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1001.
ASSISTANT ENGINEER DIRECT/BY TRANSFER KERALA WATER AUTHORITY
21.

22,

23.

24,

25.

26.

21.

28.

Which method of analysis of water distribution system is most suitable for long and narrow
pipe system?

{A) Circle method ര Hardy Cross Method

(C) Equivalent Pipe method ` (D) Electrical Analysis method

For disinfecting water supply, it is required to treat 500,000 litres of daily supply with
0.5 ppm of chlorine. If the disinfectant is available in the form.... See more

1002.
ASSISTANT ENGINEER DIRECT/BY TRANSFER KERALA WATER AUTHORITY
96.

87.

58,

59.

61.

62.

63,

8. 17-106 12802701007 15 ೧೧711001001 10 ೩ 108801 10 13088076 07 77688076 inside. If mercury 15
the working fluid of manometer, the height difference between two columns of the
manometer measured is 24 cm, the pressure inside the vessel ‏سا‎ kPais :

കര 91.59 (8) 1

(0) 3.1 0) 184

One kilogram of water is heated from 20°C to 90°C. If the specific heat of wa.... See more

1003.
WORKS MANAGER STATE WATER TRANSPORT
42,

43.

44.

46.

47.

48.

49.

50.

The entropy change in a reversible adiabatic process is ‏؛‎
‎(A) മണ @) <0
)© <0 M =0

The efficiency of a Carnot cycle operating between the temperature limits of 327° and 27° is :
(ക) 85% (ए) 60%
(ட 50% ൬) 70%

One ton of refrigeration is equal to : _
(^) ‏٦37‎ (೫) 3.81%
)0 47 று ‏٢٣‎

Which of the followin.... See more

1004.
WORKS MANAGER STATE WATER TRANSPORT
59. Which rule is applicable for the design of light and sound signals?

(A) MARPOL ಕ ന SOLAS
(8 0016 | (0) ILLC

60. Which among the following is an item in FFA?
(^) Lifebuoy (0) Bilge and fire pump
(C) Embarkation ladder (D) Catwalk

61. 17 80 ೩1057778107, the regulator controls output voltage by :
(A) Sine wave voltage regulation ' (18) 8066 regulation
(09 Output current regulation (2) Field current regulation

65. The number of windin.... See more

1005.
CHARGEMAN MECHANICAL KERALA MINERALS AND METALS LTD
78.

77.

78.

79.

80,

81.

The work saved by fitting an air vessel in a yeciproeating pump 15 :
(ಯ). 89.2% (13). 84.8%
© 48.59 (೧). ೨8.9%

11/0101 070 18 1101 2111 0188/50 0071800017

(^) भलत एनी ) Young's modulua
(C) Modulus of rigidity ‏(ظ)‎ Bulk modulus
The force of friction acts in a direction ————— to the direction of motion of object.
(ಯ) க (3) Downwards
(0 Perpe.... See more

1006.
LECTURER IN AUTOMOBILE ENGINEERING POLYTECHNICS TECHNICAL EDUCATION


94.

95.

96.

97.

98.

99.

100.

The frequency of voltage developed in alternator depends upon :
(5) Number of poles and rotational speed
(8) Rotational speed
(C) Number of poles, rotational speed and type of winding
(D) Number of poles

The most commonly used cranking motor drive is :
(4) Barrel type (B) Bendix drive
(¢) Friction clutch drive (D) Over running clutch

The vapor lock pro.... See more

1007.
REFRIGERATION MECHANIC UIP HEALTH SERVICES
24,

25.

26.

27.

29.

80.

31.

32.

Convert from CFC 12 to HFC 134 A the compressor displacement will be :

smaller
slightly larger

(ಗೆ)
(0)

The type of condenser used in water cooler :
(ಗಿ) natural draft
(C) evaporative

Pump down the system for :
(A) more cooling effect
(©) gascharging

Purging is done :
(A) after gas charging
(0)

befor.... See more

1008.
VOCATIONAL INSTRUCTOR IN REFRIGERATION AND AIR CONDITIONING VHSE
090/2016

Maximum : 100 marks

Time : 1 hour and 15 minutes

1. A fan may be considered as a pump, because it :
(മ) looks like most other kind of pumps (18) മില fluids, like other pumps
(0) rotates (D) all of these

‰. If Nis the fan speed, then power of a fan is directly proportional to
A N ® N
© N யா

3. For rectangular ducts, the aspect ratio is equal to:
(A) sum of longer and shorter sides (B) difference of longer an.... See more

1009.
VOCATIONAL INSTRUCTOR IN REFRIGERATION AND AIR CONDITIONING VHSE
32.

38.

34.

38.

87.

Which of the following statements is not true?
(5) The coefficient of performance ല്‌ refrigerator 1s generally greater than one

18) The coefficient of performance of a heat pump equals the reciprocal of thermal
efficiency of an engine working with in the same temperature limits

(C) The horse power per ton of refrigeration equals 4.75 times the coefficient of
performance

(D) The refriger.... See more

1010.
OVERSEER /DRAFTSMAN MECHANICAL GR II PWD/IRRIGATION
34,

35.

