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SSC JE 2019-20: Technical Quiz 12
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Question 1
A prismatic bar, as shown in the figure is supported between rigid supports. The support reaction will be
Question 2
An inventor states that his new conceptual engine, while operating between temperature limits of and , will reject 50% of heat absorbed from the source. What type of cycle will this engine have?
Question 3
The pressure exerted by dry air is 70% of that of atmospheric pressure. If pvs=0.6 bar, the relative humidity is
Question 4
A composite slab has two layers of different materials having internal conductivities k1 and k2. if each layer has the same thickness then what is the equivalent thermal conductivity of the slab?
Question 5
A gas turbine operating on Brayton cycle has the maximum temperature of 1200 k and the minimum temperature of 300 k . the cycle efficiency for the maximum work capacity will be
Question 6
According to Prandtl Blasius relation, the thickness of boundary layer in turbulent flow is______.
Question 7
Select the option, which correctly maps all the items in List A to their corresponding items present in List B:
Question 8
Match List-I with List-II and select the correct answer using the code give below the lists:
List-I
[A]. Car dashboard
[B]. Aircraft windows
[C]. Conduit pipes
[D]. Bearing and gears
List-II
[1]. Poly vinyl chloride (PVC)
[2]. TEFLON
[3]. Polyacrylonitrile
[4]. Polymethylmethacrylate
List-I
[A]. Car dashboard
[B]. Aircraft windows
[C]. Conduit pipes
[D]. Bearing and gears
List-II
[1]. Poly vinyl chloride (PVC)
[2]. TEFLON
[3]. Polyacrylonitrile
[4]. Polymethylmethacrylate
Question 9
The bore and stroke of the cylinder of a 6-cylinder engine working on an Otto-cycle are 17 cm and 30 cm respectively, total clearance volume is 9225 cm3, then what is the compression ratio?
Question 10
The inter-arrival times at a tool crib are exponential with an average time of 10 minutes and the length of the service time 6 minutes assumed to be exponential. The probability that a person arriving at the booth will have to wait is equal to:
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