NON RETURN VALVE PUMP Kerala PSC Previous Question & Answers

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

302.

Technician Grade II (Operator Grade II)

A:-Have high calorific value
B:-The combustion rate can be easily controlled
C:-Have less Thermal efficiency
D:-Easy to ignite and easy to shutting of operation
Correct Answer:- Option-C
Question88:-Coal gas is obtained
A:-By partial combustion of coal
-By carbonization process of coal
C:-By passing steam over coal
D:-From the by products of blast furnace
Correct Answer:- Option-B
Question89:-To discharge mud and other sediments the boiler is provided .... See more

303.

Pump Operator

A:-Only i

B:-Only ii

C:-Only iii

D:-Only iv

Correct Answer:- Option-C
Question64:-Radiator pressure cap contains
i. Vacuum valve
ii. Thermostat valve
ili. Pressure valve

A:-Only i and iii

B:-Only ii and iii

C:-Only i and ii

D:-All of the above (i, ii and iii)

Correct Answer:- Option-A
Question65:-The operating temperature of thermostat valve is
1. 70°C
ii. 80°C
iii. 100°C

.... See more

304.

Assistant Professor in Kaumarabhritya

സ 18
(71507) 23
D:-None of the above

Correct Answer: Option:

‘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,
‘Ac Chakshuraamaya
B:-Kukunaka
‏مهمهف‎
‎D:-Adhijihwika

Correct Answer: Option-C

* which roga is explained by A.... See more

305.

Assistant Professor in Cardiology

‘Ac Epsilon wave is @ very sensitive finding
B:-Monomorphic ventricular tachycardia, LBBB morphology, superior axis
C:T inversion extending to V3 or beyond
D:-Fibrofatty replacement of the myocardium
Correct Answer:- Option-é
Question4:Which of the following conditions is most commonly associated with development of complete heart block 7
‘AcAtrialseptal defect
B:-Supravalvar aortic stenosis
1
D- Physiologically corrected TGA
Correct Answer:- Option-D.... See more

306.

Shift Supervisor (Factory)

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 is 0.033 mm, tolerance on shaft is 0.021
mm, The maximum limit of hole equals,

30ھ
‎B:-30.033 mm‏
See more

307.

ASSISTANT PROFESSOR IN PATHOLOGY

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
D:-is the least common type
Correct Answer:- Option-A
Question68:-Which is NOT TRUE of MPO-ANCAs?
A:-Are associated with microscopic polyangiitis
B:-Are associated Churg-Strauss syndrome
C:-Do not form circulating immune complexes
D:-Associated with polyarterit.... See more

308.

VOCATIONAL TEACHER PRINTING TECHNOLOGY

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 a condenser
Corr.... See more

309.

86/2016/OL

310.

LIVE STOCK INSPECTOR GR II - NCA

۸-0
B:-boron
C:-manganese
D:-molybdenum
Correct Answer:- Option-B
Question98:-An organism used as biofertilizer is
A:-azolla
-volvox
C:-ulothrix
D:-chlamydomonas
Correct Answer:- Option-A

Question99:-Which of the following plant hormones is used as weedicide?
A:lAA
B:-NAA
C:-Kinetin
D:-2,4-D
Correct Answer:- Option-D

Question100:-The valve which guards the right atrio-ventricular aperture in human heart is
A:-semi.... See more

311.

Assistant Project Engineer - Kerala Land Development Corporation Ltd

78.

79.

80.

81.

82.

83.

109/23

In a drip irrigation system, organic matter or algae can be removed by using the
A) Sand media filter B) Screen filter
C) Centrifugal separator D) Disc filter

The soil sample of a field when tested shows EC of saturation extract with value
greater than 4.0 milli mhos/cm at 25°C, ESP value greater than 15 and pH of saturated
paste exceeds 8.5. Hence, soil is classified as
See more

312.

Assistant Project Engineer - Kerala Land Development Corporation Ltd

313.

Tradesman (Plumber) - Technical Education

36.

37.

38.

39.

40.

41.

42.

48.

44.

45.

Sullage received trap is known as
(A) WC trap
(C) Running

(B) EWC trap
(D) Floor

is provide to prevent the passage of foul gases.

(^) Union
(C) Trap

(B) Scraper
() Tee

RCC bed concrete required for embedding the trap.

(^) 6
(6 8

Purpose of pumps
‏ھ)‎ To lift raw water
(.... See more

314.

A/C MECHANIC KTDC

21.

22,

23,

24,

25,

26,

27.

28,

29.

What thickness of metal sheets are called as plates ?
(^) Above 3 mm (B) Above 5 mm
(C) Above 7mm (D) Above 10 mm

What gases are used for the application under water gas cutting of steel ?
(ಹ) Oxygen-coal (B) Oxygen-LPG
(0 Oxygen-Hydrogen (D) Oxygen-Acetylene

In which gas welding technique the blow pipe and filler rod angles are 50 and 40 respec.... See more

315.

JUNIOR INSTRUCTOR MRAC INDUSTRIAL TRAINING

Question58:-Temperature control device used in Air Conditioner is known as
A:-Thermostatic Expansion Valve
B:-Thermostatic switch
C:-AEV.
D:-H.P.C.
Correct Answer:- Option-B
Question59:-Volumetric efficiency of a compressor is expressed in
A:-Percentage
B:-Calorie/Hr.
C:-BTU/Hr.
D:-Psig
Correct Answer:- Option-A
Question60:-Inverter Refrigerator is working under the principle of
A:-Frequency modulating
B:-Voltage modulating
C:-Current m.... See more

316.

