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SSC JE 2019-20: Technical Quiz 7
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Question 1
By supercharging the diesel engine, the possibility of knocking
Question 2
The change in specific entropy of a system undergoing a reversible process is given by
In 
This is valid for which one of the follwing?
In This is valid for which one of the follwing?
Question 3
The buckling load for a column hinged at both ends is 10 kN. If the ends are fixed, the buckling load changes to
Question 4
The speed ratio of a Pelton wheel operating under a head of 900 m is 0.45. What is the peripheral velocity of the turbine wheel?
Question 5
Three metal walls of same wall thickness and cross-sectional area have thermal conductivities k, 2k and 3k respectively. For the same heat transfers, the temperature drop across the walls will be in the ratio
Question 6
A refrigeration plant uses a condenser with heat rejection ratio of 1.2. If the capacity of the plant is 210 kJ/min, then the value of the COP of the refrigeration plant is
Question 7
Steam with specific enthalpy 4000kJ/kg enters an adiabatic turbine operating at steady state with a flow rate 10kg/s. As it expands, at a point where h is 3000kJkg, 2kg/s is extracted for heating purposes. The remaining 8kg/s further expands to the turbine exit, where h=2000kj/kg. Neglecting changes in kinetic and potential energies, the net power output (in kW) of the turbine is
Question 8
Which of the following expressions represent the slope of adiabatic curve on lnT vs lnV plot:
Question 9
Two plates are joined together by means of single transverse and double parallel fillet welds as shown in the given figure. If the size of fillet is 5 mm and allowable shear load per mm is 300 N, what is the approximate length of each parallel fillet?
Question 10
A steel specimen 150 mm2 in cross-section stretches by 0.05 mm over a 50 mm gauge length under an axial load of 30 kN. What is the strain energy stored in the specimen?
(Take E = 200 GPa)
(Take E = 200 GPa)
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ESE & GATE MEGeneralDec 9ESE & GATE ME
