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Total Questions : 2607 | Page 100 of 261 pages
Question 991.

Rankine Gordon formula for buckling is valid for


  1.    long column
  2.    short column
  3.    short and long column
  4.    very long column
 Discuss Question
Answer: Option C. -> short and long column


Question 992.

A long helical
spring having a spring stiffness of 12 kN/m and number of turns 20,
breaks into two parts with number of turns 10 each in both the parts. If
the two parts are connected in series, then the softness of the
resultant spring will be


  1.    6 kN/m
  2.    12 kN/m
  3.    24 kN/m
  4.    30 kN/m
 Discuss Question
Answer: Option B. -> 12 kN/m


Question 993.
The ratio of pitch circle diameter in millimetres to the number of teeth, is called
  1.    circular pitch
  2.    diametral pitch
  3.    module
  4.    none of these
 Discuss Question
Answer: Option C. -> module


Question 994.
 
The cold working of metals is carried out __________ the recrystallisation temperature.
  1.    above
  2.    below
 Discuss Question
Answer: Option B. -> below


Question 995.

The groove angle of the pulley for rope drive is usually


  1.    `20^circ`
  2.    `35^circ`
  3.    `45^circ`
  4.    `60^circ`
 Discuss Question
Answer: Option C. -> `45^circ`


Question 996.

According to Indian standard specifications, 100 H6/g5 means that


  1.    tolerance grade for the hole is 6 and for the shaft is 5
  2.    tolerance grade for the shaft is 6 and for the hole is 5
  3.    tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7
  4.    tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
 Discuss Question
Answer: Option A. -> tolerance grade for the hole is 6 and for the shaft is 5


Question 997.
 
A plate with a circular hole in the centre is subjected to a pull of P. The maximum stress induced at the edge of the hole is three times of the nominal stress.
  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 998.
.A screw is said to be a self locking screw, if its efficiency is
  1.    less than 50 %
  2.    more than 50%
  3.    equal to 50%
  4.    none of these
 Discuss Question
Answer: Option A. -> less than 50 %


Question 999.
 
An aluminium member is designed on the basis of
  1.    yield stress
  2.    elastic limit stress
  3.    proof stress
  4.    ultimate stress
 Discuss Question
Answer: Option A. -> yield stress


Question 1000.
The process which improves the machinability of steels, but lowers the hardness and tensile strength is
  1.    normalising
  2.    full annealing
  3.    process annealing
  4.    spheroidising
 Discuss Question
Answer: Option D. -> spheroidising


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