JUNIOR INSTRUCTOR - MRAC

Question58:-Temperature control device used in Air Conditioner is known as
A:-Thermostatic Expansion Valve
B:-Thermostatic switch
6:۸
D:-H.P.C.
Correct Answer:- Option-B
Question59:-Volumetric efficiency of a compressor is expressed in
A:-Percentage
B:-Calorie/Hr.
C:-BTU/Hr.
D:-Psig
Correct Answer:- Option-A
Question60:-Inverter Refrigerator is working under the principle of
A:-Frequency modulating
B:-Voltage modulating
C:-Current modu.... See more

317.

Lecturer in Commerce

092/23

6.

10.

11.

12.

13.

Find the range of given observations.
33, 42, 29, 56, 35, 27, 24, 34, 39, 40.
A) 31 B) 32 C) 34 D) 29

From the following which one is the measure of flat-toppedness of a curve and points
to the nature of distribution of items in the middle of a series ?

A) Measures of Relationship B) Skewness

C) Kurtosis D) Measures of Dispersion
Which one of the following is not a type of c.... See more

318.

TRADESMAN CHEMICAL ENGINEERING TECHNICAL EDUCATION QUESTION PAPER

20. Convert the 50% of methanol water mixture by weight to mole %.

21.

23.

24.

26.

27.

A) 50 mole % B) 36 mole %
C) 64 mole % D) 25 mole %
Density of water at 0° C and at 1 aim pressure

A) 1000 kglem® B) 1000 kg/cm?
C) 1000 kg/m® D) 1000 glem®

Reynolds number is the ratio of

A) Viscous forces to inertial forces
B) Viscous forces to static forces
C) Static forces to viscous forces
D) Inert.... See more

319.

LECTURER IN MACHANICAL ENGINEERING POLYTECHNICS TECHNICAL EDUCATION

10.

11

12.

18.

14.

18.

16.

The head against which the centrifugal pump has to work is called :
(^). Btatic head (B) Suction head
(¢) Delivery head (11) Manometric head

An example of a turbine with high head and low specific speed is :
(ಯ) Kaplan (B) Francis
(6 Pelton (D) None

The slip of a single acting reciprocating pump, running at 50 rpm, delivers 100 liters/s when-
the diameter of piston a.... See more

320.

OPERATOR FOAM MATTINGS INDIA LIMITED

34.

35.

87.

89.

40.

Which type of fire extinguisher is to be used on electrical equipment or installation under
fire?

(ಗೆ) foam type (B) உவ type
(0 gas cartridge water filled type (D) stored pressure water filled type

What is the type of winding wire you would select for rewinding the armature of a
mixerfliquidizer motor?

(4) single silk covered copper wire (ए) single cotton covered copper wire .
(0.... See more

321.

SENIOR MECHANIC HARBOUR ENGINEERING DEPARTMENT

28.

24.

25.

26.

27.

28.

29. -

30.

31,

A centrifugal pump is operated through a V belt drive by a 3 phase induction motor. Pump

efficiency is 50 %, transmission loss is 10 % and motor efficiency is 80 %. Electrical power
nceded to operate the pump when producing 3.6 kW hydraulic power output is :

வ கண ര 728೫
)© 10kW @) ‏۷۴ھ‎
‎Pressure inside the Pelton whee.... See more

322.

ASSISTANT PROFESSOR CHEMICAL ENGINEERING TECHNICAL EDUCATION

A:-Tension on the tight side of the belt

B:-Tension on the slack side of the belt

C:-Some of tension in the tight side and slack side

D:-Average tension of the tight side and slack side of the belt

Correct Answer:- Option-D
QuestionB4:-The tenacity or hardness with which the bond holds the cutting point or abrasives in place of a grinding wheel
15 defined by the term ?

A:-Structure

B:-Grit size

C:-Grain size

D:-Grade.... See more

323.

ASSISTANT ENGINEER CIVIL SR FOR ST ONLY LSGD

C:-Intake structure
D:-Stilling basin
Correct Answer:- Option-D
Question94:-In case of open channel flow, for calculating the specific energy what will be taken as datum 7
A:-Static Energy Line
B:-Kinetic Energy Line
C:-Bottom of channel
D:-Horizontal line passing through level of critical depth
Correct Answer:- Option-C
Question95:-Which among the following may be prescribed as design mix 7
ക്‌

Question96:-In which of the following, the slu.... See more

324.

JUNIOR INSTRUCTOR LABORATORY ASSISTANT CHEMICAL PLANT INDUSTRIAL TRAINING DEPARTMENT

C:-observation of the condition of dye -filament which become wavy or imegular at the onset
of the turbulence.
D:-measurement of intensity of turbulence
Correct Answer:- Option-C
Question68:-The laminar flow is characterized by:
A:-iregular motion of fluid particles
B:-fluid particles moving in layers parallel to the boundary layer
C:-high Reynolds number of flow
D:-existence of eddies
Correct Answer:- Option-B
Question69:-The parameters which determines t.... See more

325.

ASSISTANT ENGINEER CIVIL SR FOR ST ONLY LSGD

326.

ASSISTANT PROFESSOR CHEMICAL ENGINEERING TECHNICAL EDUCATION

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