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SSC JE 2019 - 20 Technical Quiz 60
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Question 1
Which one is true for an opaque body?
Question 2
For Power transmission purpose, which of the following screw thread is adopted in either direction?
Question 3
A load of 5kN is applied suddenly on a square cross-section bar. If the safe stress in the bar is 80MPa then what is the area of the cross-section?
Question 4
Grinding wheel is specified as “A 46 K 10 V 27" . The grain size of a wheel will be
Question 5
Consider a brass pin of 500 mm length and 40 mm diameter. If the cutting speed and feed are 60 m/min and 0.8 mm/rev respectively, the turning time to reduce the pin to 38.8 mm in one pass, is __________.
Question 6
Which of the following is the main cause for the variation of tractive effort of an engine?
a) Unbalanced part of primary force along the line of stroke
b) Secondary force along the line of stroke
c) Unbalanced part of primary force along the perpendicular to line of stroke
d) Secondary force along the perpendicular to line of stroke
Question 7
The number of links in a planar mechanism with revolute joints having 6 instantaneous centers is
Question 8
A nozzle is said to be choked when .......
Question 9
Type of compressor used in domestic refrigerator
Question 10
A booking office is managed by a single person. Customers arrive at a rate of 30 per hour. The service rate follows exponential distribution with a mean of 75 seconds. The expected (mean) waiting time of a customer in the queue (in seconds) is
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