'Value' for value engineering and analysis purposes is defined as
The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
Quality screw threads are produced by
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
Friction at the tool-chip interface can be reduced by
The compressor capacity is defined as the
The axial flow compressor is preferred in air-craft gas turbines because of
An aftercooler is used to
The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.
A diesel engine has
The expansion of fuel in a four stroke cycle diesel engine
If a flow is to be continuously accelerated from a subsonic to a supersonic velocity in nozzle,it must ......
Entropy increase dS of the system can be expressed as
Orderly energy can be easily converted into disorderly energy.
A process always occurs in such a direction as to cause an increase in the entropy of the universe.
A flow is called hyper-sonic, if the Mach number is
The mass of 2.5 m⊃3; of a certain liquid is 2 tonnes. Its mass density is
The weight of a body is due to
The moment of a force
Which of the following is a vector quantity?
Total number of questions : 20
Number of answered questions : 0
Number of unanswered questions : 20
'Value' for value engineering and analysis purposes is defined as
Your Answer : (Not Answered)
Correct Answer : D
No answer description available for this question.
The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
Your Answer : (Not Answered)
Correct Answer : A
No answer description available for this question.
Quality screw threads are produced by
Your Answer : (Not Answered)
Correct Answer : D
Quality screw threads are produced by only thread casting. Quality screw threads are made by die-casting and permanent mould casting is very accurate and of high finish, if properly made.
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
Your Answer : (Not Answered)
Correct Answer : C
According to 3-2-1 principle, only the minimum locating points should be used to secure location of the work piece in any one plane.
(A) The work piece is resting on three pins A, B, C which are inserted in the base of fixed body. The work piece cannot rotate about the axis XX and YY and also it cannot move downward. In this case, the five degrees of freedom have been arrested.
(B) Two more pins D and E are inserted in the fixed body, in a plane perpendicular to the plane containing, the pins A, B and C. Now the work piece cannot rotate about the Z -axis and also it cannot move towards the left. Hence the addition of pins D and E restrict three more degrees of freedom.
(C) Another pin F in the second vertical face of the fixed body, arrests degree of freedom 9.
Friction at the tool-chip interface can be reduced by
Your Answer : (Not Answered)
Correct Answer : D
The cutting forces decrease with an increase in cutting speed, but it is substantially smaller than the increase in speed. With the increase in speed, friction decreases at the tool chip interface. The thickness of chip reduces by increasing the speed.
The compressor capacity is defined as the
Your Answer : (Not Answered)
Correct Answer : B
No answer description available for this question.
The axial flow compressor is preferred in air-craft gas turbines because of
Your Answer : (Not Answered)
Correct Answer : A
No answer description available for this question.
An aftercooler is used to
Your Answer : (Not Answered)
Correct Answer : C
No answer description available for this question.
The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.
Your Answer : (Not Answered)
Correct Answer : A
No answer description available for this question.
A diesel engine has
Your Answer : (Not Answered)
Correct Answer : C
No answer description available for this question.
The expansion of fuel in a four stroke cycle diesel engine
Your Answer : (Not Answered)
Correct Answer : C
No answer description available for this question.
If a flow is to be continuously accelerated from a subsonic to a supersonic velocity in nozzle,it must ......
Your Answer : (Not Answered)
Correct Answer : C
No answer description available for this question.
Entropy increase dS of the system can be expressed as
Your Answer : (Not Answered)
Correct Answer : B
Total entropy increase of the system is the sum of these two entropies.
Orderly energy can be easily converted into disorderly energy.
Your Answer : (Not Answered)
Correct Answer : A
An example can be, converting mechanical and electrical energy into internal energy by friction.
A process always occurs in such a direction as to cause an increase in the entropy of the universe.
Your Answer : (Not Answered)
Correct Answer : A
This comes from the second law which indicates the direction in which a process takes place.
A flow is called hyper-sonic, if the Mach number is
Your Answer : (Not Answered)
Correct Answer : D
No answer description available for this question.
The mass of 2.5 m⊃3; of a certain liquid is 2 tonnes. Its mass density is
Your Answer : (Not Answered)
Correct Answer : D
No answer description available for this question.
The weight of a body is due to
Your Answer : (Not Answered)
Correct Answer : D
No answer description available for this question
The moment of a force
Your Answer : (Not Answered)
Correct Answer : D
No answer description available for this question.
Which of the following is a vector quantity?
Your Answer : (Not Answered)
Correct Answer : C
No answer description available for this question.
Total number of questions : 20
Number of answered questions : 0
Number of unanswered questions : 20
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