SSC JE Mechanical Engineering 2nd March 2017 Shift-1
For the following questions answer them individually
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 1
A football was inflated to a gauge pressure of 1 bar when the ambient temperature was $$15^\circ C$$. When the game started next day, the air temperature at the stadium was $$5^\circ C$$. Assume that the volume of the football remains constant at 2500 $$cm^{3}$$. Gauge pressure of air to which the ball must have been originally inflated so that it would equal 1 bar gauge at the stadium is _____
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 2
The engine oil at $$150^\circ$$ C is cooled to $$80^\circ$$C in a parallel flow heat exchanger by water entering at $$25^\circ$$C and leaving at $$60^\circ$$ C. The exchanger effectiveness will be
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 3
The atomic packing factor is the highest in which of the following cubic lattice system?
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 4
The valves mounted on the boilers which change the direction of flow of steam by $$90^\circ$$ and valves fitted in the pipelines which allow the steam in the same direction are respectively called as _____
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 5
Which of the following are boiler mountings and not boiler accessories ?
A: Pressure gauge
B: Air preheater
C: Superheater
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 6
Entropy is a measure of
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 7
Gibbs free energy is considered at which one of the following condition?
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 8
In vapour absorption refrigeration systems, which of the following fluids are commonly used?
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 9
In a cross compound steam engine ......
SSC JE Mechanical Engineering 2nd March 2017 Shift-1 - Question 10
Which of the following is expected to have highest thermal conductivity?
