Cochin Shipyard Assistant Engineer Maintance Paper 2020
Exam Date – 12th Feb 2020
A ship will sink if it does not displace water equal to its own
(a) Volume
(b) Density
(c) Surface Area
(d) Weight
d
Centrifugal pump is started with its delivery valve
(a) Kept fully closed
(b) Kept fully open
(c) Irrespective of any position
(d) Kept 50% open
a
Work done in a free expansion process is
(a) positive
(b) negative
(c) zero
(d) maximum
c
A petrol engine theoretically operates on
(a) constant pressure cycle
(b) constant volume cycle
(c) constant temperature cycle
(d) constant entropy cycle
b
Ties are load carrying members which carry
(a) Torsional loads
(b) Axial compressive laods
(c) Axial tension loads
(d) Transverse loads
c
The phenomenon of weld decay occurs in
(a) Cast Iron
(b) Brass
(c) Bronze
(d) Stainless steel
d
Continuous chips will be formed when machining speed is
(a) High
(b) Low
(c) Medium
(d) Irrespective of cutting speed
a
Critical path moves along the activities having total float of
(a) positive value
(b) negative value
(c) zero
(d) same value
c
The smallest change in measured value to which the instrument will respond is called
(a) Accuracy
(b) Precision
(c) Resolution
(d) Sensitivity
c
Momentum is defiend as
(a) force x distance
(b) mass x acceleration
(c) mass x time
(d) mass x velocity
d
Rotary compressors are best suited for
(a) large quantity of air at high pressure
(b) small quantity of air at high pressure
(c) small quantity of air at low pressure
(d) large quantity of air at low pressure
b
Which of the following is a disadvantage of ball valves
(a) They are large and heavy
(b) They have high maintenance costs
(c) They have relatively poor throttling characteristics
(d) They are among the most expensive of the valve types
c
PERT has the following time estimate
(a) One time estimate
(b) Two time estimate
(c) Three time estimate
(d) Four time estimate
c
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