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# Test: Thermodynamics - 3

## 25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Test: Thermodynamics - 3

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This mock test of Test: Thermodynamics - 3 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 25 Multiple Choice Questions for Mechanical Engineering Test: Thermodynamics - 3 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Thermodynamics - 3 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Test: Thermodynamics - 3 exercise for a better result in the exam. You can find other Test: Thermodynamics - 3 extra questions, long questions & short questions for Mechanical Engineering on EduRev as well by searching above.
QUESTION: 1

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QUESTION: 2

Solution:
QUESTION: 3

### For laminar flow between two flat plates the flow varies as

Solution:
QUESTION: 4

A what distance r from center of pipe of radiusR does average velocity occurs in a laminar flow

Solution:
QUESTION: 5

The shear force on a plate of area 1m2 whenlubricating oil of viscosity 9.81 poise. Filled b/wtwo parallel plate 1 cm apart moving with relatedvelocity of 2m/s.

Solution:
QUESTION: 6

Power transmitted through a pipe is given by :-

Q → Discharge
hf → Head loss due to friction in pipe

Solution:
QUESTION: 7

If the end of a pipe is suddenly closed which phenomenon would occur.

Solution:
QUESTION: 8

Air is flowing over a flat plate with a free streamvelocity of 24 m/s and its kinematic viscosity is 75 × 10-6 m2/s. It at a particular point reynoldsno. is 24000, the distance of the point from leading edge will be,

Solution:
QUESTION: 9

Which of the following chart is relation betweenfriction factor, reynolds no. and relative roughness

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QUESTION: 10

For towing of ships in a sea which of the followingmodel law would you use

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QUESTION: 11

The drag force encountered by a fluid on a bodyimmersed in the fluid is due to

Solution:
QUESTION: 12

When pressure drag is greater than that of frictiondrag the shape of the body is

Solution:
QUESTION: 13

The force on a curved place due to a jet of area 'a' velocity 'v' and angle of deflection 'o' is .

Solution:
QUESTION: 14

Heat transferred at constant pressure _____ the enthalpy of a system.

Solution:

At constant pressure, (dQ) = dh where h = u + pv is the specific enthalpy of the system.

QUESTION: 15

Torque can be defined as

Solution:
QUESTION: 16

If hm = mechanical efficiency
hh = hydraulic efficiency
hg = generating efficiency
ho = overall efficiency

Which of the following is true: -

Solution:
QUESTION: 17

Degree of reaction of pelton turbine is

Solution:
QUESTION: 18

For pelton turbine with blade angle ( Ø )maximum efficiency when u = v/2 is given by

Solution:
QUESTION: 19

Francis Turbine is a

a. Inward flow
b. outward flow
d. Tangential
e. Reaction
f. Impulse

Solution:
QUESTION: 20

It Do = Dia at outlet
Dn = Dia of hub
Vf = Flow velocity
Vw = whrill velocity
V = Absolute velocity Flow through an axial turbine can be given as

Solution:
QUESTION: 21

No. of vanes in a radial turbine and axial turbineare respectively

Solution:
QUESTION: 22

The discharge of double acting Reciprocating pump can be given as

Solution:
QUESTION: 23

The speed ratio of pelton wheel operating undera head of 900 m is 0.45. what is the peripheralvelocity of the turbine wheel.

Solution:
QUESTION: 24

Cavitation in hydraulic machines occurs at
1. Exit of pump
2. Entry of turbine

Which of the statements is correct

Solution:
QUESTION: 25

Consider the following data for the performance of a centrifugal pump.
Speed = 1000 rpm.
flow = 50 liters persecond