Related Questions

For biomedical applications the mostly used amplifier is
A Single ended amplifier
B Differential amplifier
C Inverting operational amplifier
D Chopper amplifier
Which of the following motors is preferred for tape-recorders?
A Shaded pole motor
B Hysteresis motor
C Two value capacitor motor
D Universal motor
In X-Y recorders, the self balancing potentiometers plot emf as a function of
A Another emf
B Frequency
C Time
D Pressure
In strip chart recorders, the self balancing potentiometers plot emf as a function of
A Another emf
B Frequency
C Time
D Pressure
Which of the following motors is used in tape-recorders ?
A Hysteresis motor
B Reluctance motor
C Capacitor-run motor
D Universal motor
Hysteresis motor is particularly useful for high-quality record players and tape-recorders because
A it revolves synchronously
B it is not subject to any magnetic or mechanical vibrations
C it can be easily manufactured in extremely small sizes of up to 1 W output
D it develops hysteresis torque which is extremely steady both in amplitude and phase
Improper usages of words. choose the option which indicates the sentences in which the underlined word(s) has/have been used incorrectly. i. You need to hear both sides of the story before "making up" your mind. ii. We are "making up" more beds as some unexpected guests have come. iii. The curtains are "make up" of Indian silk.
A i only
B ii only
C iii only
D ii and iii only
Improper solid waste management in Dhaka city has resulted with—
A Serious engineering consequences
B Serious health and hygiene consequences
C Serious political consequences
D none of the above
A casting defect which occurs due to improper venting of sand is known as
A Cold shuts
B Blow holes
C Shift
D Swell
Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its
A friability & oxygen content
B caking index
C yield of carbonized products
D calorific value

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