1081. A pitched-blade turbine draws _________ a straight blade turbin3:
A. Less power than *
B. More power than
C. Same power as
D. Data insufficient to predict
1082. Scale up of agitator design requires :
A. Geometrical similarity only
B. Dynamic similarity only
C. Both Geometrical and dynamic similarity
D. The identicality of all geometric, dynamic, and kinematic features *
1083. Most commonly used joint in underground piple line is :
A. Sleeve joint *
B. Couplings
C. Flange
D. Expansion joint
1084. The valve used for very reomote and accurate control of fluid is a _____valve:
A. Needle *
B. Globe
C. Gate
D. Butterfly
1085. Check valve are used :
A. At high pressure
B. In bends
C. For controlling water flow
D. For unidirectional flow *
1086. Which one of the following facilitate close control of flow of fluids ?
A. Gate valve
B. Globe valve *
C. Butterfly valve
D. Check valve
1087. Glass pipes can be joined by :
A. Flanges
B. Welding
C. Soldering
D. Bell and spigot joint *
1088. The valve commonly used in pipes large than 2′ dia is a :
A. Globe valve
B. Plug cock
C. Gate valve *
D. Check Valve
1089. Co-efficient of velocity is __________ the co-efficient of discharge :
A. Less than
B. More than *
C. Equal to
D. Not telated to
1090. A piezometer provided in pipe measures :
A. Friction factor
B. Static pressure *
C. Dynamic pressure
D. None of these