Composite Shaft MCQs : This section focuses on the "Composite Shaft". These Multiple Choice Questions (MCQs) should be practiced to improve the Composite Shaft skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
_____ is a phenomenon by which the study and continuous flow of liquid are obstructed.
A. Slip
B. Separation
C. Air vessels
D. Knockage
Question 2
_____ pumps give a larger discharge.
A. Suction
B. Reciprocating
C. Centrifugal
D. Positive displacement
Question 3
_____ slip occurs, when the delivery pipe is short and the suction pipe is long.
A. Positive
B. Critical
C. Negative
D. Zero
Question 4
______ pumps, the torque is uniform.
A. Reciprocating pump
B. Suction pump
C. Delivery pump
D. Centrifugal pump
Question 5
________ reduces the possibility of separation.
A. Air vessels
B. Casing
C. Impeller
D. Vortex
Question 6
Calculate that torque, if the diameter of the shaft is 50 mm and revolutions @ 130 rpm. The maximum shear stress is 62.5 N/mm2.
A. 1564 Nm
B. 1478 Nm
C. 1534 Nm
D. 1494 Nm
Question 7
If the absolute pressure falls below ___________ m, the pump prone to separation.
A. 3 m
B. 2 m
C. 1.5 m
D. 2.5 m
Question 8
Negative slip occurs when the______ is more than theoretical discharge.
A. Virtual discharge
B. Actual discharge
C. Mean discharge
D. Mode discharge
Question 9
Reciprocating pump is an example of ___________
A. Positive displacement pump
B. Delivery pump
C. Suction pump
D. Rotodynamic pump
Question 10
The phenomenon of separation can also be known as ___________
A. Cavitation
B. Priming
C. Positive head
D. Pulsate
Question 11
The work done against friction is reduced due to _____________
A. Impeller
B. Priming
C. Air vessel
D. Vortex
Question 12
Volute is a type of _____________
A. Delivery pipe
B. Casing
C. Impeller
D. Suction pipe
Question 13
What is the example for a centrifugal pump?
A. Reciprocating pump
B. Suction pump
C. Rotodynamic pump
D. Delivery pump
Question 14
What is the practical maximum suction lift in a reciprocating pump?
A. 3.5 m
B. 4.5 m
C. 5 m
D. 6.5 m