36,

87.

39.

40.

41.

In Foundry, which sand is used for making cores :

(A) Oil sand (8) Greensand

(C) Loam sand (D) Parting sand
Which tool is used for repairing and finishing the mould surface after the pattern is
withdrawn?

(ಯ) Lifter (೫) Slick

(C) Swab (D) Riddle

Which taper is provided in the hollow end of tail stock bores in a centre lathe?

(ಯ) Morse tape.... See more

1011.
STAFF NURSE GR II HEALTH SERVICES/MEDICAL EDUCATION
84.

85.

86.

87.

88.

91.

92,

Hearing loss associated with aging is known as :
(A) Menier’s disease (B) Otosclerosis
(C) Labrinthitis (D) Presbycosis

An example of proton pump inhibitor :
(A) Cotrimoxazole (B) Pandaprazole
(0) Flucanazole (D) Mebandazole

Therapeutic blood level of lithium is :
(ക 30 to 160 mgllitre (B) 13 to 20 mg/litre
(C) 0.8to 1.2 meg/litre (D) 2.0 ‏ما‎ 4.0 meq/lit.... See more

1012.
VOCATIONAL TEACHER MAINTENANCE AND REPAIRS OF AUTOMOBILES KVHSE
18.

19.

20.

21.

22,

23.

24.

25.

If the diameter of a centrifugal pump mmpeller is doubled keeping the discharge and speed
constant, then the head needs to be reduced by :

(A) 16 times (ए) 4 times (ಲ) 2times (D) B times

A parabolic cam is 50 named because its <

(A) Profile is parabolic

(B) Follower displacement vs time plot is parabolic
(©) ‏مالما‎ velocity vs time plo.... See more

1013.
TECHNICAL SUPERVISOR KERALA ARTISANS DEVT CORPORATION LTD
60.

61.

62.

64.

65.

66.

67,

In a reciprocating pump the function of air vessel is :
(8) To get more discharge (3) To maintain continuous flow
(¢) To avoid priming (D) To obtain high head

Yener diode iz always connected in :

(ಗಿ) Forward bias (B) Reverse bias
(C) Any of above (D) None
Cut in voltage in Germanium is :
(ಯ) 02V B 07V
© 17 യ 0.02 ४
For high frequency application wh.... See more

1014.
LABORATORY TECHNICAL ASSISTANT MECHANIICAL SERVICING / AGRO MACHINERY VHSE
17.

18.

19.

21.

Complete the series :

Voltage : Volt , Current : Ampere, Resistance :

(A) 00% (8) Tesla
(©) Newton (0) ` पष्प
Parboiling : CFTRI, Storage structure : Kothari, Deshelling :
(4) Under runner disk sheller (B) Horizontal rice whitening machine
(C) Knap sack sprayer (D) Rasp bar cylinder
is the removal ஸீ hulls and bran from paddy grain to produce polished rice :
(മ) Deshelling (8) Parboiling<.... See more

1015.
LABORATORY TECHNICAL ASSISTANT MECHANIICAL SERVICING / AGRO MACHINERY VHSE


2

81.

53.

87,

The manufacturer of fuel injection pump :

കര 100 (B) HMT
(C) HAL () BHEL
When the vehicle is climbing up the hill track the gear box suplies?
(ക Low torque (B) Not torque
(C) Higher torque (D) Any of them
For cutting external thread on bars which tool is used :
(ക) Taps (B) Reamer
(C) Dies (D) Drills
A propeller shaft connects :
(ಹ) Engine with clutch (8) Clutch with gear box
(.... See more

1016.
LABORATORY TECHNICAL ASSISTANT MECHANIICAL SERVICING / AGRO MACHINERY VHSE


59. The included angle of centre punch is ;
(A) 90 degree (B) ‏20ھ‎ degree
(0) 120 degree (D) 60 degree
60, Which is not a part of clutch system?
(ಯ) Sun gear (B) Pressure plate
(C) Clutch plate (D) Fly wheel
61. 68: 00% 15 installed between :
(ಯ) Engine and fly wheel (B) Fly wheel and clutch
(C) Clutch and differential (D) Clutch and propeller shaft
62. Which 18 not a plant protecting machinery?
(A) Hand compression sprayer (B) Centre .... See more

1017.
LABORATORY TECHNICAL ASSISTANT AGRICULTRURE PLANT PROTECTION VHSE


52.

58.

54.

85.

൫8.

57.

58,

89.

" 60.

The constituent of cheshunt compound 15 :
ക്ര 0580, ‏مه‎ 0 (7) CuS0; and ammonium carbonate
(09) CuS0jand sodium carbonate (M) (0504 87 slaked lime

Fusarium Pallidoroseum is an important entomopathogen of :
(ക rice stem borer (B) coreid bug

(द) cowpea aphid (1)) red palm weevil

The ability of the seeds to germin.... See more

1018.
MECHANICAL ENGINEERING
78/2018 (78665 : 6)

imum : 200 marks

Time : 1% hours

PARTI
Answer ALL questions. Answer in one word or a sentence.

