NON RETURN VALVE PUMP Kerala PSC Previous Question & Answers

276.

TRADESMAN PLUMBING TECHNICAL EDUCATION/PLUMBER KWA

61. What should be used to connect two pipe with same diameter ?

(A) Reducer (8) Socket

(C) Eccentric Reducer (D) Concentric Reducer
62. The most important part of a trap is :

(A) Water seal (8) Diameter (<) Depth of water (D) Height
63. For achieving self cleaning velocity, 150 mm dia pipe should have a slope of :

(8) 1:35 (B) 1:40 (©) 1:50 (D) 1:60
64. Lead caulked joints are provided in _ pipe.

(A) ‏.ا‎ pipe (8) ‏عمام ل‎ .... See more

277.

LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND OPERATION OF MARINE ENGINES VHSE

47,

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506.

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52.

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54.

58.

The C.I. engine pistons are generally made ज

(A) Aluminium alloy (B) Stainless steel
() Copper 10) வண

White metal is an alloy used in diesel engines to manufacture :
(ക) Connecting rod bolts (B) Exhaust valve
{C) Main bearing (D) Engine body

Cylinder liners are subjected to extreme heat of combustion and it has to permit the piston
and piston.... See more

278.

TECHNICIAN GR II REFRIGERATION MECHANIC KCMMF LTD

80, Evaporative condensers cooling medium is :
(A) Combination of air and water (B) * Refrigerant vapour
(C) Natural Air (D) Chilled water

81, The effect of cooling produced by a good installed unit will be :
(ಯ) Maximum (B) Minimum
(0 Intermittent (D) Poor

52. In arefrigeration system frosting starts from capillary due to ;
(A) 0il in evaporator coil (8) Compressor has poor pumping
(0) Gas quantity is less (D) Drier filter partially blocked

5.... See more

279.

WORK ASSISTANT NCA KSRTC

10.

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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

280.

LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF AUTOMOBILES VHSE

47.

48.

49.

50.

ST,

52,

83.

Mechanical efficiency of an engine 5

(^) IHP/BHP (B) BHP/IHP (9 BHP/FHP ~ FHF/BHP

The sound produced due to the excess clearance between piston and cylinder during cold
starting :

(८) Knocking (B] Diston slap (೮) Humming (ப) Piston scuffing

The distance between center line of crankpin and main journal axis is :
(A) Crank throw (9) Valve clearance

).... See more

281.

TRADESMAN TOOL AND DIE MAKING TECHNICAL EDUCATION TSR

61.

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=

68,

For the ejection of thin- walled box - type mouldings - ejector pins are used ;
(A) Stepped ejector pin 18) D-shaped ejector pin

(C) “-shaped ejector pin (D) Nome of the above

For ejection of circular bosses on a moulding the ideal ejection method is ;

(ಗಿ) Pin ejection (B) Sleeve gjection

(0) DBar ejection (D) Air ejection
The principle of withd.... See more

282.

VOCATIONAL INSTRUCTOR IN MAINTENANCE AND REPAIRS OF AUTOMOBILES VOCATIONAL HIGHER SECONDARY EDUCATION

049/2018 | g

29.

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36.

Plastigauge is used to find the clearance of
A) Piston pin B) Bearing
C) Rings D) Valves

The valve guide stem clearance is measured by using a
A) Inside vernier calliper

B) Scriber

C) Dial Gauge

D) Inside micrometer

When pressure in the cooling system exceeds a certain predetermined value, the excess
pressure wi.... See more

283.

LIVE STOCK INSPECTOR GR II NCA ANIMAL HUSBANDRY

ಹಗ
B:-boron
C:-manganese
D:-molybdenum
Correct Answer:- Option-B
Question98:-An organism used 85 biofertili
A:-azolla
B:-volvox
C:-ulothrix
D:-chlamydomonas
Correct Answer:- Option-A
Question99:-Which of the following plant hormones is used as weedicide?
ಹಿಡಿಸಿ
B:-NAA
C:-Kinetin
D:-2,4-D
Correct Answer:- Option-D
Question100:-The valve which guards the right atrio-ventricular aperture ‏ما‎ human heart isSee more

284.

