karnatakapower.com Junior Engineers Mechanical Model Question Paper : Karnataka Power Corporation

Name of the Organisation : Karnataka Power Corporation Limited
Post : Junior Engineers
Subject :JE-Mechanical
Document Type : Model Question Paper
Website : https://kpcl.karnataka.gov.in/
Download Model Question Papers : https://www.pdfquestion.in/uploads/26128-jemechanical.pdf

Karnataka Power Junior Engineers Mechanical Model Paper

Recruitment for the post of Junior Engineers JE-Mechanical Model Question paper download from the above PDF Links

Related : Karnataka Power Corporation Assistant Engineers Mechanical Model Question Paper : www.pdfquestion.in/26101.html

Karnataka Power Corporation Ltd., (KPCL) a Government of Karnataka Undertaking, is a premier and professionally managed power Generation Company. Optimum generation from existing plants and speedy commissioning of new plants extends immense professional opportunities for competent and qualified personnel.
Note :
** Hyd-Kar Candidates applying for Non Hyd-Kar posts also, should submit separate applications and furnish the post code and application number in Hyd-Kar application.
** Candidates applying for more than one post will have to choose the same exam centers.
** Application will not be accepted through post, personal delivery, courier or any other mode.

Sample Question

1.Which of the following statements is true with respect to the sensible cooling of air?
a. It is a process in which only the sensible heat of the air is removed and there is no change
in the moisture content.
b. It is one of the most common psychrometric processes.
c. There is overall reduction in the enthalpy of the air.
d. All the above

2. Which of the following effects the laminar-turbulent transition?
a. The transition happens when the viscosity of the fluid is decreased.
b. The transition happens when the density of the fluid is increased.
c. Both a and b
d. None of these

3. What is a perfect blackbody?
a. It is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence.
b. It is an idealized physical body that absorbs all incident ultra violet radiation, regardless of angle of incidence.
c. It is an idealized physical body that absorbs all incident gamma ray radiation, where the angle of incidence is 90′.
d. None of these

4. Which law of thermodynamics defines the concept of thermodynamic entropy?
a. Zeroth law
b. First law
c. Second law
d. Third law

5. Which of the following is true with reference to bypass factor?
a. Bypass factor decreases as contact factor increases
b. Bypass factor is independent of contact factor
c. Bypass factor decreases as contact factor decreases
d. Bypass factor is the log of contact factor

6. Which of the following has the lowest Prandtl number?
a. Air
b. Hydrogen
c. Water
d. Mercury

7. What is the sensible heat factor if Hs=sensible heat gain=36kJ/s and HL-Latent Heat Gain 24
a. 0.15
b. 1.50
c. 0.6
d. None of these

8. The system where a gas turbine is used to generate electricity, hot water and air conditioning, it is called
a. Aqua-thermal regeneration
b. Cogeneration or Trigeneration
c. Thermo-electric conditioning
d. None of these

9. Which of the following effects the thermal diffusivity of material?
a. Specific heat capacity of the material
b. External temperature
c. Pressure
d. All the above

Which of the following metals has the highest thermal diffusivity.
a. Aluminum
b. Copper
c. Gold
d. Silver

What is a sprue?
a. It is the cavity created to facilitate quick cooling of liquid material in a mould
b. It is the cavity created inside the mould for smooth flow of liquid metal
c. It is the passage through which liquid material is introduced into a mould
d. None of these

Which of the following operations can be carried out on a lathe
a. Cutting
b. Sanding
c. Knurling
d. All the above

Which of the following needs to be considered in calculating contraction allowances?
a. Type of alloy being cast
b. Size of the sprue
c. Time spent on removing the cast
d. All the above

While casting, which of the following shrinkages need to taken considered?
a. Liquid shrinkage
b. Solid shrinkage
c. Both a and b
d. None of the above

Which of the following types of flames are desirable while welding?
a. Oxidizing flame
b. Reducing Flame
c. Neutral flame
d. Both a and b

Which of the following is true with respect to chlorofluorocarbons? (CFCs), but also include newer refrigerants which typically include fluorine instead of chlorine and do not deplete the ozone layer.
a. They are implicated in ozone depletion.
b. They are used as as refrigerants as well as aerosol propellants.
c. Many of them are banned or severely restricted by the Montreal Protocol.
d. All the above

What is the unit for measurement of enthalpy?
a.kJ
b. Kj/kg
c. Kg/kJ
d. None of the above

What is an an adiabatic process?
a. It is a process where there is no transfer of heat but matter is transferred between a system and its surroundings.
b. It is a process where there is a transfer of both matter and heat between a system and its surroundings.
c. It is a process where there is no transfer of heat or matter between a system and its surroundings.
d. None of these

Which of the following use Brayton Cycle?
a. Gasturbine engines
b. Airbreathing jet engines
c. Both a and b
d. None of the above

20. Which of the following is true with respect to upset forging
a. Upset forging increases the diameter of the work-piece by increasing its length.
b. Upset forging increases the diameter of the work-piece by compressing its length.
c. Upset forging increases the diameter of the work-piece by melting and recasting it.
d. None of the above

General Instructions

a. Applicants should be Indian Citizens.
b. Candidates who are still awaiting the result of the qualifying examination on the last date fixed for submitting applications need not apply.

c. If, at any point of time it is found that the candidate has given false information he/she will not only be disqualified from further stages of recruitment but also liable for appropriate legal action.

d. Number of vacancies indicated in this notification is provisional which may increase or decrease depending upon the actual need. KPCL reserves the right to cancel this recruitment process in part or full at any stage without assigning any reason.

e. The candidates who are in service shall submit a No Objection Certificate from their employer at the time of document verification in original, failing which their candidature will be rejected.

f. The candidates may please note that normally there may be large number of applications being submitted on the last day, which may lead to heavy network traffic, resulting in delay/non-submission of the online application. Therefore candidates are requested to submit their online applications early without waiting for the last day. The organization is not responsible for any failures in submission of online applications in time.

g. Any representation or correspondence regarding the recruitment process will NOT be entertained. All relevant information on recruitment will be made available in the KPCL website from time to time.

h. No application will be accepted through post, personal delivery, courier or any other mode.