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SSC JE 2019-20 Technical Quiz 79
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Question 1
Match List-I with List-II and select the correct answer using the code given below the lists:
List-I
A) Node point
B) Critical damping
C) Magnification factor
D) Hammer blow
List-II
1) Balancing of reciprocating masses
2) Torsional vibration of shaft
3) Forced vibration of spring-mass system
4) Damped vibration
List-I
A) Node point
B) Critical damping
C) Magnification factor
D) Hammer blow
List-II
1) Balancing of reciprocating masses
2) Torsional vibration of shaft
3) Forced vibration of spring-mass system
4) Damped vibration
Question 2
The expression for bearing characteristics number is:
where,
Z = viscosity of lubricant (N-s/mm2)
nj= journal speed (rev/s)
P = unit bearing pressure (N/mm2)
Question 3
The point of contraflexure in a beam is at the location where the
Question 4
Clausius inequality is stated as:
Question 5
The wet bulb depression is zero, when relative humidity is equal to
Question 6
Match List-I (Phenomenon) with List-II (Number/Law/Factor) and select the correct answer using the code given below the lists:
Lists-I
A) Radiation heat transfer
B) Conduction heat transfer
C) Forced convection
D) Transient heat flow
Lists-II
1) Biot number
2) view factor
3) Fourier’s law
D) Stanton number
Lists-I
A) Radiation heat transfer
B) Conduction heat transfer
C) Forced convection
D) Transient heat flow
Lists-II
1) Biot number
2) view factor
3) Fourier’s law
D) Stanton number
Question 7
When can a piezometer be not used for pressure measurement in pipes?
Question 8
Which one of the following metal forming processes is not a high energy rate forming processes?
Question 9
Which one among the following is the most effective strengthening mechanism of nonferrous metal?
Question 10
A compound pipe in series of diameter d1 , d2 , and d3 having lengths l1 , l2 , and l3 is to be replaced by an equivalent pipe of diameter d and length l , the size of the equivalent pipe is given by
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