For controlling algae, the chemical generally used is
A.alum
B.lime
C.copper sulphate
D.bleaching powder
A.alum
B.lime
C.copper sulphate
D.bleaching powder
A.Electron tube
B.Inductive
C.Capacitive
D.Piezo-electric
E.Resistance
A.0.5 to 1.7 seconds
B.2 to 3.5 seconds
C.3.5 to 4.5 seconds
D.4.5 to 7.0 seconds
E.7 to 10 seconds
A.exhaust and transfer (inlet) ports open and cloe simultaneously
B.exhaust port opens 5? before the transfer port and closes 5? after the transfer port
C.exhaust port opens 5? ahead of the transfer port but both ports close simultaneously
D.none of the above
A.S.I. engines
B.C.I. engines
C.Steam engines
D.none of the above
A.Screws with rounded head
B.Screws with button-head
C.Provided with slotted head and used with a nut
D.Headless
E.Generally provided with head longer than that of a normal screw
A.Distance between front and rear axles
B.Distance between the front tyres
C.Extreme length of the vehicle
D.Width of tyres
E.The combined width of rear tyres
A.Parson’s turbine
B.Curtis turbine
C.Rateau turbine
D.All of the above
A.electrically operated
B.mechanically operated
C.pneumatically operated
D.electro-magnetically operated
A.Production of continuous record on an instrument
B.Conversion of signal from one form to another
C.Indication by numbers or some other symbol of discrete increments, the value of some quantity
D.To perform various manipulations before indicating or recording results
E.None of the above