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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

Question 2

The expression for bearing characteristics number is:

where,

Z = viscosity of lubricant (N-s/mm²)

n_j= 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

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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