SSC JE 2023 Paper II Electrical Part 5

Q81. Identify the cycle on the basis of the T-S diagram shown below.

1. Sterling cycle
2. Otto cycle
3. Camot cycle
4. Diesel cycle

Correct Option: 2

SSC JE 2023 Paper II Electrical Part 5

Q82. Select the correct option on the basis of the statements given below.
Statement A: Water tube boilers are low-pressure boilers.
Statement B: Fire tube boilers are high-pressure boilers.

1. Statement B is true, but Statement A is false.
2. Statement A is true, but Statement B is false.
3. Both statements A and B are false.
4. Both statements A and B are true.

Correct Option: 3

Q.83 Identify the correct statement from the following.

1. In an SI engine, the carburettor supplies both air and grease mixture to the cylinder.
2. In an SI engine, the carburettor supplies grease to the cylinder.
3. In an SI engine, the carburettor supplies both air and fuel mixture to the cylinder.
4. In an SI engine, the carburettor supplies only fuel to the cylinder.

Correct Option: 3

SSC JE 2023 Paper II Electrical Part 5

Q.84 About which of the following aspects of a thermodynamic process does the first law of thermodynamics NOT provide information?

1. Total energy change in a system
2. Direction of a spontaneous process
3. Work done by a system
4. Heat transfer into or out of a system

Correct Option: 2

Q85. Identify the correct option based on the assertion (A) and reason (R) listed below.
Assertion (A): Dam walls are made thicker at the bottom than top.
Reason (R): Pressure due to water is highest at the bottom.

1. Both A and R are false
2. A is false but R is true
3. Both A and R are true
4. A is true but R is false

Correct Option: 3

SSC JE 2023 Paper II Electrical Part 5

Q.86 Based on the following two statements related to the Curtis stage turbine, select the correct option.
Statements:
A) In the Curtis stage turbine, the total enthalpy and pressure drop occurs in the nozzles so that the pressure remains constant in all the three rows of blades.
B) In the fixed (static) blade passage, both pressure and velocity remain constant.

1. Both Statement A and Statement B are incorrect.
2. Both Statement A and Statement B are correct.
3. Statement A is incorrect, but Statement B is correct.
4. Statement A is correct, but Statement B is incorrect.

Correct Option: 2

Q87. The velocity profile of a turbulent flow along a wall consists of four regions, characterised by the distance from the wall. The correct sequence of these regions from the wall is:

1. viscous sub-layer, buffer layer, transition layer, turbulent layer
2. buffer layer, viscous sub-layer, transition layer, turbulent layer
3. buffer layer, transition layer, viscous sub-layer, turbulent layer
4. viscous sub-layer, transition layer, buffer layer, turbulent layer

Correct Option:1

SSC JE 2023 Paper II Electrical Part 5

Q.89 Which of the following is a boiler accessory?

1. Pressure gauge
2. Economiser
3. Steam stop valve
4. Fusible plug

Correct Option: 2

SSC JE 2023 Paper II Electrical Part 5

Q.90 As per the steady flow energy equation, work is done in rotary compressors due to

1. increase in the adiabatic index
2. increase in entropy
3. increase in enthalpy
4. increase in viscosity

Correct Option: 3

Q.91 In case of frictionless flow with no work or heat transfer, the height of the energy grade line (EGL) is equal to the

1. constant; total Bernoulli head
2. variable; total Bernoulli head
3. constant; elevation and pressure head
4. variable; elevation and pressure head

Correct Option: 1

SSC JE 2023 Paper II Electrical Part 5

Q.92 A Carnot cycle runs between____adiabatic and____isothermal processes.

1. 2, 2
2 0,4
3. 1,3
4. 3, 1

Correct Option: 1

Q.93 The ratio of the sensible heat transfer to the total heat transfer in air-conditioning systems is known as

1. cooling factor
2. sensible heat factor
3. humidity factor
4. bypass factor

Correct Option: 2

SSC JE 2023 Paper II Electrical Part 5

Q.95 Based on the following two statements related to boilers, select the correct option.
Statements:
A) The major drawback in a LaMont boiler is formation and sticking of bubbles in the inner surface of heating tubes.
B) If the boiler pressure is raised to critical pressure, the steam and the water will have the same density and thereby, the risk of bubble formation can be eliminated.

1. Both Statement A and Statement B are correct and B is the solution to the problem presented in A.
2. Both Statement A and Statement B are correct, but B is not the correct solution to the problem presented in A.
3. Statement A is incorrect, but Statement B is correct.
4. Statement A is correct, but Statement B is incorrect.

Correct Option: 1

SSC JE 2023 Paper II Electrical Part 5

Q.97 High carbon steels have carbon percentage in the range of:

1. 6-8%
2. 8-10%
3. 11-15%
4. 0.6-2%

Correct Option: 4

SSC JE 2023 Paper II Electrical Part 5

Q.98 Regarding the pressure distribution of a fluid in an open rectangular tank, which of the below-mentioned statements is FALSE?

1. The resultant force acts through the centroid of the area of the bottom of the tank.
2. The gauge pressure at the water surface on the side wall is zero.
3. The pressure is maximum at the middle of the side wall of the tank.
4. Pressure is uniform on the bottom.

Correct Option: 3

Q.99 Among the following impeller arrangements, which impeller of the centrifugal pump offers the maximum efficiency?

1. Radial blade
2. Forward-curved blade
3. Straight blade
4. Backward-curved blade

Correct Option: 4

Q.100 Which of the following options represents the correct order of flow of water in the power conversion of the Pelton wheel turbine?

1. Nozzle, penstock, runner buckets, tail race
2. Penstock, nozzle, runner buckets, tail race
3. Runner buckets, nozzle, penstock, tail race
4. Penstock, runner buckets, nozzle, tail race

Correct Option: 2

SSC JE 2023 Paper II Electrical Part 5

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