Questions 1 to 80 carry 4 marks each.

Which one of the following cast irons consists of carbon in rosette form?
(ഭു White cast iron (b) Gray eastiron
(¢) Malleable cast iron (d) Nodular മേട iron

The specific speed of a centrifugal pump depends on the
(ख) Speed and discharge (४) Discharge and power d.... See more

1019.
ASSISTANT MOTOR VEHICLES INSPECTOR MOTOR VEHICLES


78. A.C. Mechanical pump is employed in :
(4) परल aystem (B) Automatie transmission system
(C) Air conditioning (D) Power steering
76. Pulsation of clutch pedal is due to :
(A) Loose Rivets
(B) Misalignment of engine and transmission
(C) Worn out clutch facing
(D) Incorrect link_age adjustment
77. Car can stop in gear by using :
(ಗ) Vacuum clutch (B) Cone clutch
(C) Multi plate clutech (D) Fluid flywheel
78. Torque transfer at an ang.... See more

1020.
DEPUTY ENGINEER GENERAL AND SOCIETY CATEGORY KERALA CO OPERATIVE MILK MARKETING FEDERATION LTD
ತ

11

19.

20.

21.

22.

Ammenia, which is used as a common 7001887271೬, 1123 ೩ 71011381 011138 0೦1111 வீ!
(५) -39.6°C () 0
(¢) -3.1°C (D) -33.3°C

Specific humidity (humidity ratio) is the ratio of :
(A) Mass of water vapour present per kg of dry air
(B) Mass of water vapour present in unit volume of air

(C) Actual mass of water vapour in a given volume to the mass of water vapour if the
air.... See more

1021.
DEPUTY ENGINEER GENERAL AND SOCIETY CATEGORY KERALA CO OPERATIVE MILK MARKETING FEDERATION LTD


⊏∣≣∃⋅

60.

61.

62.

63.

For steady rotational flow of a fluid Bernoulli's equation :
(ಗೆ) cannot be derived
{B) can be derived for the entire ண field
(C) can be derived only if the fluid is incompressible

(10) can be derived only for the points lving on the same stream

As per I8], concrete should be cured under a humidity of :
(ക) 20% 1) 98%
(ಲು) 50% (D) 90%

Low heat cement .... See more

1022.
TRADESMAN ELECTROPLATING TECHNICAL EDUCATION


5

1.

(

A

Maximum : 100 marks

Time : 1 hour and 15 minutes

A chemical reaction will occur spontaneously at constant pressure and temperature, if the
free energy 18 :

(५) ‏سو‎ 8) +VE

(0) -VE . (D) None of these
Entropy is a measure of the ———————— of a system.

(A} Temperature changes only (B) Disorder

(() Orderly behawvior (12) None of these
Fundamental principle.... See more

1023.
TRADESMAN ELECTROPLATING TECHNICAL EDUCATION
78.

79.

80,

81.

82.

88.

84.

85.

Milk 16 dried usually in ‏.ل سه يي‎
(A) Freeze (B) Spray
{C) Tray (D) Rotary

Diaphragm pumps are used to transport :
(^) ‏متام‎ (1) Liguids
(0 Fluids (D) Slurries

Cavitation in a centrifugal pump can be avoided by keeping the :
(4) Inlet pressure high (B} Outlet pressure low

(C) Inlet pressure low (D) Outlet pressure high

See more

1024.
TRADESMAN BIOMEDICAL ENGINEERING TECHNICAL EDUCATION
10.

11.

12.

13.

14.

-

16.

The order of imaging methods (from worst 10 best) with respect to visibility of detail
(resolution) is:

(A) Gamma camera, fluoroscopy, CT
(8) Ultrasound, fluoroscopy, radiography
(@) Gamma camera, fluoroscopy, MRI

(D) Radiography, fluoroscopy, MRI

Ventricular asynchronous pacemaker is also called as :
(^) TFixed rate pace maker (B) Demand pace maker
(©) Interna.... See more

1025.
TRADESMAN BIOMEDICAL ENGINEERING TECHNICAL EDUCATION
76.

11.

78.

79.

80.

81.

82.

88.

The average value of systolic and diastolic pressure of normal adult are:

(^) 80 ‏سد‎ Hg and 120 mm Hg
(C) 70 mm Hg and 140 mm Hg

The Cobalt 60 machine is used:
(ಯ) For laser treatment

(C) Radiotherapy

Insulin pump is used by patients with:

(ക) Diabetics
(€) Both of these

The laser used as photo coagulator:
(5) C.... See more

1026.
FOREMAN PRESSURE DIE CASTING UNIT KSIDC LTD SIDCO
16.

17.

18,

19.

20.

21.

22.

23.

The casting defect in which a slight displacement of the cope half of the casting with respect
to the drag half :

(5) Mismatch (8) Over size casting
(C) Swelling (D) Blow hole

Ability of sand 10 remain solid as a function of temperature :
(A) Flow ability (B) Refractoriness
(C) Permeability (D) Shear strength

The model of the casting in which it can b.... See more

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