sublimaticn

Psychrometer determines the :
(ಗೆ) Humidity of gases (B) Moisture content.... See more

158.
PUMP OPERATOR GROUND WATER
39.

40.

41.

42,

43.

44.

45.

46.

Distributor shaft supported by :
(4) Ball bearing (B) Shell bearing
(C) Bush bearing ` (D) Needle bearing

To set ignition timing fly wheel TDC mark is conicide with :
(ക) Timing back 11815 (൫) Mark on Cam shaft gear
(C). Mark on Crank shaft gear (D) Fly wheel housing pointer

The two-stroke cycle engine has ports in the :
(5) Piston (B) Cylinder wallsSee more

159.
OPERATOR WATER AUTHORITY


34.

35.

36.

87.

88.

89.

40.

41.

42:

The angle between king pin centre line and vertical in the plane of wheel is called :
(ಹ) Steering axis inclination (B) King pin inclination

(C) Castor (D) Camber

Wear on tyre is more on one side is due to :
(¢) Incorrect camber angle (B) Low tyre pressure

(¢) High tyre pressure (D) Sudden acceleration

Useful power obtaine.... See more

160.
OPERATOR WATER AUTHORITY


ہے

55.

56.

58.

For a given VA rating cross-section area of core will be less if the following metal is used :

കു
©

Dynamo sheet

Normal iron sheet

Which of the following is not used for etching?

@)
(0)

Ferric Chloride

Alkaline Ammonia

യ) High alloy sheet
(D) Stalloy sheet

(B) Cupric Chloride
(D) Carbon Tetra Chloride

An AC or DC electric.... See more

161.
FOREMAN GOVT INSTRUMENT WORKSHOP KERALA SMALL INDUSTRIES DEVELOPMENT CORPORATION LTD SIDCO
24. The device, which holds and locates a work piece and guides and controls one or
more cutting tools, is known as :
(A) Lathe (B) Template
(C) Fixture യ Jig
25. Critical temperature of a gas is the temperature :
(4) above which it cannot be liquefied
(B) at which its liquefaction just starts
(©) at which the intermolecular gap is reduced to zero
(D) at which its liquefaction is complete 5
26. The process which takes place below recrystallisation temperatu.... See more

162.
TECHNICIAN GR II REFRIGERATION MECHANIC KCMMF LTD
8.

10.

11.

12.

13.

14.

15.

“ASHRAE" is :

(ಯ) American Society of Heating Refrigerating and Air Conditioning Engineers
{B) Aseociation of States of Heating Refrigerating and Air Conditioning Engineers
(C) American Society Having Refrigerating and Air Conditioning Engineers

(D) American Society of Harmful Refrigeration and Air Conditioning in Earth

Refrigeration is the process of
(A) Removing<.... See more

163.
WORK ASSISTANT NCA KSRTC
10.

11.

12,

13.

14.

15.

16.

Which of the following is not a precision measuring instrument?

" (A) Outside micrometer (B) Dial indicator
(C) Vernier height gauge (D) Universal surface gauge
A round rod which does not have a head, and has external threads at both ends is called :
(4) Stud (3) Bolt
(0 Nut (D) Screw

Snips are used for :
(A) Cutting away thick layer एव metal (B) Cutting sheet meta.... See more

164.
WORK ASSISTANT NCA KSRTC
17,

18,

19.

20.

21

22.

24.

25.

The number of main journals on a six-cylinder engine's crankshaft will be :
(A) Eitherdor6 (B) Eitherbor7
(¢) Either6or8 (D) Either 6 12

In a diesel engine, the fuel gets ignited by :
(^) Fuel injector (8) Electrie spark
(C) Heater plug (D) Heat of compressed air

Force x Distance =
(ಗಿ) Power (B) Torque
(C) Work (D) Energy

Which process gi.... See more

165.
WORK ASSISTANT NCA KSRTC
26.

27,

೨8.

29.

30.

81.

32:

33.

The positive crankease ventilation aystem helps :
(ಡಿ) To redirect the blow by gasés in the crankease to inlet manifold
(0) To reduce the atmospheric 101000. caused by the engines
(€C) To prevent oil dilution and sludge formation
(D) भाम the above

Which of the following is not a function of fuel injection system in the diesel engines?
(A) To atomise .... See more

166.
LINEMAN GR I REVENUE


49.

50.

52.

83.

54:

55.

56.

The 8.1 unit of pressure is :
(ಗ) 788081 (8) वपा
(0 Newton (D) None of these

The pressure in an engine cylinder is less than the atmospherie pressure when the engine is
working —————————— stoke.

(ಗ) Suction (B) Compression
() Exhaust (D) None of these

A fully charged lead acid battery has specific gravity of :
(&) 1.609.... See more

167.
LINEMAN GR I REVENUE


57.

88.

59.

62.

63.

64.

65.

Which one of the following suspension springs also acts as a means for locating the axle?

(8) Leaf (B) Helical

(0) Tortion bar (D) Rubber
Thermal efficiency of 2-stroke engine is ———————— 4-stroke engine.

