9. Find out the odd ane from the 101111೧0

(೩) Wheel cylinder

18) Bleeder ५

(त) Rubber cup (>) Thermostar

. Which of the following makes it possible 1o inerease the boiling poing o cor वत्ता ^
(५५) Radistor core

(8) Coulant pump
(0 1२७८ )0( ‏۱ھ‎

றா நானாட வற ¢ abave

Which type of clutch js

d in modem seooters 2
(ಸ) Diaphragm

(८) Multiplate.... See more

59.

61.

64,

In diesel engine, the fuel is ignited by :
(ಗಿ) the heat of compressed hot air (8)
(£) the hot exhaust gas (D)

Aluminium cylinder blocks require :

(ಗಿ) cast iron liners ‏رك‎
‎(0 aluminium liners ത
Wheel base of a vehicle is the :

(A) distance between the front tyres

(18) distance between the front and rear axles
(C) total length of the vehicle

(D) none of the above

.... See more

67,

68.

69.

70,

71.

172:

73.

१५.

75.

Which form of energy is stored in a hydraulic accumulator?
(ക Pressure energy (B) Kinetic energy
(C) Potential energy (D) Heat energy

Which of the following pump is suitable for high head and less discharge?
(A) Centrifugal pump (B) Reciprocating pump
(C) Came and piston pump (D) Plunger pump

Which of the following jig consist of a drill pl.... See more

25.

26.

27

28.

29.

30,

31,

32,

33,

1 ‏قي ءا مت‎ (೧87 நயா
(೩) Blockage removing (8) O.H. tank cleaning
(C) Testing of drain pipe (0) Testing of soil pipe

____is the best and the most improved type of system of plumbing.

(ക) ത Pipe System (8) Two Pipe System
(C) Single Stack System (D) Partially Ventilated System

A water having pH less than 7 is :

See more

l_____ifl. A device used to remove condensate from steam heated equipment is :

(ಯ) Coils

(C) Condensers

42. Centistokes is unit of :
(A) Absolute viscosity

(C) Pressure

48. Joule- Thomson co-efficient for an ideal gas is :

@ 1
© 0

44. Which 18 an example of reciprocating pump?

(A) Gear pump
(€) Lobe pump

45. Manometers are used 10 measure :
(ക) Flow rate

(C) Pressure difference
<.... See more

26.

27.

28.

29.

80.

31.

32.

33.

84.

What is the external indicator used in dichrometric titrations for the estimation of iron (II)
compounds?

(ക) Eriochrome black T (B) Methyl orange
(0) Thymol blue (D) ண்ட

What is the percentage composition of the Nitrogen in atmosphere?
ക 70 (B) 8
(¢) 21 (D) 09

What is the white coloured precipitate formed during the.... See more

34.

35.

86.

87.

88.

89.

40.

41-

“Whenever a body is immersed fully or partially in a fluid, the resultant force acting on it is
equal to the difference between the upward pressure of the fluid on its bottom and the
downward force due to gravity”. This is known as :

(A) DPascal’s law (B) Archimedes principle
(C) Newton’s law : (D) Bernoulli's theorem

For a perfect incompressible liquid fl.... See more

67.

68.

69.

70.

71:

172:

73.

74.

In a plain or simple index head, one complete rotation of the index crank rotates the spindle
by :
(^) 40 revolutions (B) one revolution

(0 1/4 of a revolution (D) 1/40 of a revolution

The defects on a die cast component due to cold metal slow shot, low die temperature is
known as :

(4) cracks (B) cold shut
(ಲ) sink marks (D) heat marks

Ca.... See more

76. If a pump NPSH requirements are not satisfied then :
1. It will not develop sufficient head to raise water
2. Its efficiency will be low
3. It will deliver very low discharge
4. It will be eavitated
Which of the above statements are correct?
മു 1,2and3 0) 2, ३४०१4
(0 1೩/64 (D) 1,2, 8and4

77. For a gear the product of circular pitch and diametral pitch is :

(4) 1 (B) 1.414
(0) Infinity D) =
78. Which one of the following is n.... See more

