MECHANICAL ENGINEERING Kerala PSC Previous Question & Answers

51.

JUNIOR INSTRUCTOR ARITHMETIC CUM DRAWING

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The taper on a shaft is indicated along the :
(^) outlines (8) dashed lines (C) dimension lines (D) centre lines

Writing of titles, notes etc. on a drawing is called :
(ಹ) Lettering (B) Dimensioning

(ಲ) Marking (D) All of the above

In a small size hole, the thread is cut by a tool called

(മ) chisel ൫ tap © die D) file
In a s.... See more

52.

FOREMAN STATE WATER TRANSPORT

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In a reciprocating pump, If Qt="Theoretical discharge and Qa= Actual discharge, then the
ratio 272 i known as :
‏ث9‎

(മ) Mechanical efficiency (B) Coefficient of discharge
(C) ஹ்‌ (D) Workdone

Reversible adiabatic process is also known as .
(ക) Isothermal process (B) Isobaric process

(C) Isochoric process (D) Isentropic process
Otto cycle consis.... See more

53.

LECTURER IN AUTOMOBILE ENGINEERING POLYTECHNICS TECHNICAL EDUCATION

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1f the air fuel mixture ignites before the spark takes place the condition known as :

(ക) Detonation (B) Ignition
(C) Pre ignition (D) Knocking
The octane rating of commercially available petrol is :
(^) 88-95 18) 95-100
(0). 100-110 യ 110-125
The power actually developed by the engine cylinder of an IC engine known as :
(5) Theoretical power (B) Actual pow.... See more

54.

TACER SOIL SURVEY AND SOIL CONSERVATION

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The ratio of quantities of liquid discharged from pump to that passing through impeiler at
unit time is known as

(A} Mechanical efficiency (8) Overall effidency

(C) Volumetric efficiency (50) Manometric efficiency

The percentage of power saving mav be attained in a single acting reciprocating pump by
the installation of an air vessel is :

(A) 48.8% (ठ) 784% (�.... See more

55.

LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF DOMESTIC APPLIANCES VHSE

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The transformer cores are laminated :
(ക) toreduce hysteresis losses (8) to reduce mechanical losses

)0 to reduce eddy current losses (D) to reduce copper losses

The shaft torque of a de motor is less than the electromagnetic torque because of ©
(ಗಿ) mechanical losses (18) hysteresis losses

(0 eohmic losses )0( stray losses

The collector curre.... See more

56.

LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND OPERATION OF BIO MEDICAL EQUIPMENTS VOCATIONAL HIGHER SECONDARY EDUCATION

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Bone vibrator is used in audiometry for the measurement of bone conduction threshold.
It transforms :

(A) Electrical energy into mechanical energy
(B) Mechanical energy into electrical energy
(£) Electrical energy into thermal energy
(D) Thermal energy into electrical energy

In fourth generation CT scanner :
(ಗಿ) X-ray source and detectors are rotating<.... See more

57.

PUMP OPERATOR GROUND WATER

110/2015

Maximum : 100 marks

Time : 1 hour and 15 minutes

1. A heat engine converts :
(ಹ) Heat energy into mechanical energy
(8) Mechanical energy into heat energy
(C) Heat energy into electrical energy

(D) Chemical energy into electrical energy

2. The engine valves are closed by :
) 0 (B) Crank shaft
(C) Valve spring (D) Piston

3. Inlet valve is made up of :
(4) Nickel chromium alloy steel ൫) High carbon steel
See more

58.

VOCATIONAL TEACHER MAINTENANCE AND REPAIRS OF DOMESTIC APPLIANCES VHSE

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Race around condition occurs in J-K Flip Flop when :
‏نیف‎ bothinputs are zero (B) ‏عط‎ inputs are complementary

(C) . buth inputs are one 7 (D) nene of the above

A demultiplexer can be used to realize a :
(A) counter (B) shift register
(C) display system , (D) combinational circuits

The logic swing of 8 gate is about 0.8V. This .... See more

59.