(ക Less than (B) Greater than

(C) Equal to (D) None of these

The device used to measure the clearance between the valve and ta.... See more

168.
INSTRUCTOR IN ENGINEERING /DRAFTSMAN GR I SR TECHNICAL EDN
7.

10.

11.

12.

18.

14.

A second order system would be critically damped when damping ratio is :
(ക) Less than 1 (2) ಔಂಜಯ 1
(0 Greater than 1 (D) Tends to infinity

The order of values of thermal efficiency of Otto, Diesel and Dual cycle when they have equal
compression ratio and heat rejection is :

ಯ ಗ್ರ ಗ್ನು ಗ್ನು (वि) ಗ್ಗ, ಎಗ್ಗು

© ಗ್ರ < ‏لم.... See more

169.
CONFIDENTIAL ASSISTANT GR II SR FOR SC/ST VARIOUS
08.

69.

70.

வ

72:

23

74.

75.

76,

How many Shift lock keys are in a typewriter ?

കമ (0) 3 © 4 0

Select the correct groups of left side heading when typing Balance sheet, Profit and Loss
Account and Income and Expenditure Account respectively :

(A} Liabilities, Losses, Expenditure (8) Assets, Profit, Income

(೮) ‏كاعد‎ ۳۲۵۱۷ Expenditure (D) Liabilities, Prof.... See more

170.
OVERSEER KSCDC LTD
rfifi.

68.

69.

70.

If 60% of the flux is linked with a seconc

coil of
turns, then mutual inducta

Tne self 1 clance of a

conl of

(ക) 1 (8) अत (9 15mH (0) 128 mH

RMS value of current is i=10+45 cos (628 t + 60°) :

[ക] ‏دق‎ (8) 15 (C) 10.6A (D) 10A

The form factor of dec supply voltage is alway

[ക] zero (8) 0.5 (C) पा (D) 1017111६

An RL circuit has Z=(6 +.... See more

171.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF AUTOMOBILES VHSE
199/2015

5:

Name of the Engine which have bore is equal to stroke length :
(A) Wankel Engine (8) Radial Engine
(C) Square Engine (12) Hybrid Engine

Write down correct equation :
(കു 1HP=BHP +FHP (B) FHP=BHP+IHP
(€} BHP=IHP+FHP (D) 1 भाः पा

Which of the following Cycle is used in petrol engine ?
{A) Diesel Cyde (1) Otto Cycle
(0) Carnot Cycle (10) Brayton Cycle

An engine has swept volume of 600 cc. If compression.... See more

172.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF AUTOMOBILES VHSE
10. Which of the following is used to avoid over cooling in the cooling system of the engine ?
(வி ‏ضرق سمي‎ (8) Thermostat
(ப Expansion reservoir (12) Radiator
11. Inwhich of the following lubrication system lubricant oil is mixed with fuel ?
(^) Splash system (18) Pressure system (C) Dry sump (13) Petroil system
12. Which is the following number is used to indicate ignition quality of diesel fuel ?
(ಗಿ) Cetane (98) Octane (C}) Random (D) None of thes.... See more

173.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF AUTOMOBILES VHSE
37.

38.

39.

40.

41.

42.

43.

44.

45.

16,

The type of wheel which cannot be used with च tubeless tyre :
(ಗಿ) Disc wheel (8) Alloy wheel (C) Wire wheel (D) None of these

The heart of the hydraulic brake system is :
(வ) Wheel cylinder (18) Master cylinder (C) Adjuster (D) Brake pedal

The process of removing air from hydraulic system 15 2
(५५) Brake adjustment (ए) Brak.... See more

174.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF AUTOMOBILES VHSE
65.

66. The cross section of connecting rod is :
(வ) I section (8) L section )0 D section (D) T section
67. Cam shaft is not required in :
(3) 4 stroke petrol engine (8) 4 stroke diesel engine
(೮) Two stroke engine (D) None of these
68. To reduce the noise, engine exhaust is connected to the
14) Muifler (B) Catalytic converter
(೮) Supercharger (12) Turbocharger
69, The lubrication system used in sports car is :
14) Petroil system (B) Pressure sy.... See more

175.
JUNIOR INSTRUCTOR MECHANIC MOTOR VEHICLE INDUSTRIAL TRAINING


ಸ್ಟ

63.

65.

67,

68,

69,

Octane number of petrol is generally ranges from :
(ക) 80-90 (४) 5-6 (0 0-70 (D) 100 - 110

Loud popping in carburetor is due to :
(A) வாணி ண்‌ - fuel ratio (B) Blocked air cleaner

(0) Back firing (12) Loose mounting of carburetor

In which of the following engine have more thermal efficiency ?
(ಗಿ) Petrol (8) Diesel (C) Gas (D) Electric
See more

176.
LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF TWO WHEELERS AND THREE WHEELERS VHSE
230/2015

Maximum : 100 marks

Time : 1 hour and 15 minutes

1. The petrol engine is working on :
(A) Constant Pressure Cycle (18) Constant Volume Cycle
(@) Carnot Cycle (D) None of the above

2. The main difference in operation of petrol engine from diesel engine is that :
(ಗಿ) draws air fuel mixture during suction
(ए) draws only air during suction
(C) inlet valve closes during compression
(D) exhaust valve opens during exhaust strok.... See more

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