VOCATIONAL TEACHER PRINTING TECHNOLOGY KVHSE

Question86:-The valve(s) closed during compression stroke of an IC engine is/are
A:-Inlet valve
B:-Exhaust valve
C:-Both inlet and exhaust valve
D:-None of the above
Correct Answer:- Option-C
Question87:-The cooling tower in a steam thermal power plant is a device for
A:-Condensing steam into water
B:-Cooling exhaust gas coming out of a boiler
C:-Reducing temperature of superheated steam
D:-Reducing temperature of cooling water used in ते condenser
See more

285.

VOCATIONAL TEACHER PRINTING TECHNOLOGY KVHSE

286.

ASSISTANT PROFESSOR IN PATHOLOGY MEDICAL EDUCATION

Question67:-Which is true about Dilated cardiomyopathy?
A:-results in systolic (contractile} dysfunction
B:-results in diastolic {relaxation) dysfunction
C:-results in stiff, noncompliant myocardium
the least common type
Correct Answer:- Option-A
Question68:-Which is NOT TRUE of MPO-ANCAs7
A:-Are associated with microscopic polyangiitis
B:-Are associated Churg-Strauss syndrome
C:-Do not form circulating immune complexes
D:-Associated with polyarteritis nod.... See more

287.

JUNIOR INSTRUCTOR MECHANIC DIESEL INDUSTRIAL TRAINING ENGLISH

65,

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72.

Which tool is used to mark large circles in sheet metal work ?
(A) Divider (8) Scriber (ಲ) Trammel (D) Surface gauge

Which heat treatment process metal cools slowly in the furnace ?
(5) Normalizing (8) Tempering (ಲ) Hardening (D) Annealing

In actual valve timing the inlet valve close :
(ಹ) AtBDC ൫ Before BDC = (©) After BDC (D) After TDC

Cast iro.... See more

288.

Treatment Organiser Gr.II Health Services English

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35.

The innermost layer lining the lumen of alimentary canal is :
(A} Serosa {B) Mucosa
€) Muscularis (2) Sub mucosa

The opening between the right atrium and the right ventricle is guarded by a valve is
known as:

{A) Bicuspid valve {B) Pyloric sphinctor
(0 Semilunar valve യ) Tricuspid valve

‘Which part of human brain regulates body temp.... See more

289.

Junior Instructor Mechanical Agricultural Machinery

063/21

39.

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44.

. The gasket sealing is most difficult problem at

A) Valve cover B) Intake manifold
C) Head D) Exhaust manifold

The fluctuation of engine speed during a cycle depends upon
A) Mass of fly wheel B) Governor speed

C) Mass of crankshaft D) Speed of fly wheel

The major loss in a 0.1. engine is
Rubbing friction loss
Pumping loss

Direct heat loss
See more

290.

DRAUGHTSMAN GRADE II (MECHANICAL) in KEAEC Ltd and OVERSEER/ DRAFTSMAN (MECHANICAL) GRADE II in PWD/ Irrigation

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066/21

In a petrol engine evaporative emission is controlled by

A) Catalytic convertor
©) SCR

Excessive valve clearance results
A) Valve lead

C) Decrease volumetric efficiency

Which among the following is used to close
A) Union
C) Cap and plug

Engine crankshaft bearings are
A) Ball bearing
C) Foot step bearing
<.... See more

291.

Shift Supervisor (Factory) State Farming Corporation of kerala Limited

Correct Answer:- Option-C
Question24:-There is either a positive clearance or negative clearance in
AcTransition fit
B:-Clearance fit
Cointerference fit
D-None of the above

Correct Answer: Option:

‘Question25:-In hole basis system and for a clearance fit, the basic size of shaft is 30 mm, minimum clearance is 0.02 mm, tolerance on hole 15 0.033 mm, tolerance on shaft is 0.021
mm, The maximum limit of hole equals,

‎mm‏ 30ھ
‎mm‏ 30..... See more

292.

