Q.34 A workpiece is taper turned using lathe, where large diameter of workpiece is D and small diameter d. If the length of this workpiece is L, then half angle α is given by:Ans 1.
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Q.51 If the lower temperature fixed by the refrigeration application is high, the C.O.P. of the Carnot refrigerator will be ________.Ans 1. high2. very less3. the same4. lessCorrect Ans Provided: 1
Q.46 What is the unit of measurement of actual evaporation in steam boilers?Ans 1. kg fuel burnt / kg water evaporated2. m3/kg3. kg water evaporated / kg fuel burnt4. kgCorrect Ans Provided: 3
Q.39 The reversible adiabatic process in Mollier chart is represented by _________.Ans 1. a horizontal line2. a vertical line3. a line parallel to the saturated water line4. a line parallel to the saturated vapour lineCorrect Ans Provided: 2
Q.40 The function of an air pre-heater is _____________.Ans 1. to decrease the temperature of air before entering the furnace2. to decrease the temperature of air after entering the furnace3. to increase the temperature of air before entering ...
Q.37 The difference in low temperature cascade condenser temperature and high temperature cascade evaporator temperature is called ___________.Ans 1. degree of subcooling2. degree of superheat3. temperature overlap4. average temperatureCorrect Ans Provided: 3
Q.45 The direction of the friction force is:Ans 1. in the opposite direction of motion of the body or in the opposite direction of the tendency to move2. in the inclined direction of the motion of the body 3. ...
Q.56 Which fluid is used to increase the rate of evaporation of the liquid ammonia passing through the evaporator in domestic Electrolux refrigeration system?Ans 1. Ammonia2. Hydrogen3. Mercury4. WaterCorrect Ans Provided: 2
Q.55 The correct expression for the dimensional formula of volumetric discharge in the fluid equations is given by _____________.Ans 1.2.3.4.Correct Ans Provided: ...
Q.54 In the boiler mountings, the blow-off cock is fitted at ______.Ans 1. the top of the boiler shell2. near the steam supply line3. the bottom of the boiler shell4. the middle of the boiler shellCorrect Ans Provided: ...