Correct Answer:- Option-A
Question67:-Which of the following water turbines does not require a draft tube 7
A:-Propeller turbine
B:-Kaplan turbine
C:-Francis turbine
D:-Pelton turbine
Correct Answer:- Option-D
Question68:-For transferring power through 90° the suitable gear is
A:-Helical
B:-Spur
C:-Bevel
D:-Herringbone
Correct Answer:- Option-C
Question69:-Cavitation in centrifugal pumps can be reduced by
A:-Reducing the discharge
B:-R.... See more

B:-Roller bearing
C:-Ball bearing
D:-Bush bearing
Correct Answer:- Option-A
Question59:-Which type of camshaft drive mechanism is used in over head camshaft engine 7
A:-All of the above
B:-Gear drive
C:-None of the above
D:-Chain drive
Correct Answer:- Option-D
Question60:-The purpose of the waste gate in the turbo charger is
A:-Produce over boost
B:-Prevent over boost
C:-Cool the air fuel mixture
D:-Heat the air fuel mixture
Correct An.... See more

73,

74.

75,

76.

77.

78.

79.

80,

81,

What is the necessity of flywheel ring gear ?
(ಹ) Starting purpose (8) Power transmission
(ಲ) Balancing flywheel (D) Identifying timing

The ability of metal to resist the effect of tensile force without rupturing :

(ಹ) Elasticity (B) Plasticity (© Ductility ற)

The carbon content of cast iron is usually :
(A) 2to45% (B) Morethan 5% (C.... See more

84.

85.

86.

37.

38,

89.

40.

41.

42,

Kaplan turbine is an example for :

(മ) Tangential flow (B Radial flow
(0) Mixed flow (D) Axial flow
For a normal runner Francis turbine, the specific speed is in the range of :
(है) 25-30 (B 250-850
(©) 100-150 D) 250-400

The power developed by a jet of water with a flow rate of 40 m¥%s from a height of 200 m is :
‏لم‎ MW ©0 7See more

Popup waste is replacement of what ?
(வ) Rubber plug of chain (B) Floating paper
(೧) Towel (D) Cotton

is an appliance for heating water in bathroom.
(ക) Sink (B) Geyser
(C) Stove (D) Wash basin

Which one of the following receives human excreta directly from the user ?
(A) Urinal (3) Wash basine
(C) Water closet യ Bidet

The minimum horizontal distance between a ground water well and septic tank should be
(A) 15m B ‏2د‎
‎(©.... See more

PROVISIONAL ANSWER KEY

Question Paper Code: 45/2019/0L

Category Code: 163/2018

Exam: Junior Instuctor (Plumber}
Medium of Question: English

Date of Test 03-10-2019

Department Industrial Training Department
Alphacode A

Question1:-The water closet having an integral part of trap S and P type out let have a water seal size of .....
A:-25 mm
B:-50 mm
C:-75 mm
D:-100 mm
Correct Answer:- Option-C
Question2:-Which typ.... See more

92.

93.

94.

95.

96.

97.

98.

99.

100.

The power actually delivered by a tractor to pull or move an implement at uniform speed is
called:

(^) Break horse power (8) PTO hp
(C) Indicated horse power (0) Drawbar horse power

Inrice hullers, hulling is achieved by passing rice between two rollers rotating:
(A) At same speeds one clockwise and other anticlockwise
(B) At same speed clockwise.... See more

78.

79.

80.

81.

82.

83.

84.

85.

063/21

Pressure of power operated sprayers ranges from

A) 20 to 25 kg/cm?
C) 20 to 45 kg/cm?

The pump used in most of the hydraulic spr.
A) Positive displacement pump

C) Plunger pump

B) 20 to 35 kg/cm?
0) 20 to 55 kg/cm?

ayer is
B) Vane pump
D) Reciprocating pump

The nozzle used for herbicide and fungicide appli.... See more

073/21

37.

38.

39.

40.

41.

42.

43.