ASSISTANT PROFESSOR (CARDIOLOGY) -MEDICAL EDUCATION SERVICES

‘Ac Epsilon wave is 2 very sensitive finding
B:-Monomorphic ventricular tachycardia, LBBB morphology, superior axis
‏کی‎ inversion extending to V3 or beyond
D-Fibrofatty replacement of the myocardium
Correct Answer:- ೦೧000
Question4::Which of the following conditions is most commonly associated with development of complete heart block 7
‘AcAtrialseptal defect
B:-Supravalvar aortic stenosis
ட்ட of falot
D:-Physiologically corrected TGA
C.... See more

293.

ASSISTANT PROFESSOR IN CARDIOLOGY- MEDICAL EDUCATION SERVICES

294.

Assistant Professor in Kaumarabhritya - Ayurveda Medical Education

111)
(11)
D-None of the above
Correct Answer:- ೦೧000
Question91:-Normal karyotyping with physical features of Turner syndrome
‘Ac Fragile X syndrome
B:-Noonan syndrome
CG, Deletion syndrome
D-None of the above
Correct Answer: Option ®
Question92:~Visaala Sthabda nayana..." which ‏هوم‎ is explained by Acharya Kashyapa ?
‘A Chakshuraamaya
B:-Kukunaka
C-Aanaaha
D-Adhijihwika
Correct Answer: Option-C
Question93:-Graha as.... See more

295.

Assistant Professor in Kaumarabhritya - Ayurveda Medical Education

296.

Motor Vehicle Inspector, Assistant Motor Vehicle Inspector

35.

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42.

The centre of gravity of an equilateral triangle with each side (a) is___ from any of
the sides.
. /3 a. V2
മ) 8) 5-5
(A) 2 (8) 3
(C) a/2 v3 (D) a/3 v3

The moment of inertia of a triangular section base (b) height (h) about an axis passing
through its centre of gravity and parallel to the base is given by the relation

(ಗಿ) 003/12 (8) 0೧3/24
See more

297.

Draftsman Gr I, Overseer Gr II/ Draftsman Gr II,Engineering Assistant Gr II, Field Assistant etc in Port,Irrigation, PWD etc

95.

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073/23

Which of the following is not a biological treatment method for sewage ?
A) Trickling filters B) Activated sludge process
C) Grit chamber D) Aerated lagoons

Which of the following pipe appurtenance is used to prevent flow of water in backward
direction ?
A) Sluice valve B) Relief valve C) Reflux valve D) Scour valve

Sewerage system in which both sewage and storm water .... See more

298.

Motor Mechanic, Tradesman (Automobile Mechanic) - Health Services,

072/23

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93.

Choose the wrong statement regarding ‘Tail lamp operation’.
1. Tail lamp will illuminate only when brake pedal is pressed
1. Tail lamp will illuminate with headlights
iii. It give indication to the vehicles behind driving in nights
A) i B) ii
C) iii D) All of the above i, ii and iii

Choose the color used for pilot lamps.
A) White B) Green C).... See more

299.

Tradesman (Diesel Mechanic)

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074/23

A periodic variation in the speed of a governed engine due to inertia or friction in the
mechanism is called

A) Engine hunts B) Engine knocks
C) Engine torque D) Engine rpm

The exhaust manifolds are designed to avoid overlapping of exhaust strokes as far
as possible, this keep the back pressure to a

A) Maximum B) Same

C) Minimum D.... See more

300.

LINEMAN GR.I

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143/23

The wastegate is used to

A) Release the exhaust gas from muffler to tailpipe

B) Allow part of exhaust gas back to inlet manifold for more power

C) Allow part of exhaust gas to pass through compressor

D) Allow part of exhaust gas to by-pass turbine, to prevent detonation

Which engine part is made by centrifugal casting ?
A) Connecting rod B) C.... See more

301.

Lecturer in Electronics and Instrumentation (Polytechnics)

Question64:-An equal percentage valve has a maximum flow of 100 em3/s and a
minimum flow of 4cm3 /s. If the full travel is 4cm, find the flow at 2cm opening

A:-40 em3 /S
B:-10cms /s
C:-50cms /s
D:-20cm3 /S
Correct Answer:- Option-D

Question65:-Valve positioners are mandatory in the following circumstances
(i) When accurate valve position is required

(ii) To speed up the response of a valve

(iii) Where a pressure boost is required to giv.... See more

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