Correct Answer:- Option-A
Question67:-Which of the following water turbines does not require a draft tube ?
A:-Propeller turbine
B:-Kaplan turbine
C:-Francis turbine
D:-Pelton turbine
Correct Answer:- Option-D
Question68:-For transferring power through 90° the suitable gear is
A:-Helical
B:-Spur
C:-Bevel
D:-Herringbone
Correct Answer:- Option-C
Question69:-Cavitation in centrifugal pumps can be reduced by
A:-Reducing the discharge
B:-Reducing suction head
C:-Throttling the discharge
D:-Increase the flow velocity
Correct Answer:- Option-B
Question70:-The pump is to pumping high viscous fluid belongs the category of
A:-Screw pump
B:-Turbine pump
C:-Planger pump
D:-Centrifugal pump
Correct Answer:- Option-A
Question71:-Identify the hardest tool material
A:-Steel
B:-Ceramics
C:-Tungston carbide
D:-Diamond
Correct Answer:- Option-D
Question72:-The essential constituent of any hardened steel is
A:-Austenite
B:-Cementite
:-Martensite
D:-Pearlite
Correct Answer:- Option-C
Question73:-The collapsible tooth paste tube are made by
A:-Drawing
B:-Deep drawing
:-Rolling
D:-Extrusion
Correct Answer:- Option-D
Question74:-The vertical passage for bringing molten metal to mould cavity is called
A:-Sprue
B:-Riser
C:-Gate
D:-Chaplet
Correct Answer:- Option-A
Question75:-In investment casting the mould is usually made of
A:-Aluminium
-Bronze
C:-Wax
D:-Steel
Correct Answer:- Option-C
Question76:-Electronic components are usually joined by
A:-Brazing
-Sintering
C:-Soldering