MECHANIC GR II KSRTC

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The automobile engines crank shaft is made of :
(A) Cast steel (2) Castiron
(C) Torged steel 10) High carbon steel

The main function of the ignition condenser is :
(2) increasing contact arching of terminals
(ए) reduces primary spark
(0) reduces secondary spark
(12) reduces arcing at the contacts

The angle between the central line of the king-pin and vertical line is called :.... See more

60.

TRADESMAN COMPUTER HARDWARE MAINTENANCE TECHNICAL EDUCATION TVPM IDK AND PKD

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Movement of a mouse is detected using LED in :
(A) Optical Mouse (B) Opto-mechanical Mouse
(൪ Mechanical Mouse (D) USB Mouse

Resolution of computer monitors is measured in :
(ക) 11 (B) mm
(~) ள்‌ (D) Pixel

CD-RW permits data to :
(ക) Write once (73) Write many times
(C) Write once and read many (D) Read enly

Zoned recording in hard.... See more

61.

LABORATORY TECHNICAL ASSISTANT COMPUTER APPLICATION VHSE

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Which among the following connect web pages?
(ಗ) 14
() ‏٦(‎

(0)
(1)

A network uses star topology 18:

Connector

None of these

(ಗಿ) computers arranged in a closed loop

(B) शी computers attach to a central point

(0) all computers attach to a single long cable

0 ೧೧೫100 ೫ attach to multiple hierarchical cables

See more

62.

WORKSHOP INSTRUCTOR/INSTUCTOR GARDE II/DEMONSTRATOR/DRAFTSMAN GR II ELECTRICAL ENGINEERING TED

84. The frequency of DC supply is :
(ಯ) Zero
(€) 50112

85. Relative permeability of vacuum is :
ക 47

© 1

6. The basic unit of electric charge is :
(A) ampere-hour
(~) coulomb

87. Semiconductor material have
(A) 10010
(0 mutual

88. The binary system uses power of
A 2
© 8

89. An active element is :
(A) Resistance
(¢) Current source

90, Ad.c. motor is used to:
(A) generate powerSee more

63.

TRADE INSTRUCTOR GRADE II PRINTING TECHNOLOGY KERALA TECHNICAL EDUCATION

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Any portion of a letter that extends below the base line is :
(A) Descender (8) ‏متي‎ (त) X-height (D) None of these

Internal curve that is part of a character in alphabetic design :

(೩) ‏معلل )8( ام5‎ (2) Sanserif (D) ஸு

Any line-spacing material that is thicker of larger than 24 points is :
(ಡಿ) Leads (.... See more

64.

OVERSEER/ DRAFTSMAN GR II ELECTRICAL NCA OBC PUBLIC WORKS/IRRIGATION

Question77:-The purpose of bedding provided in cable is
A:-Protect the cable from mechanical injury
B:-Protect the cable from atmosphere
C:-Protect metallic sheet from mechanical injury
D:-Prevent entering moisture to the cable
Correct Answer:- Option-C
Question78:-Silver plated mica capacitors are best suited for_____ application.
-High frequency application
B:-High voltage application
C:-Radio frequency application
D:-Power factor correction
Correct .... See more

65.

MOTOR MECHANIC HEALTH SERVICES

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The dilution of lubricating oil is caused by :
(A) Worn off particles (B) Water
(ಲ) Solid contaminants (D) Fuels

The brake lines in hydraulic brake system are made of :
(ಹಿ) Plastic (൫) Rubber രു Alminium 10) Steel

brings back shoes in their original position when the brakes are not applied.
(A) Compression spring (B) Retracting spring
(ಲ) Pr.... See more

66.

OVERSEER/ DRAFTSMAN GR II ELECTRICAL NCA OBC PUBLIC WORKS/IRRIGATION

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Assistant Drilling Engineer Mining & Geology Medium of Question : English

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The critical temperature and pressure of steam are :
ക) 373550, 225 bar ൫) 38350, 252 bar
(© 348°C, 184 bar D) 409°C, 166 bar

The mechanical efficiency of & 60 kW engine is 80%. What is the mechanical efficiency at 50%
of rated load, if the frictional power is assumed as constant with load?

