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SSC JE 2019 - 20 technical Quiz 51

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Question 1

In case of a multiple disc clutch, if n1 are the number of discs on the driving shaft and n2 are the number of the discs on the drive shaft, then the number of pairs of contact surfaces will be

Question 2

An axially loaded bar is subjected to a normal stress of 173 MPa. The shear stress in the bar is

Question 3

An ideal gas at 270 C is heated at constant pressure till its volume becomes three times. What would be the final temperature of gas?

Question 4

In a VCRS plant, the refrigerant leaves the compressor and evaporator with enthalpy of 205 kJ/kg and 177 kJ/kg respectively. Enthalpy of the refrigerant leaving the condenser is 105 kJ/kg. If the mass flow rate of the refrigterant is 0.2 kg/s, the refrigeration effect will be

Question 5

If the temperature of a solid surfaces changes from 270 C to 6270 C, then its emissive power changes which ratio?

Question 6

Blade erosion in steam turbines takes place

Question 7

During Inelastic collision of two particles, which one of the following is conserved?

Question 8

Tool life is affected mainly with

Question 9

Match List-I with List-II and select the correct answer using the code given below the list :
List-I
A. Capillarity
B. Vapour pressure
C. Viscosity
D. Specific gravity
List-II
1) Cavitation
2) Density of water
3) Shear forces
4) Surface tension

Question 10

Which of the following expressions represent the slope of adiabatic curve on lnT vs lnV plot:
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