2020 2021 EduVark JCECE Sample Question Paper

#1
March 20th, 2017, 03:18 PM
 Unregistered Guest User
JCECE Sample Question Paper

Would you please get the exam paper of Jharkhand Combined Entrance Competitive Examination, so that I can prepare hard?
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#2
March 20th, 2017, 04:08 PM
 Super Moderator Join Date: Mar 2012
Re: JCECE Sample Question Paper

Don’t worry I will get the Jharkhand Combined Entrance Competitive Examination paper, so that you can prepare hard.

Here is the exam paper

Ques.1) Doubling the voltage gain causes a ________ dB ________.

10, increase
6, increase
10, decrease
6, decrease

Ques2.)________ frequencies are values of frequency at which the RC circuits reduce the voltage gain to 70.7% of its midrange value.
Critical
Cutoff
Corner
all of the above

Ques.3)A roll-off of 20 dB per decade is equivalent to a roll-off of ________ per octave.
3 dB
13 dB
12 dB
6 dB

Ques.4) An amplifier has an Rin = 1.2 k. The coupling capacitor is 1 F. Determine the approximate lower cutoff frequency.
133 Hz
1.33 kHz
13.3 kHz
133 kHz

Ques.5) According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
True
False

Ques.6)The friction experienced by a body, when in motion, is known as
rolling friction
dynamic friction
limiting friction
static friction

Ques.7) Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
1. v
2. v/2
3. v/4
4. v/8

Ques.8) The term ‘force’ may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.
1. Agree
2. Disagree

Ques.9) The coefficient of restitution for elastic bodies is one.
1. Correct
2. Incorrect

Ques.10) Strain energy is the
1. energy stored in a body when strained within elastic limits
2. energy stored in a body when strained upto the breaking of a specimen
3. maximum strain energy which can be stored in a body
4. proof resilience per unit volume of a material

Ques.11)A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the
2. perpendicular to the axis of load
3. maximum moment of inertia
4. minimum moment of inertia

Ques.12) The neutral axis of the cross-section a beam is that axis at which the bending stress is
1. zero
2. minimum
3. maximum
4. infinity

Ques.13) Euler’s formula holds good only for
1. short columns
2. long columns
3. both short and long columns
4. weak columns

Ques.14) The object of caulking in a riveted joint is to make the joint
1. free from corrosion
2. stronger in tension
3. free from stresses
4. leak-proof

Ques.15)Powder metallurgy process does not make metal powder by
1. atomisation
2. grinding/milling
3. hammering
4. electrolytic deposition

Ques.16) In the blast furnace, incorporation of water vapour in the blast gives the following effect.
1. Increases the reducing potential of the gas.
2. Increases the flame temperature.
3. No significant change occurs.
4. Increases the hydrogen content in the metal.

Ques.17) Pick out the wrong statement.
1. A ferromagnetic material becomes paramagnetic above the ‘Curie temperature’.
2. Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials.
3. Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces
4. Tungsten steel and alnico are not hard magnetic materials.

Ques.18) The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
1. 60 – 100
2. 400 – 700
3. 1200 -1500
4. 2000 – 2300

Ques.19) Maximum permissible air velocity in pipelines is about __________ metre/second.
1. 5
2. 10
3. 20
4. 40

Ques.20) A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as
1. southern blotting
2. northern blotting
3. polymerase chain reaction
4. DNA replication