Where are flanged joints preferred ?
A) In sewer lines 8) In temporary pipe lines
C) For AC pipes D) For PVC pipe lines

Why foot valves are provided in suction pipe ?
A) For the safety of the pump

B) For holding water in suction line

C) For the safety of pipe lines
)

D) To get more efficiency

What is the advantage of intermittent .... See more

073/21

86.

87.

88.

89.

90.

91.

92.

Carbonate hardness means

A) Temporary hardness B) Permanent hardness

C) Colloidal hardness D) None of these

The system requires less number of valves and design of pipe size is easy

A) Circular system B) Radial system
C) Dead end system D) Ring system
PPR means

A) Poly Plastic Ready Pipe

B) Poly Propylene Random Pipe

C) .... See more

92.

93.

94.

95.

96.

97.

98.

99.

100.

019/23

Which type of sensor used to monitor the injection timing and ignition timing of engine ?
A) Crank and cam shaft position sensor _B) Throttle position sensor
C) Pressure sensor D) Engine knocking sensor

In an alternator the magnetic field is produced in the
A) Stator B) Frame C) Regulator D) Rotor

Which gas is filled in the sealed bea.... See more

51.

52.

53.

54.

55.

56.

57.

218/23

What is the name of pipe line from FIP to injector in a diesel fuel feed system ?
A) High pressure pipe B) Low pressure pipe
C) Delivery pipe D) Sution pipe

Why is there a vent hole provided either in filler neck or cap in an engine fuel tank ?
A) Not need for vent hole B) To maintain atmospheric pressure

C) To avoid overflow D) To maintain fuel temperature
See more

conditions of engine in Fl. pump is?
A:-Bleeding
B:-Caliberation
C:-Phasing
D:-Greasing
Correct Answer:- Option-B

Question46:-Energy released by the complete combustion of unit mass fuel is called

A:-Specific gravity
B:-Flash point
C:-Density
D:-Calorific value

Correct Answer:- Option-D

Question47:-The device in the diesel fuel feed system which convert low pressure

fuel to high pressure to inject fuel is
A:-Fuel fe.... See more

5

Correct Answer

--Question Cancelled

Question32--Air flows steadily at low speed through a horizontal nozzle, discharging to atmosphere. The area at the nozzle inlet is 0.1 ¢q2 and at the exit 0.02 772 . Determine the
gauge pressure (kPa) required at the nozzle inlet to produce an outlet speed of 50 mis.

۸48

೦-448

D:-2.48

Correct Answer

:-Question Cancelled

Question33:-A simple U-tube manometer i.... See more

Correct Answer:- Option-A
Question67:-Which of the following water turbines does not require a draft tube ?
A:-Propeller turbine
B:-Kaplan turbine
C:-Francis turbine
D:-Pelton turbine
Correct Answer:- Option-D
Question68:-For transferring power through 90° the suitable gear is
A:-Helical
B:-Spur
C:-Bevel
D:-Herringbone
Correct Answer:- Option-C
Question69:-Cavitation in centrifugal pumps can be reduced by
A:-Reducing the discharge
B:-R.... See more

B:-Roller bearing
C:-Ball bearing
D:-Bush bearing
Correct Answer:- Option-A
Question59:-Which type of camshaft drive mechanism is used in over head camshaft engine ?
A--All of the above
B:-Gear drive
C:-None of the above
D:-Chain drive
Correct Answer:- Option-D
Question60:-The purpose of the waste gate in the turbo charger is
A:-Produce over boost
Prevent over boost
C:-Cool the air fuel mixture
D:-Heat the air fuel mixture
Correct Answe.... See more

87.

88,

89.

90,

91,

92,

93,

94,

95,

Flash back and back fire occurs in welding.
(A) Electric arc welding (8) Gas welding
(ಲ) Resistance welding (D) TIG welding

The pulley for flat belt is generally made convex and this is called
(ಹ) Buffing (B) Crowning (©) Moulding (D) Polishing

Which one of the following is used for closing a pipeline which has an internal thread ?
(A) plug (.... See more