(ക) 9 (®) 76.7%
(0 50% @ 80%

The relation for volumetric efficiency of a reci.... See more

68.

Offset Machine Operator / Reader - Kerala Legislature Secretariat

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The brightest area or an image?
(A) Tonal areas (B) Highlights
(C) Tint (D) Un-sharp areas

Which of these pulping methods almost completely removes lignin?
(ಹ) Chemical pulping (B) Mechanical pulping
(0) Hydro-pulping (D) Semi—Mechanical pulping

Identify the file format used for drawings?
(A) Gif (B) Eps
(C) Psd (D) Jpeg

Hot S.... See more

69.

Tracer - Town and Country Planning

082/22

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SI unit of force is
A) Newton B) Erg
C) Dyne D) Joule

A body of mass 10 Kg is moving with a velocity of 2 m/s, then kinetic energy is
Kgm/s.

A) 6 B) 14
C) 40 D) 20

If a car travels a distance of 30 ന in 10 second, the speed of the car is
A) 3 2 B) 3m/s
C) 300 m/s D) 300 m/s?

If the co-efficient of friction (4) is 0.3 and normal r.... See more

70.

Deputy District Education Media Officer - Health Services

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Consider the statements and select the correct answer :

@

Gi)
Gi)
(೪)

Intrusive igneous rocks are coarse crystal texture
Extrusive igneous rocks are fine crystal texture

Rhyolite and basalt are examples of extrusive igneous rocks
Granite and gabbro are examples of intrusive igneous rocks
(^) @ and (ii) are correct

൯ 0), Gi) and (iv) are correct

(C) All the above state.... See more

71.

ASSISTANT PROFESSOR (CARDIO VASCULAR AND THORACIC SURGERY -MEDICAL EDUCATION SERVICES

५१०८०५७ scale
B:-Rutherford scale
೦-೫೫0/5 score
D:-Euro score
Correct Answer: Option ®
QuestionS0:-All are sutureless valves EXCEPT
‘AcPerimount valve
B:-3f Enable valve
C:Perceval 5 valve
De-intuity valve
Correct Answer:- ೦೧000
QuestionS1:-Stentless valve is
AcEpie valve
B:-Perceval 5 valve
೦-76೦ valve
D=-Prima plus valve
Correct Answer:- Option-D
QuestionS2:-De Vega annuloplasty is done for the r.... See more

72.

ASSISTANT PROFESSOR (CARDIO VASCULAR AND THORACIC SURGERY -MEDICAL EDUCATION SERVICES

ಯು
170602
Correct Answer: Option-C
QuestionS8:-About SynCardia following statement is/are correct. Choose the correct option
(i) Right ventricular assist device
(i) Left ventricular assist device
(0) Biventricular assist device
‘Ac Only (i) is correct
B:-Only 0) is correct
८-00 (10 is correct
D:-None is corrrect
Correct Answer: Option-C
QuestionS9:-Most common cause of heart failure requiring heart transplantion is
‘ACongenital heart .... See more

73.

Assistant Professor in Cardio Vascular and Thoracic Surgery - Medical Education Services

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Assistant Professor in Cardio Vascular and Thoracic Surgery - Medical Education Services

75.

Junior Consultant (Anaesthesia) (NCA- E/T/B) - Health Services

D:Esmolol
Correct Answer: Option ®
Question31:-The reverse steal or robin hood effect is the
‘Ac Decrease in CMRO, seen with volatile anesthetics
B:-Neuroprotective effect of barbiturates
(1 in CMR seen with ketamine
D-Increase in ICP seen with succinylcholine
Correct Answer: Option ®
Question32:-Hypokalemia produces
‘AcShort PR interval
B:-Long QT interval
C:Ventricular extrasystoles
D- waves
Correct Answer: Option-C
Question33:-A pa.... See more

76.

Junior Consultant (Anaesthesia) (NCA- E/T/B) - Health Services

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